2024 Chevrolet Blazer

My 2024 Chevrolet Blazer EV AWD has experienced two separate incidents involving sudden loss of propulsion without warning. First Incident – XXX While driving in [XXX], the vehicle suddenly lost propulsion without warning while I was in a turn lane in front of a medical center. Following the loss of propulsion, the Driver Information Center displayed warnings associated with the AWD system, shift system, and high-voltage system. The vehicle could not be driven or shifted and became disabled in the roadway, creating a potentially hazardous traffic situation. An expedited tow was required because of the location of the disabled vehicle. The vehicle was taken to a Chevrolet dealership in Novi, Michigan. I picked it up on XXX. I was informed that a vehicle-wide reprogramming had been performed, the vehicle had been updated with the latest available software, and the condition should be resolved. Second Incident –XXX Only 12 days after the vehicle was returned following the reprogramming, the vehicle experienced another sudden loss of propulsion without warning while my cousin was driving on [XXX]. Following this event, warnings were displayed indicating that the AWD system, Electronic Stability Control (ESC), traction-control system, and high-voltage system required service. During this incident, the vehicle could be shifted into Neutral. Good Samaritans pushed the disabled vehicle from the roadway into a nearby parking lot. OnStar was contacted, and the vehicle was towed back to the same Chevrolet dealership that had serviced the vehicle following the XXX incident. The vehicle has therefore experienced two sudden losses of propulsion within approximately two weeks, with the second event occurring only 12 days after a vehicle-wide software reprogramming intended to address the first event. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Since buying the car in 2024 I have experienced multiple incidents where the system hard brakes for no reason, including times while driving. The emergency recall on this vehicle was repaired last year and since that repair this issue has occurred 2 more times, once earlier in 2026 and then most recently as yesterday despite claims by GM the issue has been fixed. My daughter currently drives this vehicle and is afraid she is going to get into an accident because of this issue. I tried to initiate a buyback but due to the miles on the vehicle GM would only settle for 4k.

Vehicle: 2024 Chevrolet Blazer VIN: [XXX] Component: Engine Cooling System (Radiator) Description of Incident: On XXX the vehicle was brought in for a routine maintenance service at approximately 20,000 miles. During the inspection, technicians at Hamilton Chevrolet in Warren, Michigan discovered a premature radiator leak. The servicing technician noted that this is a common failure on modern Blazers due to a manufacturing material mismatch, specifically where the plastic end tanks meet the aluminum radiator core. This structural component failure poses a severe safety risk. A rapid loss of engine coolant can cause immediate engine overheating, thermal management failure, and a sudden loss of vehicle propulsion while driving at highway speeds, significantly increasing the risk of a crash. Corrective Action: The defect was located and the radiator was subsequently replaced under the factory warranty by Hamilton Chevrolet (Warren, MI). However, this failure occurred far too early in the vehicle's lifecycle, indicating a structural or material defect in the OEM radiator seams. Please investigate this issue, as premature cooling system failures on this model year present an ongoing safety hazard. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2024 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed, the vehicle experienced phantom braking on four separate occasions. The Forward Collision Avoidance warning light was illuminated. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 40,000.

The radiator had a crack that nobody located even though I had been smelling antifreeze since I purchased it at 24,000 miles just over a year ago. I brought it in for an oil change today because I was leaving town for the weekend tomorrow and now a hole had blown through the bottom of the radiator. Had this happened when I was in a remote area of the mountains without cell service this could have been a very big problem. Or had it blown while traveling up the mountain pass it would have put my life and others passing me on the road at risk. There weren't any warning lights on and the car never overheated. There weren't any outward leaks up until the hole was blown in the radiator. I have had it in several times for oil changes and there were never any visible leaks noted. Luckily my engine never blew because I've been driving with a cracked radiator for at least a year now.

While driving my 2024 Chevrolet Blazer EV, the vehicle suffered a sudden, complete failure of the power braking assist system. The failure was accompanied by a rapid cascade of three sequential dashboard warning messages in immediate succession: First Warning: "Service ESC" illuminated alongside the "Brake Park" warning light. Second Warning: "Brake Assist Failure. Press Hard to Brake. Speed Limited" illuminated with "Brake Park" remaining on. Third Warning: "Brake System Failure. 62 MPH Top Speed" illuminated with "Brake Park" remaining on. Immediately upon these warnings triggering, the power braking assist and emergency mechanical reserve failed completely. When pressing the brake pedal, the vehicle did not slow down, and the pedal failed to engage the brakes. To avoid a catastrophic intersection collision and bring the vehicle to a halt, I was forced to deliberately steer the vehicle into a concrete curb to use friction to stop the car. The vehicle is a total loss of braking safety and cannot be driven. Safety Risk: The sudden loss of braking assist creates an immediate crash hazard, as stopping distances are severely multiplied. Limiting a vehicle to a maximum speed of 62 mph while experiencing zero brake assist on active roadways places the driver and surrounding traffic in extreme danger.

"While attempting to merge onto a high-speed freeway on-ramp, the vehicle suffered a sudden and catastrophic loss of engine power, rendering it unable to accelerate and creating an immediate life-threatening safety hazard. The vehicle was restarte and driven home, where an onboard diagnostic check revealed an emissions system failure. The dealership later confirmed that BOTH close-coupled catalytic converters on the 3.6L V6 were damaged. The check engine light was a solid light. Not flashing.

The contact owns a 2024 Chevrolet Blazer EV. The contact stated that while driving approximately 45 MPH and depressing the brake pedal to reduce speed, the vehicle failed to respond as intended and crashed into the rear end of a second vehicle at approximately 5 MPH. Moments later, a third vehicle crashed into the rear of the contact's vehicle. The contact was not injured during the crash. The occupant of the third vehicle sustained an unknown injury. A police report was filed. The vehicle was towed the residence and was later towed to a repair shop. The third vehicle was towed to an undisclosed location. The local dealer was not contacted. The cause of the failure was not determined. The manufacturer was notified of failure. The failure mileage was 5,500.