2020 GMC SIERRA 1500

12 recalls, 687 complaints - 1,814 TSBs - 4/5 safety rating

POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY

Defect Description

General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to l... Read more

Consequence

Rear wheel lock up increases the risk of a crash.

Remedy

Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560.... Read more

1,055 vehicles affected

Manufacturer: General Motors, LLC

POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE

Defect Description

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and caus... Read more

Consequence

Rear wheel lock-up can increase the risk of a crash.

Remedy

Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 202... Read more

463,295 vehicles affected

Manufacturer: General Motors, LLC

TIRES:TEMPORARY/EMERGENCY SPARE TIRE

Defect Description

General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake syste... Read more

Consequence

An ABS system that does not function properly can increase the risk of a crash.

Remedy

Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires a... Read more

626 vehicles affected

Manufacturer: General Motors, LLC

TIRES

Defect Description

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental ... Read more

Consequence

Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.

Remedy

GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac cus... Read more

33,838 vehicles affected

Manufacturer: General Motors, LLC

SEAT BELTS

Defect Description

General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat fram... Read more

Consequence

If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.

Remedy

GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service... Read more

624,216 vehicles affected

Manufacturer: General Motors, LLC

TIRES

Defect Description

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.

Consequence

Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.

Remedy

GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service a... Read more

7,516 vehicles affected

Manufacturer: General Motors LLC

POWER TRAIN:DRIVELINE:DRIVESHAFT

Defect Description

General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 trucks. One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving.

Consequence

If the driveshaft separates, there may be a loss of propulsion, increasing the risk of crash.

Remedy

GM will notify owners, and dealers will replace the driveshaft, free of charge. The recall is expected to begin December 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N202314870.

42 vehicles affected

Manufacturer: General Motors LLC

AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR

Defect Description

General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly cr... Read more

Consequence

If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.

Remedy

GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for ... Read more

769 vehicles affected

Manufacturer: General Motors LLC

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

Defect Description

General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The bolts used to attach the front and/or rear brake calipers may have not been heat treated and may break under load.

Consequence

Broken caliper bolts can reduce brake performance or interfere with wheel rotation and increase the risk of a crash.

Remedy

GM will notify owners, and dealers will replace the brake caliper bolts, free of charge. The recall began March 23, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-866-522-9559. GM's number for this recall is N202294420.

20,352 vehicles affected

Manufacturer: General Motors LLC

ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

Defect Description

General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.

Consequence

An intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing t... Read more

Remedy

GM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the ... Read more

350,371 vehicles affected

Manufacturer: General Motors LLC

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Defect Description

General Motors LLC (GM) is recalling certain 2020 Cadillac Escalade, Escalade ESV, Chevrolet Camaro, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The fuel pump may be missing a pressure regulator, allowing for over-pressurization of the fuel system.

Consequence

Over-pressurization can crack the fuel pump and cause leaks, increasing the risk of a fire in the presence of an ignition source.

Remedy

GM will notify owners, and dealers will replace the fuel pump, free of charge. The recall began December 18, 2019. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-888-988-7267. GM's number for this recall i... Read more

502 vehicles affected

Manufacturer: General Motors LLC

SEAT BELTS:PRETENSIONER

Defect Description

General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2020 Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 vehicles equipped with carpet floor covering. When the front seat belt pretensioners deploy, hot gas may vent through an opening... Read more

Consequence

A vehicle fire could result if materials ignite inside the vehicle.

Remedy

GM will notify owners, and dealers will close off the opening in the pretensioner bracket, free of charge. The recall began December 13, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192270600.

556,399 vehicles affected

Manufacturer: General Motors LLC

Complaint Statistics

687 total complaints 30 crashes 13 fires 22 injuries

Top Reported Components

Component	Complaints
ENGINE	133
ELECTRICAL SYSTEM	91
POWER TRAIN	77
UNKNOWN OR OTHER	64
SERVICE BRAKES	48
STEERING	44
FUEL/PROPULSION SYSTEM	27
AIR BAGS	20
SUSPENSION	17
VEHICLE SPEED CONTROL	15

Incident date: Sep 3, 2026

Powertrain issues and a chassis issue that is extremely dangerous.Tailgate on rare occasions falls open by itself. There is a design flaw in the placement of the catalytic converters. The heat is burning up the fluid. I could not believe my eyes when I serviced the transmission. This is another shor... Read more

Incident date: Aug 9, 2026

I was driving home with my wife. The engine just cut off. No power to the gas pedal. Luckily we were able to coast long enough to find a shoulder to pull off onto. Truck wouldn’t restart. Had to call a tow truck and have it towed to the Chevy dealership. The engine was already repaired once. ... Read more

Incident date: Sep 3, 2026

Incident date: Sep 7, 2026

I was driving on the highway at 70mph when out of no where my truck stopped running and I received a message warning to put the truck in neutral and restart the engine. It was very alarming being on the highway and this happening. I was unable to restart the vehicle so I had to coast and navigate ... Read more

Incident date: Aug 31, 2026

Lifter failed due to AFM system. Cyl 8 misfire due to oil fouling. The onboard computer got confused and would not release the parking brake until repeated attemtps to release it. 5.3L V8 2020 model year 115250 miles. Isn't this the same problem as the 2021 and newer engines? 8spd transmission.... Read more

Incident date: Aug 31, 2026

Incident date: Jul 20, 2026

2020 GMC Sierra 1500 AT4, 3.0L LM2 Duramax. In service 08/13/2020. Five glow plug failures on five different cylinders in under 19,000 miles, all at one GM dealer, all part 24000504: Cyl 1, 10/21/2024, 38,650 mi, P0671, RO 13714, warranty. Cyl 6, 11/05/2024, 38,793 mi, P1330, RO 26665, warranty. Cy... Read more

Incident date: Aug 28, 2026

Driving approximately 75mph on a local highway, my engine shut down with no warning, the screen said to shift into neutral to restart but nothing happened so I was stranded along the side of the highway and had to wait 2hrs for a tow truck in the middle of the night and the engine is currently locke... Read more

Incident date: Aug 30, 2021

This truck was bought brand new by my father. Around 38,000 miles it begin having issues with shifting which eventually got worse. When I searched google for issues many others on different pages have had the same issues. The shifting would be so rough it feels like you're being hit by another vehic... Read more

Incident date: Aug 5, 2026

Misfire on 2 cylinder, noise on start up diagnostic code P0300 P0302 P050 I was driving home and the engine started making a strange sound, vehicle would could no increase speed normally. The dealership did basic analysis from the onboard computer and did a compression test. Heavy knocking sound ... Read more

Incident date: Aug 6, 2026

On XXX my GMC 6.2L Sierra 1500 Denali engine cutoff in Traffic and had to be towed. There was no indications prior to failure. Found out after replacing battery that the 400amp fuse blew and the engine seized. Vehicle was then towed to Hendrick Buick GMC dealer in [XXX] for repair. My engine has... Read more

Incident date: Jul 15, 2026

High pressure fuel pump went at 80k and now on my 2nd transmission under 100k miles this is absolutely absurd

Incident date: Aug 19, 2026

I have a rear sliding window on the cab of my truck that leaks from both ends of the plastic guide. I noticed it when placing my young children in their car seats. I contacted my dealership and was informed the repair would cost $1500+ and not be covered by GM or warranty.

Incident date: Jul 15, 2026

High pressure fuel pump went at 80k and now on my 2nd transmission under 100k miles this is absolutely absurd

Incident date: Aug 30, 2021

Incident date: Aug 7, 2026

Engine went into limp mode and engine is no longer good

Incident date: Nov 13, 2025

I purchased my 2020 GMC Sierra 1500 AT4 with the L87 6.2L V8 new from a GMC dealer in March 2020 for $65,910 (VIN [XXX]). The truck has primarily highway mileage, very little towing, and has been well maintained. At 166,634 miles on [XXX], the truck developed a flashing check-engine light. The GMC d... Read more

Incident date: Dec 15, 2022

Our 2020 GMC SIERRA 1500 has suffered catastrophic systems and engine failure including the brakes multiple times for almost 4 years. It has happened in high traffic and on the interstate each time having to be coasted off of the road to come to a rolling stop. There have been nine repair attempts... Read more

Incident date: Mar 1, 2016

The 5.3L Engine active fuel management failure problem. This known problem with the GMC motors was not disclosed by any dealerships or the manufacturer. While driving down the roadway, the truck had an engine malfunction and I was fortunate enough to be able to safely pull over. The check engine ... Read more

Incident date: Jul 4, 2026

Piston 5 dropped compression to 120 the rest were 190-200. The engine failed therefore none of my parking assist sensors were working and I backed into a car because the truck was misfiring.

Crash

Incident date: Mar 1, 2016

Incident date: Jul 4, 2026

Piston 5 dropped compression to 120 the rest were 190-200. The engine failed therefore none of my parking assist sensors were working and I backed into a car because the truck was misfiring.

Crash

Incident date: Dec 15, 2022

Incident date: Jul 4, 2026

Piston 5 dropped compression to 120 the rest were 190-200. The engine failed therefore none of my parking assist sensors were working and I backed into a car because the truck was misfiring.

Crash

Incident date: Dec 15, 2022

Incident date: Jul 1, 2026

Gas fill door won’t stay closed

Incident date: Aug 9, 2026

Nearly 25% of the total time I have owned this Certified Pre-Owned vehicle (146 out of 564 days), it has been non-functional and in the shop — roughly 1 out of every 4 days of ownership. I am a [XXX} with a [XXX] child, and I purchased this vehicle as a Certified Pre-Owned (CPO) Porsche — expect... Read more

Incident date: Jul 31, 2026

I purchased this new 2026 Kia Seltos with approximately 32 miles. The vehicle now has fewer than 600 miles and has experienced two incidents of sudden, intermittent, complete loss of accelerator response. During one incident in highway traffic, the vehicle unexpectedly began decelerating and pressi... Read more

Incident date: Jul 31, 2026

Incident date: Jul 22, 2026

While parking our Volvo in the parking lot of Trader Joe's grocery store on [XXX], the Volvo suddenly accelerated and collided with the adjacent car in the next parking slip and rammed the car in the forward parking slip pushing about 15 to 20 feet ahead. Luckily, nobody was hurt though it could hav... Read more

Crash

Incident date: Jul 1, 2026

Over the past month, on two occasions my vehicle has emitted gasoline fumes filling my garage, and today my interior cabin smelled like gasoline. Additionally, after warming up, my vehicle experiences acceleration drop/stuttering when accelerating after idling. This happens every day. I took the car... Read more

Incident date: Jul 22, 2026

The contact's daughter owns a 2013 Hyundai Veloster. The contact stated that while the vehicle was parked, it caught on fire. The vehicle became engulfed in flames, and the authorities were called to the scene. The Fire Department extinguished the fire. The vehicle was later towed to an impound lot ... Read more

Fire

Incident date: Jul 12, 2026

The instrument cluster continues to fail after repair to Hyundai recall #304 was done. Heads-up display failed, flickered, restarted. Instrument cluster turned off and flashed “signal not found” for approximately 45 minutes before returning. Necessary information to legally and safely drive was ... Read more

Incident date: Jul 2, 2026

I am writing to formally express my concern regarding the premature oxidation developing inside the tail lights on my 2023 Toyota RAV4 XLE. The oxidation is present on both the driver and passenger side tail light assemblies. As the oxidation continues to worsen, it reduces the clarity and effectiv... Read more

Incident date: Jul 2, 2026

High pressure fuel pump failed at 100,000 miles cause the vehicle to lose power.

Incident date: Jul 12, 2026

Incident date: Jul 2, 2026

While driving from [XXX] to [XXX], all of the safety systems started to fail. We had driven about 45 minutes from our starting point. As the system started to fail, they would flash across the screen on the dashboard saying each one that was failing. We pulled over to the side of the road, and my hu... Read more

Fire

Incident date: Sep 1, 2025

This event occurred after a history of ABS system issues as well as Infotainment system issues since 10k miles. During morning commute at approximately 60 mph, all dash warnings began to chime associated with the Touring features of the sedan. TPMS, Collision Avoidance, Braking System, Lane Departu... Read more

Incident date: Jun 1, 2026

My car seized while I was driving. It started fine and I drove about 10 min down the road and all of a sudden it seized. My car was towed to dealership. OnStar sent me a code p129f fuel pump. I was driving on the road and it seized. Could have caused a bad accident. Cars had to go around me. Yes the... Read more

Incident date: Dec 15, 2025

The contact owns a 2021 Ram Promaster 1500. The contact received notifications of NHTSA Campaign Number: 25V552000 (Back Over Prevention) and 25V720000 (Engine and Engine Cooling); however, the parts for the recall repairs were unavailable. The dealer was contacted, and the contact was informed that... Read more

Incident date: Jun 19, 2026

The contact owns a 2020 Nissan Leaf. The contact received notification of NHTSA Campaign Number: 24V700000 (ELECTRICAL SYSTEM); however, the local dealer stated that the part for the recall repair was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time fo... Read more

Incident date: May 10, 2026

Same exact issue as NHTSA Recall 24V-744, needs to be extended to cover this generation of Honda Civics. Steering sticks while driving, causing driver to use more than normal force to unstick wheel. This causes over corrections while driving. Occurs at all speeds. Requires constant corrections ever... Read more

Incident date: Jun 15, 2026

I have a 2025 ram 2500 diesel, and I use it to tow, as I am a farmer, and have a farm. I pull stock trailers, my tractor, and other trailers associated with my farm. I took my truck in for the trailer tow module recall to be done over 4 months ago, and they said they had to order the part and would ... Read more

Incident date: Jun 9, 2026

Gauge Cluster Glare during the day. Reflection from the steering columns makes the gauge cluster completely obstructed. Known issue, many complaints across all the Corolla Cross groups. This is effecting Vehicles from 2023 models to current.

Incident date: Apr 28, 2026

The contact owns a 1999 GMC Sierra 1500. The contact stated that the ABS erroneously engaged at low speeds, and the tailgate was ajar due to a fractured hinge. The contact received the recall notification letter of NHTSA Campaign Numbers: 05V379000 (Service Brakes, Hydraulic) and 06V066000 (Structur... Read more

Incident date: Apr 28, 2026

UNKNOWN. Car has been making a humming noise for the last 4 years. I have taken it to multiple shops, and repair companies for inspection. Wheel bearings have been repaired 2x, ball joints, as well as sway bars. Tires have been replaced, breaks and rotors have been replaced. Noise still persisted. N... Read more

Incident date: Apr 28, 2026

Incident date: Feb 11, 2026

The driver's seat wiring harness on my daughter's 2007 Acura MDX has failed under normal operating conditions. The physical adjustment and movement of the driver's seat causes the factory wiring harness to over-tension and fracture internally. This has resulted in an intermittent, escalating failure... Read more

Incident date: Feb 11, 2026

Showing 50 of 687 complaints.

NHTSA Safety Ratings, 2020 GMC SIERRA 1500

2020 GMC Sierra 1500 PU/CC 4WD

Category	Rating
Overall Rating	4 / 5 ★★★★☆
Frontal Crash	4 / 5 ★★★★☆
Frontal Crash, Driver	4 / 5 ★★★★☆
Frontal Crash, Passenger	4 / 5 ★★★★☆
Side Crash	5 / 5 ★★★★★
Side Crash, Driver	5 / 5 ★★★★★
Side Crash, Passenger	5 / 5 ★★★★★
Rollover	4 / 5 ★★★★☆
Rollover Risk	19.8%

Safety Technology

Feature	Status
Electronic Stability Control	Standard
Forward Collision Warning	Optional
Lane Departure Warning	Optional

Source: NHTSA 5-Star Safety Ratings Program. Ratings are based on crash tests conducted by the National Highway Traffic Safety Administration.

Technical Service Bulletins, 2020 GMC SIERRA 1500

1,814 manufacturer communications from 875 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
350000 EQUIPMENT	275
060000 ENGINE AND ENGINE COOLING	259
110000 ELECTRICAL SYSTEM	254
100000 POWER TRAIN	124
060000 ENGINE (PWS)	89
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL	76
160000 STRUCTURE	61
356000 EQUIPMENT ADAPTIVE/MOBILITY	56

060000 ENGINE AND ENGINE COOLING

The informational bulletin advises the tech to use the glow plug bore cleaner to reduce the chance of soot building up on the glow plug causing a premature failure.

200000 WHEELS

This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).

110000 ELECTRICAL SYSTEM

This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

350000 EQUIPMENT

This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.

110000 ELECTRICAL SYSTEM

This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.

030000 SERVICE BRAKES, HYDRAULIC

This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.

350000 EQUIPMENT

This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

200000 WHEELS

This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.

160000 STRUCTURE

This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.

110000 ELECTRICAL SYSTEM

This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

162510 STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS

This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.

353000 EQUIPMENT:ELECTRICAL

This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.

160000 STRUCTURE

This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

118000 ELECTRICAL SYSTEM:SOFTWARE

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

160000 STRUCTURE

This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).

060000 ENGINE AND ENGINE COOLING

This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.

350000 EQUIPMENT

This informational bulletin provides information on availability for a locking gas cap for trucks are operated in high amount of dirt or dust which can migrate to the filler cap area.

081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

This informational bulletin provides information on availability for a locking gas cap for trucks are operated in high amount of dirt or dust which can migrate to the filler cap area.

350000 EQUIPMENT

This technical bulletin provides repair information to correct a customer concern of U170 Radio Software Update.

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of U170 Radio Software Update.

118000 ELECTRICAL SYSTEM:SOFTWARE

This Preliminary information communicates a Radio software update resolution for OnStar LED Red And Wifi Hotspot Inoperative After Remote Vehicle Start concern.

060000 ENGINE AND ENGINE COOLING

This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels shou

110000 ELECTRICAL SYSTEM

This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure.

100000 POWER TRAIN

This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure.

060000 ENGINE AND ENGINE COOLING

This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure.

350000 EQUIPMENT

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

350000 EQUIPMENT

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

110000 ELECTRICAL SYSTEM

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended

132000 VISIBILITY:GLASS, SIDE/REAR

This technical bulletin provides a procedure to correct the condition of Suction Cup Marks on Window Glass.

080000 FUEL SYSTEM, DIESEL

This bulletin advises the tech that there are extra characters on the fuel injector and to ignore the last numbers when identifying flow rate.

353000 EQUIPMENT:ELECTRICAL

This Preliminary information communicates an issue where GM Accessory Illuminated Emblem may cause an issue with the left headlight/turn signal and dealership are to disable the Accessory Illuminated Emblem until a fix is available.

120000 EXTERIOR LIGHTING

This Preliminary information communicates to the dealers information related to a Malfunction Indicator Lamp (MIL) Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF P30C7 P30CB Setting.

120000 EXTERIOR LIGHTING

This Preliminary information communicates to dealers? information related to a Malfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting. Advises the technician to perform Electric Engine Coolant Pump connection inspections. To cl

070000 FUEL SYSTEM, GASOLINE

060000 ENGINE AND ENGINE COOLING

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary Information communication advises the technician with a tip when the vehicle stops running after it has been idling for 2.5 hours. This is normal operation of the vehicle built with regular production code BTM and without R

980000 UNKNOWN OR OTHER

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

100000 POWER TRAIN

This Preliminary information communicates to have the dealer contact TAC with the transmission TUN number prior to transmission installation.

060000 ENGINE AND ENGINE COOLING

This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446, P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a procedure to replace the valve lifter and guides to correct customer concerns of Poor Engine Performance, Engine Misfires, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, P0304

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.

162500 STRUCTURE:BODY:TAILGATE

This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.

170000 LATCHES/LOCKS/LINKAGES

This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarly on hold while PIE0572 is active. PIE0572 has now ended a

100000 POWER TRAIN

This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement

060000 ENGINE AND ENGINE COOLING

This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.

118520 ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS

This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.

118510 ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE

118420 ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS

118410 ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SOFTWARE

273000 LANE DEPARTURE: BLIND SPOT DETECTION

260000 FORWARD COLLISION AVOIDANCE

This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".

106000 POWER TRAIN:AXLE ASSEMBLY

This Preliminary information communicates how to isolate a tick noise from the rear axle housing.

251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnosti

350000 EQUIPMENT

This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagemen

110000 ELECTRICAL SYSTEM

100000 POWER TRAIN

010000 STEERING

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.

110000 ELECTRICAL SYSTEM

This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.

060000 ENGINE AND ENGINE COOLING

This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

070000 FUEL SYSTEM, GASOLINE

This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

030000 BRAKES (PWS)

This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the calipe

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset.

060000 ENGINE AND ENGINE COOLING

This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset.

100000 POWER TRAIN

This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle

060000 ENGINE AND ENGINE COOLING

353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

This Preliminary information communicates to dealers of a known issue with failed map update

162500 STRUCTURE:BODY:TAILGATE

This Preliminary information communicates an issue where the minor tailgate will not open due to an aftermarket device installed on the vehicle.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the heater core inlet and outlet hoses for being twisted or kinked.

138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the heater core inlet and outlet hoses for being twisted or kinked.

110000 ELECTRICAL SYSTEM

This Preliminary information communication provides information to the technician on installing Regular Production Option Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitte

110000 ELECTRICAL SYSTEM

This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.

350000 EQUIPMENT

This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.

350000 EQUIPMENT

This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present o

110000 ELECTRICAL SYSTEM

060000 ENGINE AND ENGINE COOLING

Special Coverage. Certain vehicles may have a condition that could cause the enginea??s cylinder 2 glow plug to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble

060000 ENGINE AND ENGINE COOLING

This service bulletin provides Information on Purge Pump Part Replacement and Purge pump Part Number Interchangeability.

110000 ELECTRICAL SYSTEM

This technical bulletin provides repair information to correct a customer concern of 2020 - 2022 Silverado and Sierra Equipped with Diesel Engine Setting DTCs P20BB or P20C3.

060000 ENGINE AND ENGINE COOLING

This technical bulletin provides repair information to correct a customer concern of 2020 - 2022 Silverado and Sierra Equipped with Diesel Engine Setting DTCs P20BB or P20C3.

160000 STRUCTURE

This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).

100000 POWER TRAIN

This service bulletin advises the technician that the possible cause may not be from a faulty clutch piston or extension housing and to perform testing on transmission for other possible issues, but it still may be possible on high mileage

160000 STRUCTURE

This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

060000 ENGINE AND ENGINE COOLING

This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.

060000 ENGINE AND ENGINE COOLING

This PI bulletin advises the technician on the proper way to install the pistons in an engine.

100000 POWER TRAIN

This PI bulletin advises the technician on the proper way to install the pistons in an engine.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Di

Showing 100 of 1,814 bulletins.

NHTSA Safety Investigations, GMC SIERRA 1500

Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.

RQ, Open , Model Year: 2022

Upper Grille Deflector Detachment

The Office of Defects Investigation (ODI) has received 118 complaints alleging detachment of the upper grille deflector on 2022-2024 model year (MY) GMC Sierra vehicles. 21 of these 118 complaints allege that the upper grille deflector detached after Recall 25V-060 was performed. The complaints alle... Read more

GMC SIERRA 1500 - All Years Overview

Complete safety history for the GMC SIERRA 1500 across all model years (1997, 2026).

144 Total Recalls

11,613 Total Complaints

1 Investigations

493 Reported Crashes

175 Reported Fires

15 Reported Deaths

GMC SIERRA 1500 - Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year	Recalls	Complaints
2026	2	147	View
2025	1	175	View
2024	1	489	View
2023	3	626	View
2022	6	769	View
2021	7	773	View
2020 (current)	12	687
2019	10	905	View
2018	7	428	View
2017	6	474	View
2016	8	448	View
2015	9	932	View
2014	9	1,031	View
2013	3	147	View
2012	3	149	View
2011	5	364	View
2010	4	217	View
2009	4	280	View
2008	2	442	View
2007	3	313	View
2006	2	183	View
2005	3	218	View
2004	5	253	View
2003	4	210	View
2002	4	192	View
2001	5	171	View
2000	3	215	View
1999	4	182	View
1998	4	68	View
1997	5	100	View
1996	0	7	View
1995	0	3	View
1994	0	15	View

Other GMC Models

Model	Recalls	Complaints
YUKON	224	6,198	View
SIERRA 2500	169	2,217	View
SIERRA 3500	161	730	View
YUKON XL	157	2,899	View
SAVANA	142	448	View
SIERRA	133	4,904	View
ACADIA	84	7,520	View
JIMMY	71	3,791	View

Vehicle Safety

Consumer Safety

Infrastructure

Public Health

2020 GMC SIERRA 1500

Complaint Statistics

Top Reported Components

NHTSA Safety Ratings, 2020 GMC SIERRA 1500

Safety Technology

Technical Service Bulletins, 2020 GMC SIERRA 1500

Most Affected Components

NHTSA Safety Investigations, GMC SIERRA 1500

GMC SIERRA 1500 - All Years Overview

GMC SIERRA 1500 - Year by Year

Other GMC Models