2020 GMC TERRAIN

2 recalls, 295 complaints - 1,046 TSBs - 5/5 safety rating

CHILD SEAT:VEHICLE LATCH ANCHOR

Defect Description

General Motors, LLC (GM) is recalling certain 2020-2023 Chevrolet Equinox and GMC Terrain vehicles. The four rear-seat lower child seat LATCH anchorage bars may have excessive powder coating, which could prevent a child seat from being installed with the anchorage bars. As such, these vehicles fai... Read more

Consequence

The inability to install a child seat with the LATCH anchorage bars could result in an unsecured child seat, increasing the risk of injury in a crash.

Remedy

Owners are advised to install child seats using the vehicle's rear seat belts until the remedy is complete. Dealers will inspect the latch anchorage bars, and remove and replace the finish, as necessary, free of charge. Owner notification letters were mailed June 2, 2023. Owners may contact Chevr... Read more

668,187 vehicles affected

Manufacturer: General Motors, LLC

POWER TRAIN:AUTOMATIC TRANSMISSION

Defect Description

General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. Th... Read more

Consequence

Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.

Remedy

GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet custom... Read more

194,105 vehicles affected

Manufacturer: General Motors LLC

Complaint Statistics

295 total complaints 9 crashes 5 fires 4 injuries

Top Reported Components

Component	Complaints
ENGINE	41
ELECTRICAL SYSTEM	39
UNKNOWN OR OTHER	32
POWER TRAIN	26
SERVICE BRAKES	24
FUEL/PROPULSION SYSTEM	18
STEERING	15
VEHICLE SPEED CONTROL	12
AIR BAGS	8
EXTERIOR LIGHTING	7

Incident date: Jul 25, 2026

While driving home from work my 2020 GMC Terrain stalled and turned off. I was on a very busy 2 lane road, crossing a intersection in a tourist area in [XXX]. This could have be come fatal very easily. I was able to get the car started and Home but had to take it very slow. Next day we weren't able ... Read more

Incident date: Aug 6, 2026

When the gas is mashed to accelerate, the car does not want to go. It has left me stranded and rolling in the middle of traffic. I am scared to drive it.

Incident date: Jul 30, 2026

Because of the intentional failure of GMC and there promise of “We are Professional Grade”, I almost got plowed down by a semi when the car began to quit on the highway going 60. After pulling into the next driveway, which happened to be a Parker’s Kitchen, and ending up on the curb spot, than... Read more

Incident date: Jul 30, 2026

Incident date: Jul 20, 2026

While driving north in interstate 79, the brakes became very hard to push making it difficult to stop the vehicle. We got off the interstate and proceeded back home. The brakes were as hard as a rock to push and it was difficult to stop the vehicle. When this happened, the check engine light came... Read more

Incident date: Jul 9, 2026

Vacuum pump failure causing sudden and unexpected hard brake pedal and loss of braking coming off the highway. Ended up catastrophic engine failure. This is the SECOND incident with this vehicle of the exact same problem. GMC refuses to address this issue and continues to risk the lives of their cus... Read more

Incident date: Jul 9, 2026

Incident date: Jul 17, 2026

The back passenger seat exploded and caught fire, burning the back of the seat in front and burning the ceilings. Inside the whole vehicle is black from smoke damage. Incident assessed by fire marshal who has ruled as electrical issue. No warning lights or systems displayed anything.

Fire

Incident date: Jul 17, 2026

Fire

Incident date: Jul 17, 2026

Fire

Incident date: Jul 16, 2026

I was traveling down the interstate at 70mph. Traffic began slowing ahead of me. I hit the brakes and the pedal was rock hard and I could not stop my vehicle safely. Service brake assist light flashed momentarily. Ended up being the vacuum pump. I was told by the dealership I had it towed to that th... Read more

Incident date: Jul 9, 2026

I work full time in an auto body repair shop and a fire chief. I am coming across more and more white GM vehicles where the paint is not stuck where the windshield is glued in. A couple real hard pushes and the windshield will about come completely out.

Incident date: Apr 20, 2026

When driving my car when I am at a certain speed whether 60 or above on the highway, when I start to decelerate the car starts to shake. It is often as I drive daily. The FCW is constantly coming on saying manufacturer failure check manual. Also since I cannot update my maps as the disc is no long... Read more

Incident date: Jun 15, 2026

Toyota South Atlanta in Morrow, Georgia, released my vehicle after a factory warranty repair for transmission failure. However, they failed to properly complete or verify the repair. The dashboard is now throwing critical error codes stating 'A malfunction in the electronic control of the engine, th... Read more

Incident date: Jun 15, 2026

Incident date: May 23, 2026

The contact owns a 2020 Ford Expedition. The contact stated that while depressing the lock panel with the numbers on the driver’s side door, the seat unintendedly moved forward, and the seat belt retracted, and the driver was squeezed in the seat. The contact turned off the vehicle and seat belt t... Read more

Incident date: Jun 7, 2026

Running 4430 MMI/MIB3 software (that was release almost 2 years ago) and now have stereo EQ settings that reset on their own, personalized favorites that delete on their own, and other personalization settings that reset on their own. Happens every 6-24 hours if settings are adjusted. Audi knows abo... Read more

Incident date: Jun 3, 2026

vehicle battery failure

Incident date: Jun 3, 2026

vehicle battery failure

Incident date: Jun 7, 2026

The vehicle has experienced repeated failures involving the gear shifter system, electrical system, battery system, and vehicle drive mode controls. The vehicle is available for inspection upon request. The most serious incident occurred when the vehicle unexpectedly entered Off-Road mode without a... Read more

Incident date: May 30, 2026

The contact owns a 2024 Hyundai Elantra. The contact stated that while driving 40 MPH, the tachometer, the odometer, and the power steering became inoperable, nearly causing the contact to drive off the road. Additionally, the turn signal lights were not functioning. All the warning lights were illu... Read more

Incident date: Jun 7, 2026

Cylinder Coolant Intrusion I took my vehicle to Warren/ Sheldon auto repair shop in canton, MI They did a diagnostic test on it, they told me they found coolant in the engine, and I would need a brand new engine. If I would of not taken the vehicle to the auto shop, the vehicle may have caught o... Read more

Incident date: Jun 2, 2026

Moonroof spontaneously exploded while driving; shards of glass fell all over me (head, face, arms, back, legs), and throughout the vehicle. Nothing hit my vehicle, no road debris.

Incident date: Jun 2, 2026

This vehicle has chronic clicking when turning , when taken to a mechnanic i was informed the CV Axles both were torn and that it was a common issue for the 22 ford mavericks and they issue replacements for free. However when it comes to this they don’t cover it. The issue is still present and lef... Read more

Incident date: May 22, 2026

Transmission wouldnt shift. Sensor in car is causing issue, code is N 202321840

Incident date: May 22, 2026

Transmission wouldnt shift. Sensor in car is causing issue, code is N 202321840

Incident date: May 18, 2026

I am submitting this complaint regarding a serious and dangerous brake failure involving my 2020 GMC Terrain SLT with approximately 150,000 miles. While driving, the vehicle suddenly experienced a vacuum pump failure that caused a severe loss of braking ability with no warning beforehand. The brake... Read more

Incident date: May 18, 2026

Incident date: May 1, 2026

The vacuum pump for the brake system failed catastrophically while driving causing damage to the brake booster and lodging metal debree into the engine components. This happened at less than 100k miles on a 2020 gmc terrain.

Incident date: Feb 10, 2026

The contact owns a 2025 Kia Sorento. The contact stated that an unknown, sticky fluid had spilled through the slits of the mode selector which was a dial that can be selected for driving during different road conditions. Upon start of the vehicle, the 4WD mode selector would intermittently flash on ... Read more

Incident date: Apr 22, 2026

A and b trim pillar pieces are loose and I just lost one going down the interstate. It is also causing my car to leak when it rains. Recall was issued over a year ago and still no parts available to fix it.

Incident date: Apr 21, 2026

My 2010 Prius has experienced the following error codes: C12341 and C1391, prompting the dealer to recommend replacing the brake booster assembly and master cylinder for $3938.89. This is a known issue with this vehicle and a Customer Support Program (CSP) was issued back in 2018, stating that if th... Read more

Incident date: Apr 21, 2026

On April 14, 2026, my 2019 Hyundai Sonata was parked at a retail store parking lot. Returning from the store, I attempted to start the car, and it did not start. I attempted to start it again, and I saw smoke coming out from under the hood. I immediately exited the vehicle and opened the hood. I saw... Read more

Fire

Incident date: Apr 16, 2026

The foam in the head ready broke

Incident date: Dec 15, 2025

I am reporting unresolved safety recalls and unreasonable delay in repair for my 2023 Ford Bronco (VIN: [XXX] ). This vehicle currently has two open safety recalls issued by Ford Motor Company • NHTSA Recall 25V721 (issued October 2025) – seat frame defect that may increase injur... Read more

Incident date: Sep 1, 2022

1- at 71,000 miles in 2022 brake vacuum pump “exploded” broke into many small pieces in the middle of driving. Causing brakes to lock. Brake pedal was brick hard. Hard to maneuver the car out of traffic without causing a collision. Luckily car was not being driven at high speed. At time of repai... Read more

Incident date: Sep 1, 2022

Without any Waring Lights the car goes into " Limp Mode " .ON turnpike roads with Speed Limits at 70 MPH and with some sections with no shoulder to get off the highway this is very dangerous .

Incident date: Sep 1, 2022

Brake assist light came on and brake pedal became stiff/hard to push. Vehicle struggled to brake. Replaced brake pads and checked brake fluid. Brakes still inoperable. Check engine light came on for vacuum pump. When replacing pump, metal shards and pieces were falling out when original was removed.... Read more

Incident date: Jan 26, 2026

⸻ My 2022 Nissan Pathfinder experienced a catastrophic engine failure at approximately 70,000 miles. The vehicle suddenly developed severe engine knocking and required a complete engine replacement. There were no engine warning lights or oil pressure warning lights prior to the failure. The vehi... Read more

Incident date: Jun 2, 2023

Unknown. The transmission is kicking really bad. There are recalls on other vehicles similar to ours that are having the same issue. It has been doing this for a while now. It shifts hard from 1st to 2nd gear and when coming to a complete stop it also jerks. Also at times the check engine light com... Read more

Incident date: Mar 4, 2026

I was driving 55 miles an hour on an Expressway. And suddenly my truck just shut off.The brake became very hard unable to break very scary situation for me and my children. Engine power was reduced and would not start, many errors came up. The vacuum pump failed, which also caused the cam shafts to ... Read more

Incident date: Mar 4, 2026

The oil cooler line is leaking, and the vehicle is available for inspection upon request. This safety concern is addressed under GM Program N192220080. The Hazard is Present: The leak is active. The risk of total line detachment and engine seizure is the same in Texas as it is in Alaska (the US stat... Read more

Incident date: Mar 4, 2026

Incident date: Feb 21, 2026

The contact owns a 2021 Kia K5. The contact stated that the check engine warning light remained illuminated with DTC: P0471 displayed. The vehicle was included in NHTSA Campaign Number: 25V794000 (Fuel System, Gasoline) and was taken to the dealer for the recall repair where the dealer replaced the ... Read more

Incident date: Jan 9, 2026

The electric power steering gets notchy and sticks instead of smooth turning. This causes the car to drift left and right in the lane. The hotter the day and longer the drive, the worse the problem gets.

Incident date: Jan 22, 2026

After few hours of research I found a part number to order replacement fuel filter required for use from Recall 22v-406. After passed onto by FCA and reaching out to Mopar who passed me onto local dealer and research on various forums I found a part number 68632011AA for the fuel filter so I thought... Read more

Incident date: Jul 14, 2022

At 9,000 miles the check engine light came on. We took the van to the dealership and there was metal in the engine and the engine needs to be replaced.

Incident date: Jul 14, 2022

Immediately after purchase, the Passenger Airbag warning light illuminated. An authorized Kia dealer confirmed that the airbag system is defective and requires repair under warranty. Despite this confirmation, more than five (5) months have passed without repair, citing parts unavailability. I am o... Read more

Incident date: Jul 14, 2022

ICCU failed. ICCU fuse blew limiting power making car unsafe to drive.

Showing 50 of 295 complaints.

NHTSA Safety Ratings, 2020 GMC TERRAIN

2020 GMC Terrain SUV AWD

Category	Rating
Overall Rating	5 / 5 ★★★★★
Frontal Crash	5 / 5 ★★★★★
Frontal Crash, Driver	5 / 5 ★★★★★
Frontal Crash, Passenger	5 / 5 ★★★★★
Side Crash	5 / 5 ★★★★★
Side Crash, Driver	5 / 5 ★★★★★
Side Crash, Passenger	5 / 5 ★★★★★
Rollover	4 / 5 ★★★★☆
Rollover Risk	16.4%

Safety Technology

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

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 TERRAIN

1,046 manufacturer communications from 514 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
350000 EQUIPMENT	193
110000 ELECTRICAL SYSTEM	135
060000 ENGINE AND ENGINE COOLING	109
100000 POWER TRAIN	72
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL	66
060000 ENGINE (PWS)	49
160000 STRUCTURE	39
356000 EQUIPMENT ADAPTIVE/MOBILITY	36

200000 WHEELS

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

350000 EQUIPMENT

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.

110000 ELECTRICAL SYSTEM

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

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.

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).

280000 BACK OVER PREVENTION

This preliminary information discusses potential camera functional issues if the camera is not properly programmed.

160000 STRUCTURE

This technical bulletin provides repair information to correct a customer concern of an interior boom noise heard while driving low speeds in high gear.

100000 POWER TRAIN

This technical bulletin provides repair information to correct a customer concern of an interior boom noise heard while driving low speeds in high gear.

350000 EQUIPMENT

This preliminary information discusses a condition that may arise from the drivers window switch sending an errant message causing the vehicle to enter manual fob learn mode.

110000 ELECTRICAL SYSTEM

This preliminary information discusses a condition that may arise from the drivers window switch sending an errant message causing the vehicle to enter manual fob learn mode.

350000 EQUIPMENT

This service bulletin provides information on No Heated Seats or Heated Steering Wheel During Remote Start.

220000 SEATS

This service bulletin provides information on No Heated Seats or Heated Steering Wheel During Remote Start.

110000 ELECTRICAL SYSTEM

This service bulletin provides information on No Heated Seats or Heated Steering Wheel During Remote Start.

010000 STEERING

This service bulletin provides information on No Heated Seats or Heated Steering Wheel During Remote Start.

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.

350000 EQUIPMENT

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

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.

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.

980000 UNKNOWN OR OTHER

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

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.

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".

160000 STRUCTURE

This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with DTC P0300 and/or P0299/P2227.

110000 ELECTRICAL SYSTEM

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.

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.

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

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.

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

220000 SEATS

This technical bulletin provides a procedure to replace the radiator brackets if found loose to correct a customer concern of excessive vibration in the steering wheel or seat or floor at idle or at low to moderate speeds.

060000 ENGINE AND ENGINE COOLING

010000 STEERING

100000 POWER TRAIN

This service bulletin provides information on a normal characteristic of a transmission that will not shift into overdrive range during cold ambient temperatures.

160000 STRUCTURE

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

160000 STRUCTURE

This technical bulletin provides repair information to correct a customer concern of finding a water leak inside the interior of the vehicle.

356000 EQUIPMENT ADAPTIVE/MOBILITY

This service bulletin provides a procedure to check for water intrusion at the door electrical connectors and repair the wiring if found the cause of customer concerns of Power Windows and/or Mirrors Inoperative, Power Seat Movement Inopera

220000 SEATS

160000 STRUCTURE

110000 ELECTRICAL SYSTEM

350000 EQUIPMENT

This technical bulletin provides a procedure for air conditioning refrigerant desiccant replacement due to A/C Not Cooling or refrigerant loss.

138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

This technical bulletin provides a procedure for air conditioning refrigerant desiccant replacement due to A/C Not Cooling or refrigerant loss.

284300 BACK OVER PREVENTION: SENSING SYSTEM: RADAR

This technical bulletin provides a procedure to add reflective butyl tape to the rear driver's side module to correct the radar reflection being detected and triggering the false alerts.

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to add reflective butyl tape to the rear driver's side module to correct the radar reflection being detected and triggering the false alerts.

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.

100000 POWER TRAIN

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

060000 ENGINE AND ENGINE COOLING

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

120000 EXTERIOR LIGHTING

This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.

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

110000 ELECTRICAL SYSTEM

This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).

030000 BRAKES (PWS)

This service bulletin provides a procedure to locate and repair the engine wiring harness to correct customer concerns of multiple electrical issues.

110000 ELECTRICAL SYSTEM

This service bulletin provides a procedure to locate and repair the engine wiring harness to correct customer concerns of multiple electrical issues.

100000 POWER TRAIN

This service bulletin provides a procedure to locate and repair the engine wiring harness to correct customer concerns of multiple electrical issues.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a procedure to locate and repair the engine wiring harness to correct customer concerns of multiple electrical issues.

251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

This service bulletin provides a procedure to locate and repair the engine wiring harness to correct customer concerns of multiple electrical issues.

350000 EQUIPMENT

This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking

110220 ELECTRICAL SYSTEM:HAND HEATER:WIRING HARNESS

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

980000 UNKNOWN OR OTHER

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

350000 EQUIPMENT

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

060000 ENGINE AND ENGINE COOLING

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

060000 ENGINE AND ENGINE COOLING

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

110000 ELECTRICAL SYSTEM

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

120000 EXTERIOR LIGHTING

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

350000 EQUIPMENT

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

100000 POWER TRAIN

This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.

110000 ELECTRICAL SYSTEM

This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.

350000 EQUIPMENT

This service bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925 00, B3926 00, B3927 00, B3928 00 Set.

350000 EQUIPMENT

This technical bulletin provides repair information to correct a customer concern of Vehicle Will Not Lock and Unlock (Loss of Active Functions) Crank or Start (Loss of Passive Functions) with DTC P0513 Set.

110000 ELECTRICAL SYSTEM

020000 SUSPENSION

This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the

260000 FORWARD COLLISION AVOIDANCE

060000 ENGINE AND ENGINE COOLING

160000 STRUCTURE

350000 EQUIPMENT

020000 SUSPENSION

This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

200000 WHEELS

This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

010000 STEERING

This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

100000 POWER TRAIN

This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

200000 WHEELS

This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).

110000 ELECTRICAL SYSTEM

Showing 100 of 1,046 bulletins.

GMC TERRAIN - All Years Overview

Complete safety history for the GMC TERRAIN across all model years (2010, 2026).

40 Total Recalls

4,340 Total Complaints

0 Investigations

212 Reported Crashes

67 Reported Fires

5 Reported Deaths

GMC TERRAIN - Year by Year

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

Year	Recalls	Complaints
2026	1	36	View
2025	0	26	View
2024	1	74	View
2023	2	69	View
2022	2	70	View
2021	2	53	View
2020 (current)	2	295
2019	3	292	View
2018	5	324	View
2017	1	181	View
2016	2	182	View
2015	3	385	View
2014	2	385	View
2013	3	484	View
2012	4	500	View
2011	4	557	View
2010	3	427	View

Other GMC Models

Model	Recalls	Complaints
SIERRA 1500	233	10,607	View
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

Vehicle Safety

Consumer Safety

Infrastructure

Public Health

2020 GMC TERRAIN

Complaint Statistics

Top Reported Components

NHTSA Safety Ratings, 2020 GMC TERRAIN

Safety Technology

Technical Service Bulletins, 2020 GMC TERRAIN

Most Affected Components

GMC TERRAIN - All Years Overview

GMC TERRAIN - Year by Year

Other GMC Models