2021 GMC SIERRA 1500

7 recalls, 773 complaints - 1,597 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

ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

Defect Description

General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing d... Read more

Consequence

Engine failure increases the risk of a crash.

Remedy

Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification le... Read more

597,571 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

SEAT BELTS

Defect Description

General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts m... Read more

Consequence

If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury.

Remedy

GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began January 29, 2021. Owners may contact GMC customer service at 1-800-462-8785, Cadillac customer service at 1-800-458-8006, or Chevrolet customer service at 1-800-222-1020. GM's number for this recal... Read more

470 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

Complaint Statistics

773 total complaints 33 crashes 17 fires 145 injuries

Top Reported Components

Component	Complaints
ENGINE	169
ELECTRICAL SYSTEM	88
POWER TRAIN	82
UNKNOWN OR OTHER	73
STEERING	53
SERVICE BRAKES	34
FUEL/PROPULSION SYSTEM	31
VEHICLE SPEED CONTROL	23
AIR BAGS	18
STRUCTURE:BODY	17

Incident date: Sep 10, 2026

The engine coolant control valve on my 2021 GMC Sierra 3.0L Duramax diesel failed. This specific component failure triggers an active vehicle 'No-Restart' safety event during automatic engine stop/start operations (per GM Service Bulletin #24-NA-070). This condition can suddenly prevent the vehicle ... Read more

Incident date: Jun 14, 2026

Engine stop working, lots of black smokes through the exhausts and vibrating weird. Lifters failed amoung other parts and they deemed the engine bad so they replaced it with a new one. The new engine started to make the same weird noises.

Incident date: Sep 8, 2026

Engine I believe The truck died while I was doing 78 MPH on the highway Dashboard stated “shift into neutral and press start” I pulled to the side of the road and did what it stated and it would not crank over. I also put it in park turned the vehicle off and back on to try to start it. The l... Read more

Incident date: Aug 31, 2026

XXX 2021 GMC Seria 108,339 miles driving home from [XXX] in town and out of nowhere the lights on the dash light up I saw it say adaptive steering and something breaking. There was a lot going on as the steering was rapidly shaking limited breaking while trying to avoid a collision. The engine start... Read more

Incident date: Aug 31, 2026

Incident date: Sep 1, 2026

Catastrophic Engine Failure due to Lifter Failure at approximately 51,000 miles driven. This has been confirmed by the dealership and reported/escalated to General Motors. The truck is at the dealership for repairs. General Motors offered to cover 65% of the repair as a Goodwill sign. As the 60K p... Read more

Incident date: Aug 31, 2026

Incident date: Sep 8, 2026

Catastrophic engine failure at 77357 miles. I went to the local GM dealer and my VIN is not in the L87 engine recall. Not sure how to repair my truck , but feel like the engine should not have locked up with such low miles, and I done constant engine maintenance , meaning oil changes every 5K mile... Read more

Incident date: Sep 1, 2026

Coolant Control Valve failure. This vehicle year is included in a GM bulletin that extends the Coolant Control Valve replacement coverage to 150K miles due to a faulty design. My is valve failing exactly as described in the bulletin and GM will not cover the replacement due to my vin number. The veh... Read more

Incident date: Jun 12, 2026

Transmission failed, Value Body is listed by dealer as the cause. GMC is saying that my vehicle is not part of the recall, even though it is part of the same model, same years as well as the same problem, the value body on the transmission. See estimate from dealership Tucks GMC Hudson, MA TRANS... Read more

Incident date: Jun 12, 2026

Incident date: Sep 3, 2026

I was notified my lifters in my 6.2 L V8 would need to be inspected for any defects. When I purchased my vehicle from Car Max here in Jackson, MS, I received a notification from the dashboard that the engine oil was low and to add oil. I turned around and took it back to the dealership as soon as po... Read more

Incident date: Apr 29, 2026

Lifter locked up causing bent push rod. This situation caused truck to strand the driver without warning. Truck needed to be towed. This repair was performed by the dealership and is a known issue with 6.2 L engine.

Incident date: Mar 2, 2026

Loss of power, had engine repaired, replaced passenger side head and cylinder. Now drivers side is having the same issue.

Incident date: May 15, 2024

Transmission stopped at 29,000 miles, engine died and was replaced at 32,000 miles

Incident date: May 15, 2024

Transmission stopped at 29,000 miles, engine died and was replaced at 32,000 miles

Incident date: Aug 1, 2026

Cam Shaft and Lifter failure. Lifters were replaced 3 times

Incident date: Jun 19, 2026

I had the L87 recall completed, and the vehicle passed inspection. The dealership completed the required protocol and replaced the engine oil with 0W-40. Approximately 6,000 miles later, while traveling at about 75 mph and six hours from home, I experienced a brief loss of power followed by an imme... Read more

Incident date: Feb 23, 2026

2021 GMC Sierra 1500 equipped with 6.2L L87 engine. At approximately 97,000 miles, the engine developed a significant knocking noise. I immediately took the vehicle to an authorized GMC dealership for diagnosis. The dealer determined that the engine required replacement but advised that my VIN was n... Read more

Incident date: Mar 25, 2026

My vehicle is on a recall list. Took it to the dealership for engine vibration test. They changed oil and put on a new cap. My engine blew up a couple weeks later. They replaced my motor. It blew up on the mechanics test drive. I'm now waiting on my 3rd motor. They have had it for over 5 months now... Read more

Incident date: Aug 28, 2026

Driving on the highway lost proportion/acceleration, loud knocking coming from the engine

Incident date: Jul 25, 2026

The contact owns a 2021 GMC Sierra 1500. The contact stated that while driving at 60 MPH, the vehicle began to shake uncontrollably. A knocking sound was heard from the engine, and the vehicle entered limp mode. No warning lights illuminated. The contact was able to coast the vehicle to the residenc... Read more

Incident date: Jul 25, 2026

Incident date: Jul 16, 2024

Rear wheel lock up. Very unsafe. I am on my 3rd valve body for my transmission. GM doesn’t want to replace transmission but will warranty for 150k miles. I bumped a semi during one of my lock ups.

Incident date: Aug 15, 2026

The contact owns a 2021 GMC Sierra 1500. The contact stated that while driving approximately 25 MPH near the residence with the contact's daughter as a passenger, the vehicle experienced a complete loss of motive power when depressing the accelerator pedal. Several unspecified warning lights illumin... Read more

Incident date: Jun 1, 2024

The contact owns a 2021 GMC Sierra 1500. The contact stated that the vehicle was experiencing excessive oil consumption. The low oil level was observed, and the oil warning light illuminated. The vehicle was previously serviced at the dealer, where it was discovered that the oil was 3 quarts low at ... Read more

Incident date: Oct 1, 2025

For close to one year, there feels like a catch, grind, stall, or slight shake, mostly while the vehicle is shifting gears, made worse or noticed more by higher speeds like driving on the highway vs. slow city streets. It's difficult to explain or assess so not sure if it is the engine or transmissi... Read more

Incident date: Aug 7, 2026

While driving down an isolated 2 lane road in West Texas, the engine in my 2021 GMC Sierra 1500 began making knocking sounds and vibrating badly. The truck's acceleration was extremely sluggish and the vibration worsened at slow speeds. I was able to slowly make my way back towards a dealership, w... Read more

Incident date: Oct 1, 2025

Incident date: May 1, 2026

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The engine oil consumption system/engine is experiencing excessive oil consumption. My 2021 GMC Sierra is equipped with the 6.2L engine, and the engine is consuming oil at a rate that I believe is a... Read more

Incident date: Mar 25, 2026

While driving my son to school we were driving 45 mph and the entire engine shut off and lost all power. Engine would not restart. Took it to the dealer and was told the engine was dead.

Incident date: Jul 19, 2026

I purchased this truck from a used car dealer. It had received the fix in January this year. They sold it to me I put 15,000.00 down and financed 15,000.00. I had the truck two weeks and was driving down the road to pick up some tools from a friends. I pulled from a drive way I heard a pop likei hit... Read more

Incident date: Jun 29, 2024

rear sliding window has plastic body seam that is broken allowing water to leak into the truck and cause mold and rust

Incident date: Aug 4, 2026

The contact owns a 2023 Hyundai Ioniq 5. The contact stated that while driving on the freeway, the vehicle shut off unexpectedly. The vehicle was coasted to the side of the road and parked. Moments later, the vehicle was restarted, and the vehicle drove normally. The contact stated that the failure ... Read more

Incident date: May 29, 2026

Drive train control module & actuator replaced at less than 75,000 miles

Incident date: Aug 3, 2026

I was driving home from the store like 4 blocks away and on the road there’s dip n the road you can’t avoid it so after i drive over it the airbag light comes on with hitting anything.

Incident date: Aug 11, 2026

My 2024 Jeep Wagoneer S has experienced repeated electrical and drivability failures. Most recently, while driving at approximately 16,500 miles, the vehicle displayed “Service Electric Vehicle System” followed by “Stop Safely – Vehicle Will Shut Off Soon.” The warning appeared while the v... Read more

Incident date: Jul 15, 2026

Throw out bearing leak, resulting in excessive loss of brake fluid and potential for reduced braking ability. Low brake fluid warning light illuminated and was reported to Suburban Hyundai of Troy around 6,000 miles and again around 10,000 miles. Dealer confirmed leak was occurring at throw out bear... Read more

Incident date: Jun 12, 2026

went to put car in Park and it started to roll away. also now the car will not start i have a message that says engine is warming to start.

Incident date: Jul 30, 2026

Travel Assist Not Available warning chime several times while driving. This has been back to the dealer 3 or more times, steering wheel replaced, software updates and still this along with screen blackouts, steering wheel heater coming on without prompting, audio failure, backup camera not always f... Read more

Incident date: Oct 11, 2025

Sudden catastrophic drive train failure while driving. Car stopped instantly and was totally immobilized. It had to be dragged onto a flatbed tow truck. It is at dealership now for evaluation.

Incident date: Oct 11, 2025

The contact's husband owned a 2024 Chevrolet Silverado 2500. The contact stated that while driving approximately 54 MPH, the steering wheel jerked to the left and sent the vehicle over onto the opposite side of the road, where the vehicle struck a steel electric pole. The contact stated that the two... Read more

Crash 1 injured

Incident date: Jul 17, 2026

When the 03 Ford F350 dually, is placed in Park, it will just roll away!

Incident date: Jul 22, 2026

What happened: On [early July 2026], while towing a cargo trailer at low speed, the electric parking brake engaged unexpectedly. The brake continued to engage repeatedly throughout the duration of travel. Eventually, the parking brake circuit lost power entirely, which is when the repeated engageme... Read more

Incident date: Jul 22, 2026

Got recalls notice but the local dealership in st george SC (family ford) told me they wont do the brake or fuel injector recall until i have issues so i guess until my car catches on fire with my kids in it then they will do something

Incident date: Jun 29, 2026

My 2024 Kia Seltos (leased, approximately 19,800 miles) received an over-the-air (OTA) software update on [07/03/2026]. The vehicle's screen prompted me to approve the update and stated it would complete with the ignition off. I approved it and exited the vehicle as instructed by Kia's on-screen dir... Read more

Incident date: Jul 16, 2026

The metal cables on the car seat that attach it to base, one of them is fraying. I noticed this today when I brought the car seat inside to remove the car seat cover to wash.

Incident date: Jul 16, 2026

The metal cables on the car seat that attach it to base, one of them is fraying. I noticed this today when I brought the car seat inside to remove the car seat cover to wash.

Incident date: Jul 16, 2026

The metal cables on the car seat that attach it to base, one of them is fraying. I noticed this today when I brought the car seat inside to remove the car seat cover to wash.

Incident date: Jun 25, 2026

The contact owns a 2021 Jeep Gladiator. The contact received notification of NHTSA Campaign Number: 26V363000 (Steering). The vehicle was taken to the dealer and the vehicle was inspected, and the contact was informed that the vehicle had passed the inspection. The contact was advised to continue to... Read more

Showing 50 of 773 complaints.

NHTSA Safety Ratings, 2021 GMC SIERRA 1500

2021 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, 2021 GMC SIERRA 1500

1,597 manufacturer communications from 782 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
060000 ENGINE AND ENGINE COOLING	236
350000 EQUIPMENT	220
110000 ELECTRICAL SYSTEM	209
100000 POWER TRAIN	123
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL	60
060000 ENGINE (PWS)	51
160000 STRUCTURE	49
280000 BACK OVER PREVENTION	42

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 program the TCM and replace the control valve body if the conditions are found to be the cause of the failure of the valve body.

100000 POWER TRAIN

This technical bulletin provides a procedure to program the TCM and replace the control valve body if the conditions are found to be the cause of the failure of the valve body.

353000 EQUIPMENT:ELECTRICAL

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.

160000 STRUCTURE

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

110000 ELECTRICAL SYSTEM

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).

118000 ELECTRICAL SYSTEM:SOFTWARE

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.

350000 EQUIPMENT

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.

110000 ELECTRICAL SYSTEM

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.

353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

350000 EQUIPMENT

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

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 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.

100000 POWER TRAIN

This technical bulletin provides a procedure to program the TCM and replace the control valve body if the conditions are found to be the cause of the failure you the valve body.

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to program the TCM and replace the control valve body if the conditions are found to be the cause of the failure you the valve body.

045200 SERVICE BRAKES, AIR:DISC:PADS

This Preliminary information communicates an issue with premature brake pad life and engineering is working on release new pad lining material.

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

350000 EQUIPMENT

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

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 informational bulletin provides information for dealers/technicians on Body Control Module Programming due to Window Motor Changes Related to Microprocessor Shortage.

110000 ELECTRICAL SYSTEM

This informational bulletin provides information for dealers/technicians on Body Control Module Programming due to Window Motor Changes Related to Microprocessor Shortage.

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

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.

132000 VISIBILITY:GLASS, SIDE/REAR

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

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 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

070000 FUEL SYSTEM, GASOLINE

This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.

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.

030000 BRAKES (PWS)

This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.

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.

100000 POWER TRAIN

This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.

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.

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.

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 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 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 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.

118420 ELECTRICAL SYSTEM:ADAS:BLINDSPOT: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.

118410 ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SOFTWARE

273000 LANE DEPARTURE: BLIND SPOT DETECTION

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

118520 ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS

106000 POWER TRAIN:AXLE ASSEMBLY

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

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".

118510 ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE

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

100000 POWER TRAIN

110000 ELECTRICAL SYSTEM

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.

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.

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.

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.

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

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.

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 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

100000 POWER TRAIN

353000 EQUIPMENT:ELECTRICAL

This Preliminary information communicates an issue where the vehicles wireless charger no longer works with certain ISO updates on Apple 15 phones and advises customer to update their phone to the lastest ISO update.

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.

350000 EQUIPMENT

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

110000 ELECTRICAL SYSTEM

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

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.

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

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

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

060000 ENGINE AND ENGINE COOLING

This informational bulletin provides Changes to the Automatic Stop/Start feature for Certain 2021 Escalade models, Silverado 1500, Suburban, Tahoe, Sierra 1500, Yukon models Equipped with RPO NSS.

Showing 100 of 1,597 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 (current)	7	773
2020	12	687	View
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

2021 GMC SIERRA 1500

Complaint Statistics

Top Reported Components

NHTSA Safety Ratings, 2021 GMC SIERRA 1500

Safety Technology

Technical Service Bulletins, 2021 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