Chevrolet Suburban collision warning problems

Filed Oct 21, 2026 · Driver assistance, Electrical · MI

Persistent, intermittent total audio cutout disabling critical crash avoidance alerts. Failure Summary & Safety Impact: The vehicle experiences intermittent, complete failures of the audio system across all sources. When this failure occurs, all audible safety warning chimes are completely silenced—including Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, and Park Assist. This places occupants and other road users at immediate safety risk, as the driver receives no audible warning prior to an impending crash or hazard. Diagnostics & History: The issue first was brought to an authorized Chevrolet dealership for inspection and repair multiple times (first on April 29, 2026) and has not been remedied. They even replaced the radio system (through which all audio is routed) and this did not fix the issue. The vehicle remains in its original condition and is available for inspection upon request. There were no dashboard warning lamps or error messages displayed prior to or during the failure.

Filed Jun 11, 2026 · Electrical, Lights · MO

As I was driving 75 mph down the highway my collision alert flashed all my lights turned off, including my headlights and all interior lights as it was dark time and they flashed back on a couple of times until they finally stayed on. I pulled over and as I came to zero, speed, the vehicle completely shut down. It did start back up, but this is not the first time I get a light on my dash that says stability track and then everything resets and I don’t have any lights on at all after that this has been happening off and on I also have three coworkers that have the same make, and year that experienced the same problems ! My situation on the highway was very dangerous. It was pitched dark outside and I lost vision due to my lights going off at 75 mph and my steering wheel also locking up. The next time the vehicle does it I will take a video for proof. I have heard that this problem is very common in these vehicles and believe something should be done because that is a dangerous situation if I was going around a corner and my steering wheel locked up, I could easily flip my car. I have small children that’s why I have the big space but we need safety for our family.

Filed Apr 8, 2026 · Driver assistance · MD

Lane departure assist, adaptive cruise control, auto emergency braking, adaptive high beam, forward collision warning system became unresponsive while driving on highway during trip. Had to take vehicle into GM dealership for ADAS camera replacement.

Filed Dec 29, 2025 · Engine · PA

After just getting our vehicle back on 12/11/25 from our incident on 11/9/25 when my wife was driving at 70 MPH on the highway when the engine blew the first time. Approximately 1300 miles later and 15 days after we picked up the vehicle when I was merging onto the highway the vehicle had a sudden power loss and a smell that filled the cabin. We were able to drive to the next exit and while the vehicle was idling it sounded awful. The check engine light started to flash along with the TCS light and the collision warning lights. After getting to a parking lot when called OnStar to tow our vehicle to the closest dealer. I have not received any updates yet but it is very similar to what happened the first time when the engine needed replaced.

Filed Oct 31, 2025 · Engine · 97,000 miles · TX

The contact owned a 2022 Chevrolet Suburban. The contact stated that while the vehicle was parked with the engine running, the front of the vehicle began to shake violently, with a knocking sound coming from the engine compartment. The check engine, traction control, and collision warning lights were illuminated. The contact called an independent mechanic; however, the vehicle was not diagnosed or repaired. The contact later visited the dealer and was informed that the vehicle needed to be brought in for diagnostic testing. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 97,000.

Filed Jun 22, 2025 · Brakes, Driver assistance · IN · crash · 1 injury

A. The Emergency Brake system, The Anti-Collision Sensor, The vibrating Driver's seat Alert, The dashboard Collision Alert lightening......All of these gave no alert prior to the collision. B.The failure of the safety devices prevented from me from avoiding a collision that was cause by the other driver (Police report available for your peruse) C. They inspected and denied any liability for any failure of their safety devices (And my question to them is if any these are functioning properly as said, then there wouldn't be any collision ) D. Yes, inspected E. There were no waring lamps, no seat vibration, the emergency brake never ceased the car from colliding.

Filed Oct 14, 2024 · Brakes, Electrical · WA

While driving approximately 70 miles an hour and trying to switch lanes, we got a stabilitrack warning and the car shut off for a second and then came back on. the weather was nice and there was no snow or any other adverse conditions. This happened a couple more times on the ride and then when we tried to turn into a parking spot it shut off completely and we had to restart it. We turned stabilitrack off and the car was ok for a couple of short drives. Then driving late at late and we passed another car the same thing happened. Then when we tried to turn our brights on we got the same message. Then we got a brake assist message and then we got a collision alert. The headlights were flickering the rest of the drive and we couldnt use our brights. We had our 4 children in the car and it was shutting down at high speeds and very scary. I looked up our vin and it said that the recalls had been worked on but I dont remember this being done. This has never happended before this. our car would be available for inspection if needed.

Filed Jun 14, 2024 · Driver assistance · 28,000 miles · FL

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving at an undisclosed speed, the Forward Collision Avoidance system activated and abruptly applied the brakes, dramatically reducing the speed of the vehicle. Later, the contact stated that while driving at an undisclosed speed with the Adaptive Cruise Control activated, the vehicle inadvertently accelerated, requiring the contact to depress the brake pedal to avoid a collision. The vehicle returned to normal functionality, but the failure became a regular occurrence. The Forward Collision Avoidance warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the Forward Collision Avoidance warning light and the Adaptive Cruise Control module. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 28,000.

Filed Oct 2, 2023 · Driver assistance · 50,000 miles · SD

The contact owns a 2019 Chevrolet Suburban. The contact stated while driving approximately 5 MPH over a railroad crossing, the braking system erroneously activated causing the vehicle to stop abruptly. During the failure there were no vehicles or trains nearby to cause the Forward Collision Avoidance system to become activated. The contact stated that the failure had occurred several times and only at the same railroad crossing. The cause of the failure was not yet determined. The local dealer was notified of the failure and experienced the failure while on a test drive over the railroad crossing. The manufacturer was not yet contacted. The failure mileage was 50,000.

Filed Feb 3, 2023 · Driver assistance · 1,000 miles · PA

The contact owns a 2022 Chevrolet Suburban. The contact stated that after an unknown over-the-air (OTA) software update was performed, the Forward Collision alert system failed to operate. The contact was made aware of the failure while reversing the vehicle. The contact stated that the alert failed to alert her of a nearby vehicle. The vehicle was taken to the dealer, and the dealer confirmed that the Forward Collision alert system chip needed to be installed; however, the chip was on backorder. The vehicle was not repaired. The manufacturer was made aware of the failure and confirmed that there was a chip shortage. The failure mileage was approximately 1,000.