2024 Chevrolet Blazer EV brakes problems

Filed Sep 24, 2026 · Airbags, Brakes · 20,800 miles · MN · crash

The contact owns a 2024 Chevrolet Blazer EV. The contact stated that while his wife was driving approximately 15-20 MPH and pulling into the driveway, the brake pedal was depressed, but the vehicle failed to respond. The vehicle entered the garage, and struck equipment along with the garage wall, causing structural damage. The contact stated that the front driver's side air bag failed to deploy and the Forward Collision Avoidance system failed to engage as expected. The vehicle was towed to the dealer, where the contact was informed that no braking system failure was found; however, the contact believed that the failure was not identified because the system had rebooted prior to arrival at the dealer. The vehicle was in the process of being repaired at the dealer's body service center. The contact associated the failure with the federal safety agency Action Number: EA26006 (Service Brakes). The failure mileage was approximately 20,800.

Filed Jun 10, 2026 · Brakes, Driver assistance · TX

I am reporting a potential safety defect involving unintended automatic emergency braking/forward collision warning/brake-control behavior, reverse automatic braking, parking brake behavior, and driver-assistance/sensor calibration. Incident XXX ~11:15 AM, [XXX] driving 2024 Chevrolet Blazer EV ~20–25 mph on/near [XXX]. Vehicle displayed red collision alert and abruptly braked hard although the lane was clear; only a car was parked in a driveway on the right. Sudden braking created serious risk of rear-end collision/loss of control. Vehicle used for family transportation; toddler (~30.8 lb) had been in vehicle ~10 minutes before and family includes blind/visually impaired passenger. History of unwanted reverse emergency braking ~every 45 days: Jan 2026 near Crust Pizza Woodforest (backing up) and March 2026 at H-E-B 7988 FM 1488 Magnolia (backing out), jolting child in rear-facing car seat. Prior service at Keating Chevrolet Nov 12, 2025 (including recall/service for Unintended Parking Brake Engagement N252503010 and missing chassis harness plugs update) did not resolve unwanted braking. After June 10, AEB/front pedestrian braking/intersection collision braking were disabled as temporary safety mitigation. Vehicle removed from daily family use, available for inspection, and I request the federal safety agency review. Any inspection should preserve relevant braking/parking/AEB/forward collision/sensor data before any reset/update/repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 4, 2026 · Brakes · IL

The contact owns a 2024 Chevrolet Blazer EV. The contact received notification of the federal safety agency 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.

Filed Nov 3, 2025 · Brakes, Driver assistance · CA

Vehicle suddenly braking on its own by fifth time since May 2025

Filed Oct 6, 2025 · Brakes, Driver assistance · PA · crash

My son was driving in stop and go traffic on I-95 and he rear-ended another car. No safety features activated: i.e. dash warning lights, audible noise, auto breaking. Last week I was at teh dealer for the recall that effected the Emergency Breaking system. Talking with the dealer some updated turns the auto system off, or otherwise adjust the settings that I have prior. Backing out of the driveway the car lock up the breaks when it sees my trash can, but not on the highway? The dash warning lights randomly light up with nothing in front of me. I know the system does not prevent every accident, but it seems to pick and chose what it warns about. It is more a hazard then a help in its present state.

Filed Sep 18, 2025 · Brakes · CA

See attached document for complaint. I am writing to formally notify you, pursuant to the California Song-Beverly Consumer Warranty Act (California Civil Code§§ 1790 et seq.), that my 2024 Chevrolet Blazer EV, VIN 3GNKDHRK4RSXXXXXX is subject to an active safety recall N252503010 for the parking brake system. GM has acknowledged the defect, but no genuine repair or remedy Is available. I have already experienced problems with the parking brake, which substantially impair the safety, use and value of the vehicle. Due to the severity of this defect, I have placed the vehicle at the dealership, Woodland Motors, and it will remain there until GM completes the buyback process. I refuse to drive it because it is unsafe. I further understand that GM has instructed the dealership to adjust the depth sensor as so-called remedy. This adjustment has no bearing on the parking brake defect and cannot be reasonably be considered a repair nor the taping of brake lines that they also instructed to do. It does not address the safety risk or brake failure or unintended activation. Under California Civil Code§ 1793.2, the manufacturer must repair any defect that substantially impairs the use, value, or safety of the vehicle within a reasonable number of attempts and within a reasonable period of time. Since GM has no remedy and cannot provide a repair, it is impossible to comply with this requirement. Accordingly, I hereby demand that GM immediately: Repurchase my vehicle for the full purchase price, including sales tax, registration, finance charges, and any incidental or consequential damages. In addition, I request GM immediately provide me with a loaner vehicle or GM-paid rental until this matter is resolved, as it is unsafe to operate my current vehicle. If GM fails to resolve this matter promptly, I will retain legal counsel and pursue all available remedies, including attorney's fees, court costs and civil penalties under California Civil Code §1794.

Filed Sep 18, 2025 · Brakes · TX

The vehicle has engaged the brake on multiple occasions unexpectedly. This is related to the recent recall that GM announced and is unable to repair. I have made multiple attempts to reach GM through written mail, phone, X and the BBB and have not received a satisfactory resolution as the safety issue persists.

Filed Aug 20, 2025 · Brakes · CA

The contact owns a 2024 Chevrolet Blazer. The contact stated that while driving at various speeds, the vehicle independently came to an abrupt stop, with the "Service Parking Brake" message displayed on the instrument panel. The vehicle was taken to a dealer, where an attempt to duplicate the failure was unsuccessful. The contact was informed that the failure was likely a user error and that no issues were found with the vehicle. The failure persisted, and the contact then received notification of the federal safety agency Campaign Number: 25V433000 (PARKING BRAKE); which the contact linked to the failure. The vehicle was taken back to a dealer for the recall repair. The contact stated that the repair involved the installation of an anti-abrasive tape around the wiring harness. The manufacturer was notified of the failure, and a representative was sent to inspect the vehicle. The Chevrolet Representative was later informed by the dealer that the brake lines were already taped prior to the recall and that no additional repairs were needed. The vehicle remained in the possession of the dealer because the contact was concerned about the safe operation of the vehicle. The failure mileage was unknown.

Filed Aug 18, 2025 · Brakes · MD

The contact owns a 2024 Chevrolet Blazer. The contact received notification of the federal safety agency Campaign Number: 25V433000 (Parking Brake); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

Filed Aug 18, 2025 · Brakes · 28,989 miles · KY · 2 injuries

The contact owns a 2024 Chevrolet Blazer. The contact received a notification of the federal safety agency Campaign Number: 25V433000 (Parking Brake); however, the part to do the recall repair was not yet available. The contact stated that while reversing at 5 MPH, the rear parking brake independently engaged. No warning lights illuminated. In addition, the contact stated that while driving at 20 MPH, the vehicle had jerked with a sudden acceleration before the rear brakes had independently locked. Injuries were sustained. The contact sought medical attention for injuries sustained to his back, neck, and spine. The front passenger sought medical attention for whiplash and head injuries. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The failure occurred on several occasions. The manufacturer was not made aware of the failure. The failure mileage was approximately 28,989.