2024 Chevrolet Blazer

48 complaints on file, page 1 of 3.

1. Filed Oct 1, 2026Failure Jun 8, 2026Ontario, OHUnknown or other

   The plastic cover on the shark fin antenna has fallen off the vehicle twice now. The second time was just 12 weeks after the first one was replaced at the dealership. The part fails because the plastic clips that hold it to the base are brittle and are easily damaged by the high speed air dryers in car washes. My concern is that if the clips get weakened in the car wash and then the plastic cover separates from the base while driving at highway speeds, there is a very real potential for this part to strike the windshield of the car following my vehicle. The part in question is GM Part Number 26537604. GM has issued a direct replacement to the original OEM part number, GM Part Number 26512283 which presumably has reinforced clips to prevent this problem.

   NHTSA complaint 11768221
2. Filed Sep 23, 2026Failure Sep 23, 2026Milwaukee, WIBlind spot detection, Power train

   Chevy Trunk opens automatically without key

   NHTSA complaint 11766374
3. Filed Sep 22, 2026Failure Sep 21, 202648,100 milesHornbeak, TNService brakes, Hydraulic, Vehicle speed control

   The contact owns a 2024 Chevrolet Blazer. The contact stated that while driving 52 MPH, the brake pedal was depressed; however, the vehicle failed to stop as intended. The contact stated that the vehicle independently accelerated and there was an abnormal clicking sound. The brakes eventually responded, and the vehicle stopped. The contact stated that the failure lasted for approximately five miles. The contact's two minor grandchildren were inside the vehicle during the failure. The failure mileage was approximately 48,100.

   NHTSA complaint 11766072
4. Filed Sep 15, 2026Failure Aug 17, 2026Northville, MIFuel/propulsion system

   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)

   NHTSA complaint 11764406
5. Filed Sep 14, 2026Failure Sep 13, 2026Niskayuna, NYParking brake, Service brakes

   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.

   NHTSA complaint 11764194
6. Filed Sep 3, 2026Failure Aug 11, 2026Warren, MIPower train

   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)

   NHTSA complaint 11761802
7. Filed Aug 4, 2026Failure Aug 4, 2026Ramona, CAEngine, Fuel/propulsion system, Unknown or other

   The car just stopped while I was driving. I was in an intersection. The car would not turn back on

   NHTSA complaint 11754839
8. Filed Aug 4, 2026Failure Jul 31, 202640,000 milesMt Morris, MIAutomatic emergency braking

   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.

   NHTSA complaint 11754694
9. Filed Jul 30, 2026Failure Jul 20, 2026Cincinnati, OHPower train

   Sudden catastrophic drive train failure while driving. Car stopped instantly and was totally immobilized. It had to be dragged onto a flatbed tow truck. It is at dealership now for evaluation.

   NHTSA complaint 11753684
10. Filed Jul 22, 2026Failure Jul 22, 2026Mesa, AZUnknown or other

    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.

    NHTSA complaint 11752217
11. Filed Jul 7, 2026Failure Jul 1, 2026Denver, COService brakesCrash

    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.

    NHTSA complaint 11748905
12. Filed Jul 6, 2026Failure Jun 20, 2026Mesa, AZEngine, Fuel/propulsion system

    "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.

    NHTSA complaint 11748654
13. Filed Jun 11, 2026Failure May 31, 20265,500 milesAurora, COForward collision avoidance, Service brakesCrash1 injured

    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.

    NHTSA complaint 11743416
14. Filed May 20, 2026Failure Feb 15, 20258,600 milesWinchester, CAParking brake

    The contact owns a 2024 Chevrolet Blazer. The contact received notice of NHTSA Campaign Number: 25V433000 (Parking Brake). The contact stated that on several occasions, when he and his wife put the vehicle in reverse (R), the vehicle did not reverse as intended. He observed an "activate park brake switch" message that appeared. Additionally, on one occasion when his wife put the vehicle into reverse (R), the vehicle abruptly stopped but continued to work normally shortly after. The vehicle was towed to a dealer where it was diagnosed that the harness needed to be rerouted and anti-abrasive tape installed. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 8,600.

    NHTSA complaint 11739035
15. Filed Apr 28, 2026Failure Mar 21, 2026Socorro, NMElectrical system

    Driver Information Centre (DIC) and Infotainment go dark. This has happened twice now over the last 2 months. While driving suddenly the infotainment goes blank and loses the radio and then the DIC follows by going blank (dark). So I was left with no speed indication. The car drives normally during that time. After 30 seconds to a minute the screens come back on as if it rebooted while driving.

    NHTSA complaint 11734306
16. Filed Apr 27, 2026Failure Aug 1, 2025Aurora, COAutomatic emergency braking, Warnings, Unknown or other

    The front camera lens cover — located in the grille below the Chevy bowtie logo — has developed a spiderwebbed/shattered crack pattern. There is no impact damage to the surrounding grille or bodywork. The vehicle was garaged and not in use when the damage was discovered. The camera appears to still be working and parts of the image are crystal clear but the cracks in the cover distort the picture and make it impossible to use reliably. This is consistent with a material defect, not road damage. I have opened a case with GM Customer Care regarding this defect. My case number is: XXX. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

    NHTSA complaint 11733995
17. Filed Mar 22, 2026Failure Mar 22, 2026Liverpool, NYUnknown or other

    There is a defect in the motorized electric charge port door. When you press the button it rarely works to open the charge port door leaving me with unable to charge my vehicle. I fear this will leave me stranded and my only course of action will be to rip the door off in anger. Many others are experiencing this issue. Chevy needs to address this.

    NHTSA complaint 11726216
18. Filed Mar 18, 2026Failure Mar 15, 2026Indianapolis, INEngine, Power train

    I was driving to work as I normally do and work is only 15 miles away from home I get to work turn into the parking lot stop to scan my badge and I hear knocking noise I thought it was coming from the truck in front of me but after he moved on I still heard the noise and I found a parking spot as soon as I could and the engine light on the dash came on and the motor that was knocking is definitely my Blazer with only 11,222 miles on it. I always keep up on my vehicles maintenance in fact I just had the oil changed at Ray Skillman Gm Dealership2/16/26 it had 10,960 miles on it. Before that I had the oil changed at Ray Skillman 08/20/25 it had 7,720 miles on it then and before that. The very first oil change 22/ may /25 the mileage was 5,354 on it was at Hare Chevrolet where I purchased this Blazer RS Brand new it had 34 miles I always get the oil changed when it gets to 25%

    NHTSA complaint 11725131
19. Filed Mar 16, 2026Failure Nov 1, 2025Irvington, NJAir bags, Service brakes, BodyCrash1 injured

    On 10/29/25 I brought the vehicle in to Richard Lucas Chevrolet due to the alert from my insurance co that there was a recall with parking brake system. The dealership checked the car and told me they had to order the part that was needed due to the recall. Prior I also made the dealer aware that the car had recently stalled on me in the middle of the street, I was told by the dealership that this was apart of the recall! The dealership allowed me to drive the car and stated to me that they would call me when the part comes in! 2 days later on 11/1/25 while driving the car lost control, the brakes wouldn't stop and I crashed into 2 parked cars and landed on top of the second parked car which was a pickup truck! All of the airbags deployed and my body is pretty messed up from this horrific crash and this has caused fear in me of driving!

    NHTSA complaint 11724820
20. Filed Mar 4, 2026Failure Jul 15, 202418,000 milesMount Vernon, GAEngine and engine cooling

    The contact owns a 2024 Chevrolet Blazer. The contact stated while the vehicle was at the dealer to be serviced, the contact was informed that the oil pressure was low. The vehicle was taken to the dealer, and the dealer confirmed an oil leak. The contact was informed that the manufacturer had not developed a particular part to fix the vehicle. The contact was informed that blue silicone was used to seal the leak. In addition, the contact stated that the failure reoccurred. The vehicle was taken back to the dealer several times, but the failure persisted. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 18,000.

    NHTSA complaint 11722086