2025 Chevrolet Blazer

The Telematics Module failed and is on backorder. This is a known issue across the U.S. This makes it so OnStar doesn't work and I am paying for it. Not just that the safety concern of it not working. GPS, Maps, Level 3 Tesla doesn't work. Car is really not usable as we can't charge on a level 3 when going over 100 miles. We have loss access to navigation, Google Built-In services, the myChevrolet apps, and even core safety and convenience features tied to connectivity, including OnStar and Super Cruise.

2025 Chevrolet Blazer EV AWD purchased 5/23/25 (under 3,100 miles) The vehicle's Telematics Control Module (TCM) has failed, disabling the built-in navigation system, OnStar services, remote start, and My Chevrolet app connectivity. The dealership confirmed the TCM needs replacement and the part is on backorder with no ETA. This is a known issue affecting this model. I am reporting this as a safety defect for the following reasons: The 2025 Blazer EV does not support Apple CarPlay or Android Auto. With the built-in navigation disabled, the only way to navigate is by using a phone, which requires visual attention to a separate small screen while driving. Under Pennsylvania's hands-free law (75 Pa.C.S.A. § 3316.1), use of handheld devices while driving is a primary offense, making phone-based navigation both unsafe and legally problematic. On at least one occasion, the navigation system appeared to be functioning normally at the start of a trip but was providing materially inaccurate directions mid-route (e.g., instructing me to turn onto a road I had already been traveling on for miles). A system that displays as operational while delivering incorrect routing data is dangerous because the driver has no way to assess its reliability before departing. GM's EV Concierge characterized the loss of navigation as a non-safety feature issue and suggested using a phone holder. This response is inadequate given the vehicle's lack of CarPlay integration, which makes the built-in navigation the only safe, integrated means of route guidance. This vehicle has also required three prior unrelated warranty repairs in 10 months: a recall for a faulty rear parking brake harness (9/25), a 12V battery failure requiring flatbed towing (11/25), and a faulty tire pressure monitor (12/25). The pattern of recurring failures across unrelated systems at minimal mileage indicates a systemic quality issue with this vehicle.

The vehicle accelerated without input and the brakes failed to respond. I am notifying you that this vehicle is a life-threatening safety risk and should not be rented again until a master technician clears the electronic throttle control and breaking system. This condition presents a serious safety risk and could lead to a car crash or injury. Additionally, the vehicles, climate control system behaved erratically, alternating between extremely hot and extremely cold air without adjustment. This may indicate a broader electronic or system malfunction affecting vehicle city.

On two separate occasions the vehicle lost all power while driving. On December 5, 2025 turning on to a main road from parking lot the vehicle shut off with no prior warning lights. Shifted vehicle to park. No power to anything, unable to unlock doors, unable to turn on hazard flashers, stuck in the middle of the road at night. Waited a minute and pressed the start button and vehicle started with no problem. Again, on February 24 , 2026 making a left turn in intersection, without any warning the vehicle shut off… no power at all. Stuck in middle of road with no lights , no hazard flashers ,unable to get out of the car. Few minutes later vehicle started again. The vehicle did not stall while stopped, it completely lost power while moving. Reported problem to West Herr Chevrolet of Hamburg NY , brought vehicle in to dealership on February 25, 2026 and they were “unable to duplicate the concerns” The dealership paperwork states that the vehicle stalled while stopped, this vehicle lost all power while it was moving. We now have the vehicle back in our possession but are extremely concerned for our safety and the safety of others.

The contact owns a 2025 Chevrolet Blazer. The contact received notification of NHTSA Campaign Number: 25V433000 (PARKING BRAKE). The contact stated that while driving 35 MPH, the vehicle vibrated abnormally. The contact exited the freeway and the front passenger’s side tie rod detached from the vehicle and the vehicle lost power steering functionality. The contact was able to pull over to the curb. No warning lights were illuminated. The vehicle was inspected the contact noticed that the front passenger’s side wheel was bent and the tire was deflated. The vehicle was towed to the residence. The vehicle was not taken to the dealer or an independent mechanic. The vehicle remained at the residence unrepaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 22,000.

On December 22, 2025, I purchased a brand-new Chevrolet Blazer EV SS from a dealership located approximately 1 hour and 10 minutes away from my home. Immediately after leaving the dealership lot, I noticed a grinding / grunting noise coming from the vehicle. This was not a minor rattle or normal “new car” sound—this was an alarming mechanical noise in a vehicle that had just been sold to me as new. Because the selling dealer is so far away, and because I was concerned about driving a potentially unsafe vehicle long distance, I took it to a closer Chevrolet dealer for evaluation. I first brought the vehicle to Ciocca Chevrolet in West Chester, PA. After assessing the issue, they advised me to open a ticket with General Motors (GM) because they believed there was a legitimate defect that required GM involvement. Shortly after that, I left for the Christmas holidays, but the issue did not go away and I remained extremely concerned that I had just bought a defective vehicle. When I returned, I took the Blazer EV to Del Chevrolet in Paoli, PA for a second opinion and a thorough evaluation. After keeping the car and spending an entire day assessing it, Del Chevrolet acknowledged the problem. Despite two separate dealers identifying and acknowledging the issue, I have been unable to get timely action toward a repair. I have been told that GM is requiring additional testing and, most importantly, that GM is not authorizing Del Chevrolet to order the necessary parts. The dealership has indicated they are essentially stuck waiting for GM approval, which means my brand-new vehicle is in limbo with no clear repair timeline. As of now, the vehicle has only about 140 miles on it. This is a brand-new car that developed a serious noise immediately upon delivery, and I have now been forced into a loaner vehicle. It is Jan 17th. The vehicle is still at Del Chevrolet service center. Del Chevrolet, Fred Beans Chevrolet and GM corporate are involved in resolving this issue.

The contact owns a 2025 Chevrolet Blazer. The contact received notification of NHTSA Campaign Number: 25V433000 (Parking Brake); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact had stopped driving the vehicle due to safety concerns. 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.