Chevrolet Suburban Complaints

452 consumer complaints on file.

#11726410March 23, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2022 Chevrolet Suburban. The contact stated that while changing the oil and filter, there were metal shavings found in the oil filter. The vehicle was not taken to the dealer; however, the dealer was notified of the failure over the phone. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 115,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11725782March 20, 2026
POWER TRAIN, STEERING, ELECTRICAL SYSTEM
I am submitting this complaint to report a serious safety issue involving my 2021 Chevrolet Suburban equipped with the 3.0L Duramax diesel engine. The vehicle has experienced a recurring problem related to the engine wiring harness. While driving, the vehicle will unexpectedly stall without warning. At the same time, there is an immediate loss of power steering assist, significantly reducing the ability to safely control the vehicle. This creates a dangerous situation, especially at highway speeds or in traffic. The failure appears to be linked to a defect or malfunction in the engine wiring harness, which may be causing intermittent electrical interruptions to critical engine systems. There were no prior warning signs sufficient to prevent the incident. This issue poses a substantial safety risk not only to the driver and passengers but also to other motorists. Sudden engine shutdown combined with loss of steering assist increases the likelihood of a crash. I believe this may be a systemic defect affecting other vehicles of the same model and configuration. I urge the National Highway Traffic Safety Administration to investigate this issue and determine whether a recall should be issued. Vehicle Information: Make: Chevrolet Model: Suburban Year: 2021 Engine: 3.0L Duramax Diesel
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11725419March 18, 2026
ENGINE
camshaft failure cylinder 7
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724686March 16, 2026
POWER TRAIN
Check engine light with rough shifting and vehicle wouldn’t go in reverse. For safety reasons we had the vehicle towed to our local Chevy Dealership. Transmission needed a valve body rebuild. This is a known issue with this transmission but our VIN wasn’t under that recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724367March 14, 2026
ENGINE, POWER TRAIN
On Friday, March 13, 2026, while traveling at approximately 60 mph on the highway, my 2021 Chevrolet Suburban equipped with an L87 6.2L V8 engine experienced a sudden and complete loss of motive power. The failure sequence began with a dashboard warning prompting me to "press the start button again," followed immediately by the vehicle shifting into neutral without any driver input. Despite repeatedly pressing the accelerator, the vehicle continued to decelerate and could not re-engage drive. A second dashboard warning displaying "engine recall" then appeared mid-incident. Subsequently, the rear wheels locked, forcing the vehicle to coast to a complete stop on the hard shoulder without any brake input required from the driver. Upon coming to a full stop, the start button continued flashing with repeated prompts to press it, the vehicle lock emblem illuminated on the dashboard, and the vehicle became fully and mechanically immobile, unable to shift out of neutral or transition into any other gear. The engine could not power the vehicle at all. My safety and the safety of other motorists were directly and seriously endangered, as the failure occurred without warning in the middle lane of an active highway at highway speed, leaving the vehicle unable to maneuver or accelerate out of harm's way. A responding police officer confirmed the road hazard on scene and remained present to protect the vehicle and occupants while we awaited assistance. The AAA tow truck operator independently concurred upon arrival. The vehicle was transported to Classic Chevrolet, Grapevine, TX, the same day and is currently awaiting full technical inspection by the dealership's service team; an official mechanical diagnosis remains pending. The dealership service advisor has verbally confirmed awareness of an active engine and powertrain/transmission recall affecting this vehicle. The failed component — the L87 6.2L V8 engine and associated drivetrain — is available for inspection
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724006March 12, 2026
ENGINE
While driving the Engine warning light, service ESC light, and collision light all came on and an engine knock started. I also experienced a loss of power at the same time. Car was taken to local Chevy dealership for evaluation and repair. Dealership advised that they dropped the oil and found metal shavings in the oil. After further investigation, we were advised that it was a crankshaft connecting rod failure. We have an extended warranty and were waiting to hear back on repair coverage. GM denied the repair as this vehicle is not part of the active recall. Our warranty company also denied the repair stating we did not have adequate records of oil changes. Receipts for oil and filters were provided.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723836March 12, 2026
VEHICLE SPEED CONTROL, ENGINE AND ENGINE COOLING
See attached document for complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723503March 11, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2021 Chevrolet Suburban. The contact stated that while driving 35 MPH on the highway, the vehicle stalled. The contact pulled over to the side of the road. There was no warning light illuminated. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was repaired out-of-pocket. The contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The manufacturer was notified of the failure and informed the contact that the VIN was not under recall. The failure mileage was approximately 92,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723167March 9, 2026
POWER TRAIN
Upon stepping on brakes, the car shifts into Neutral and says “press start Button again.” This happened to me 2x now.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722933March 9, 2026
UNKNOWN OR OTHER, STRUCTURE:BODY
Sun roof exploded while driving. Temps were not extreme, there were no significant pressure changes. Sun roof had no prior damage. Looking online multiple people reported the sun roof exploding on 2023 tahoes and suburbans.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722922March 9, 2026
POWER TRAIN
Rear Axle is grinding. Took vehicle into dealer and it is the well documented rear axle issue but this vehicle is not included in a recall. The differential fluid was replaced and figure 8s were done but there is still grinding. The rear axle also drags at times when in auto 4wd. The dealer said the next step would be to replace the axle. This is the issue: Differential Noise/Failure: Reports indicate a rubbing noise while turning, often attributed to the rear differential. In some cases, the entire rear differential has required replacement.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722779March 8, 2026
ENGINE
In April of 2022 with 26k miles my vehicle had its first engine failure, Chevrolet dealership had to replace engine lifters due to a known engineering defect with the 2021 6.2 L87 engine. Now in late February 2026 with 80k miles my engine has locked up and requires a brand new engine replacement. For some reason, even though this is a L87 6.2L 2021 engine it is not part of the broader recall for this exact same engine failure for the same engine year and model.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722195March 5, 2026
ENGINE, ELECTRICAL SYSTEM, POWER TRAIN
In several separate unreplicable instances, the vehicle has turned off while driving, once on the highway, once on my street, once turning across heavy traffic, and others. I've almost died a couple times and I've taken it to the dealership several times, they have Not been able to find anything wrong with it and have been unable to replicate the issue. The engine has been replaced, and it was happening before and since. My 2023 is also doing the same thing.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722005March 4, 2026
ENGINE
While driving, the engine malfunctioned. There were no warning lamps, messages, or other symptoms prior to the malfunction. The vehicle has been inspected and repaired by a Chevrolet dealership.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721959March 4, 2026
SUSPENSION
Unmodified 2022 Chevrolet Suburban with 53K mi, driving 25 mph on paved county road. Without warning the upper ball joint on the right front side sheared off. There were no sounds, no bumps or grinding, truck is routinely maintained, cleaned and inspected - this was out of the blue. If we had been going faster it could have been a disaster. The dealer confirmed it is the upper ball joint. Significant mechanical damage has included the upper control arm and drive line (4wd). We are working with GM to get this repaired. It certainly seems like a Serious Safety issue. I have seen many reports of this problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721740March 3, 2026
ENGINE
Complete and sudden failure of the L87 V8 engine at 70 mph on the highway. Had to maneuver to the right shoulder and coast to a stop. Engine was seized and would not restart. Waited 4 hours on a dangerous highway for a tow truck which took the Chevy Suburban 200 miles to my home Chevrolet dealership. They have ordered a new engine but it is on backorder so no ETA. Vehicle was built 06-26-2024 and has not been recalled so Chevy says I do not get the extended warranty on the replacement engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721692March 3, 2026
POWER TRAIN
The contact owns a 2022 Chevrolet Suburban. The contact stated that while his wife was driving at an undisclosed speed, the rear wheels seized. There were several unknown warning lights illuminated. The message "Reduced Acceleration, Drive with Caution" was displayed. The contact's wife pulled into a parking lot, but the transmission failed to shift into reverse(R). The vehicle was towed to the dealer, where it was determined that the transmission control valve needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 26V085000 (Power Train); however, the VIN was not included in the recall. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 86,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721619March 3, 2026
ENGINE
Regarding a catastrophic engine failure involving my 2023 Chevrolet Suburban equipped with the 6.2L L87 engine. There is an active GM service bulletin that we never received from either Crabtree or GM. Vehicle details: • Purchased in North Carolina in 2024 • Approximately 4,000 miles at purchase (used, still under factory warranty) • Currently at approximately 60,000 miles • Within the 5yr/60k powertrain warranty at the time of failure Incident details: On Friday 2/20, the engine experienced a confirmed catastrophic failure while my wife was driving on the interstate at highway speed. The vehicle abruptly lost power, creating a significant safety hazard. She was able to maneuver to safety, but the situation presented a serious risk of injury. GM has since towed the vehicle and confirmed catastrophic engine failure. We have been provided a rental vehicle - not a comparable one either (they refuse to address that also). Given the safety exposure and warranty status, I am evaluating potential potential claims including breach of warranty, implied warranty of merchantability, and any product liability considerations. I am also interested in understanding leverage for buyback, diminished value, risk of serious injury to my wife, or extended warranty resolution. I have preserved documentation, service records, and a written account of the incident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721068February 27, 2026
ENGINE, ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL
Vehicle accelerated while driving. The RPMs gage turned red; however, the vehicle stopped in the middle of the road with other cars coming. After the vehicle came to a full stop it would not move. Finally it started moving slowly and I was able to get off the road. When the tow truck arrived the vehicle would only go forward. No reverse. Error message on dashboard picture attached
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720994February 27, 2026
SEAT BELTS
The drivers side, female end, of the seatbelt comes undone when cold. This is reproduced every single time it is cold for approximately 5 minutes of driving until the inside of the vehicle warms up. This happens with both primary divers of the vehicle. We took it to the dealership we bought it from but because there is not a current recall and they cannot reproduce the issue since our current temperature is in the 40s, they won’t replace it under warranty. No warning systems go on when this happens while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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