Chevrolet Blazer EV Problems — All Years, Common Issues & Reliability

See attached document for complaint.

This is now the second report from this vehicle with similar issues. This incident happened when in reverse with nothing behind me, the vehicle slammed on its brakes. No audible warning in the vehicle and nothing showing on the dashboard. The vehicle just applied emergency braking. This was a witnessed event.

While driving in a plaza parking lot at approximately 18mph the AEB engaged for no reason. There were not any objects near our car to activate the system. The AEB activated so quickly and abruptly that my spouse and I needed to seek medical attention due to whiplash.

The contact owns a 2024 Chevrolet Blazer. The contact stated that while driving 20 MPH with 100 miles of charge, the vehicle stalled and shut off. The screen was black, unresponsive, and failed to start. The vehicle was towed to the local dealer, where it was diagnosed with a power module failure. The part was on back order. The electric module was previously replaced. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was 10,381.

The contact owns a 2025 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed, the Forward Collision Avoidance system activated while there were no objects or persons in front of the vehicle. The failure reoccurred on several occasions. The Forward Collision Avoidance warning light illuminated, and the message "Approaching Person" was displayed. The vehicle was towed to a dealer to be diagnosed; however, the failure was not duplicated. The vehicle was not diagnosed or repaired. The vehicle was taken back to the dealer to be diagnosed; however, the dealer was unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 4,100.

The cross pedestrian warning activates without any object there and slams on the brakes causing severe neck problems. The cruise control doesnt disengage when pressing on brake pedal causing drive to swerve to avoid crash.

This vehicle experiences multiple recurring safety-critical system failures while driving, creating a dangerous operating condition for both the driver and the public. 1. Dashboard / Instrument Cluster Failure While Driving While the vehicle is in motion, the dashboard display intermittently shuts off completely. When this occurs, I cannot see my speed, warning lights, battery status, or any other gauges. This creates a severe safety risk because I am effectively driving without any instrument information. The issue occurs while actively operating the vehicle on public roads. 2. Navigation / GPS Location Failure The vehicle’s built-in mapping system frequently shows my location several states away from my actual position. Even though the location is incorrect, the system continues to provide turn-by-turn navigation instructions based on the incorrect location. If these directions were followed, it could cause a driver to make unsafe maneuvers or become distracted while attempting to correct the navigation error. 3. False Automatic Emergency Braking Activation The automatic braking system frequently activates even when there are no vehicles, pedestrians, or obstacles present. The vehicle abruptly slows or brakes on open roads with nothing nearby. This creates a significant safety hazard because it could cause a rear-end collision if another vehicle is following. Repair History / Ongoing Issue: This vehicle has been taken in for repair multiple times for these issues. Despite attempted repairs, the problems continue to occur. The recurring nature of these failures indicates a systemic defect that has not been corrected. Safety Concern: These failures create multiple hazardous driving conditions: Loss of dashboard information while driving Incorrect navigation location and directions Unintended automatic braking events Allowing this vehicle to remain in service with these unresolved defects places both the driver and the public at risk. Request: I am requesti

The onstar module failed. Also controlling the pedestrian px Proximity sensor and crosstraffic sensor. When driving slowly waiting a parking lot the vehicle locked up on the brakes with the warning message pedestrian alert. The area was clear. No pedestrians were in the vicinity This would be the 3rd incident 1st was cross traffic already braking while entering a light only at a speed of 15 mph. 2nd was the cross traffic and 3rd was the pedestrian alert.. We discovered the onstar module contrs all of these functions. Contacting the dealer theu stated the module need to be replaced but there is not an ETA on the part arrival as this is a common issue with all vehicles that contain. This module. We are scared it will happen if a driver pulls in front when in traffic or put us in a precarious even deadly situation

I recently purchased this EV Blazer and one day I went to charge it at a fast charging station. It would not charge and so I got it to the Chevy dealership in Yakima, WA. They told me that the battery itself had been physically damaged due to the location of the battery and it not being protected. I have no recollection of ever hitting anything and there was no visible or damage to any other part of the Blazer. It seem to me that the location of the battery and it being unprotected is a major design flaw.

The keyless entry and start system intermittently fails to detect the key fob, preventing the vehicle from starting, locking, or unlocking. On one occasion, a "Service Keyless Start System" warning appeared on the dashboard while the vehicle was being driven at 75 MPH on a highway. The driver was unable to safely stop and feared the vehicle would become inoperable in traffic if turned off. The issue first occurred on January 1, 2026. Both key fobs were tested with new batteries — both exhibited the same failure, indicating the defect is in the vehicle's key detection system, not the fobs. Roadside assistance confirmed this was an EV-specific system issue they could not resolve. The vehicle was taken to an authorized Chevrolet dealership for repair. It was in the shop for approximately 5 days. The dealership performed a full system upgrade and completed safety recalls but stated they could not replicate the key detection issue. Within approximately 30 minutes of picking up the vehicle after the first repair, the "Service Keyless Start System" warning reappeared while driving at highway speed. Two days later, the vehicle completely failed to start, lock, or unlock, displaying "No Key Found" with the battery at 100% charge. The vehicle was towed back to the same dealership for a second repair attempt. During the second escalation, the manufacturer's EV support team noted that the manufacturer's internal system showed safety recalls still appearing as open, which appeared inconsistent with the dealership's paperwork from the first visit claiming those recalls were completed. The vehicle has been serviced twice for this defect. The component — the keyless entry/start detection system is available for inspection. The intermittent nature of the failure makes it especially dangerous, as the driver cannot predict when the vehicle will become inoperable. This defect poses a serious safety risk if the vehicle loses key detection while being driven at highway speeds in traffic.

The contact owns a 2024 Chevrolet Blazer EV. The contact received notification of NHTSA Campaign Number: 25V433000 (PARKING BRAKE); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

1. Vehicle has a horrible squeaking sound coming from the brake pedal area. First dealer diagnosed it as the master cylinder needing replacement. Noise did not go away and GM said that it is normal. The noise is not normal and has never been on any other car I have owned. 2. When reversing, the car sometimes abruptly slams on the brakes as if it is avoiding a collision even though no collision is close to happening. GM refuses to fix the problem.