CHEVROLET Complaints

My brand new two week old 2026 Chevrolet Trailblazer LS Issue: Auto Start/Stop system failure, the engine shuts off and does not restart Description:? While stopped at traffic lights with the auto start/stop feature engaged, the engine shuts off as designed. However, when I release the brake pedal, the engine does not restart as it should. Instead, the vehicle displays a message stating “press brake to start,” and the vehicle behaves as if it has been completely turned off. This leaves the vehicle temporarily disabled in traffic and unable to move immediately when the light changes. I must press the brake and manually restart the vehicle, causing a delay and creating a safety concern, especially in intersections. This issue has occurred multiple times and appears to be related to a malfunction in the auto start/stop system. The failure to automatically restart the engine creates a risk of being stranded in active traffic and increases the likelihood of a collision. No warning lights or prior indications are given before the failure occurs. Concern:? This is a safety issue for me and my family because the vehicle does not respond as expected when attempting to accelerate from a stop and leaves me stuck in traffic unexpectedly. It is now in the shop for the second time, as I was able to record this continuous malfunction of my brand new 2026 Chevrolet Trailblazer. I get anxiety everytime I drive it. I feel I’m going to be rear ending or be involved in some type of crash. The vehicle is currently not safe to drive currently at the dealership for a second time. I had it towed each time, as I feared for my life and safety. Dealership could not duplicate issue. They asked me to record it and I was able to.

When driving at slow speeds, less that 10 MPH, the engine shuts off and vehicle shifts to neutral. Message is displayed on driver console Press Start Button to restart. Only the engines shuts down as all displays, entertainment center and controls are still displayed. Pushing the start button restarts the engine. This has occurred several times since purchasing the truck however it has occurred 2 times in the last 45 days. This issue has happened while driving in slow traffic on the interstate and is concerning when it occurs as I come to a complete stop without warning creating a possible rear end accident. It was first reported to my Chevy service dealer on 2/21.2025, The Chevy tech stated they could not duplicate the issue so no remedy has been offered. The issue continues to happen and I will be returning to my Chevy service center for another report of this continuing to happen.

On 04/03/2026 at approximately 0545 I was heading in to work . While at a complete stop I proceeded to accelerate on the Highway 54 BRF WI. 54615 when the truck made a clunking noise and jerked. At which point the engine light turned on along with reduced speed message across the display screen. unable to pull over safely at the moment I had to proceed no faster than 25 MPH on US 54 hindering all traffic behind me. once safely pulled over I placed the truck in Park, then neutral , which made a loud clunking noise and absolutely no reverse. Truck towed to local dealership. Vehicle had been inspected by Dealer tech. Tech stated faulty valve body in the transmission.

Intermittent loss of power steering with no warning other than message on dash saying loss of power steering then shut the car off and restart it and powering steering back for a little while and then it repeats

Vehicle went into Brake Assist Failure and would roll in neutral but no drivetrain power or brakes. Dealer took 3 months to find part. Acceleration jerky at stop or while driving. Pedal too sensitive. Constant traction loss from stop at lights and stop signs if not careful on dry pavement. Mode selection to Rain/Snow helps by restricting power, if it is remembered to be turned on. With rain and snow on the road it becomes challenging. Aggressive safety features that include the automatic braking and alerts. Brakes and alerts on double turn lanes and going forward near passing objects on the side.

The camera intermittently stops working, which makes backing up dangerous—especially since I’m [XXX] [XXX] . I haven’t taken it to the dealer yet because the issue happens unpredictably, and every time I consider going in for repairs, the camera starts working again. I need a reliable solution to fix this problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My car stalls, jerks, and shuts off when in drive. More specifically when I turn it on, shift it in reverse, reverse, shift into drive. I press on the gas and nothing. Car doesn't move. I put it back in park sometimes it'll shut off most of the time it'll jerks and jerk while I tap on the gas, then make a big stutter like power is low gas doesn't seem to be working with the pedal then it makes a huge jerk before it goes into drive. This has become an everyday thing. Car has shut off when auto off is on while at a stop. There's a huge creaking coming from the under body. Almost feels like something is going to fall out from under me. Every turn, bump, speed bump sometimes just at a stop then going into drive will create the loudest sound. Also sometimes it says I need to shift into park when I am in fact in park. When looking up common potential recalls my car checks almost every box that were stated online.

The shark fin antenna cover became loose. The antenna then fell off at some point while driving. This coming off while driving poses a risk to others on the road as it may have fallen off and hit someone else. The only “warning” it gave was stating the emergency call system failure. When googling I found out what the problem may be from. After looking further there are multiple Chevy traverse owners with the same issue after going through a car wash.

I am filing this safety complaint regarding a documented engine wire harness chafing defect in my 2021 Chevrolet Silverado 1500 with the 2.7L L3B Turbo engine. While driving, my truck experienced erratic acceleration, engine throttling to 3,000 RPM without returning to idle after releasing the accelerator, engine misfires, sudden loss of engine power, stalling, and multiple simultaneous warning lights. These conditions created immediate safety and collision risks on public roads. GM issued TSB 21-NA-149 in June 2021 and a second bulletin September 17, 2021, both before my November 2021 purchase, identifying wire harness chafing in the L3B engine caused by a manufacturing error. A wire harness clip was removed during production creating an uncontrolled harness branch that contacts sharp edges on the ECM/TCM bracket, upper control arm, and shock tower during normal engine vibration. This defect was built into the vehicle at the factory and was never disclosed to me at point of sale. The defect manifested after warranty expiration causing cascading failures; wire harness, catalytic converter, and transmission, all within five weeks. Vehicle has been inoperable since January 8, 2026. Defect confirmed by independent mechanic and by Ancira-Winton Chevrolet (authorized GM dealer) in their own repair documentation referencing GM Bulletin 21-NA-149. Dealer documented catalytic converter failure as consequential damage from wire harness repair. GM created Customer Satisfaction Program N192219370 for this exact defect. My VIN was excluded despite experiencing identical symptoms. No safety recall has been issued. Loss of throttle control and stalling at highway speeds represents an imminent collision risk. I request NHTSA investigate a formal safety recall for 2019-2023 Silverado 1500 and Sierra 1500 vehicles equipped with the L3B engine.

On January 6, 2026., I was backing out of my son's driveway when I heard a loud pop, it sounded like a rock hitting the back window of my Silverado. I then discovered the driver's side of the back window shattered. Prior to backing out, I used the auto start to warm up my vehicle. I did some research and found there was a recall for this issue that was supposedly completed by Lithia Chevy of Helena on 6/29/2020. GM is refusing to replace the rear slider window stating there's no recall. I then reported the issue to GM Product Assistance claims it's do to wear/elements. See recall below. GM Program #N192265660 Status: Complete Description: Certain 2014-2019 model year Chevrolet Silverado and GMC Sierra vehicles equipped with a power sliding rear window (RPO A48) may have areas of high electrical resistance on the rear defroster circuit. This could be caused, in part, by mechanical stress from opening and closing the rear power window, intrusion of debris, and use of the rear defroster. Over time, this condition could generate heat that could melt the areas surrounding the circuit. In rare instances, this heat could cause a non-propagating fire, increasing the risk of property damage or injury. This is the second time Lithia Chevy has claimed they completed a recall. On July 28, 2023, my brakes failed during a 200-mile trip to my hometown. After several days of battling with Chevy and General Motors I paid a private mechanic $100 to verify the vacuum pump had failed on my Silverado, Chevy finally fixed the issue on August 8, 2023. There was 47,781 miles on it at the time. See Repair Description below showing they supposedly completed the recall, the same day as the back window recall (6/29/2020). Repair Description Dealers will reprogram the electronic brake control module with a new calibration that will improve how the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted. Recall Completed: 2020-06-29