Equipment Problems of Chevrolet Blazer - part 1

This happened back in may and the dealership couldn’t find anything wrong and it happened again today. I am driving and the car will shut off. A message pops up saying shift to neutral and press start again. It’s very dangerous and frustrating.

See all problems of the 2020 Chevrolet Blazer 🔎.

What component or system failed or malfunctioned, and is it available for inspection upon request? on September 12, 2026, while parked at the top level of a parking garage, the vehicle unexpectedly began rolling forward after being parked and exited. The vehicle subsequently struck a concrete wall. The vehicle is available for inspection upon request. How was your safety or the safety of others put at risk? on September 12, 2026, my son parked the vehicle on the top level of a parking garage. He exited the vehicle while I remained seated in the rear seat and his girlfriend remained in the front passenger seat. I later moved to the driver's seat to speak with her. As I exited the vehicle to meet my son, the vehicle unexpectedly started rolling forward on its own. Nothing was touched or intentionally activated prior to the vehicle moving. Because the vehicle began moving while I was exiting, I fell and suffered injuries including a scraped knee, swelling and injury to my foot, pain in my hands, and abrasions on my arm. The vehicle continued rolling and struck a concrete wall, causing damage to the front of the vehicle. The unexpected vehicle movement placed me, the passenger, and other nearby individuals at risk of serious injury. Has the problem been reproduced or confirmed by a dealer or independent service center? I am reporting these incidents for investigation. The vehicle is available for inspection by Chevrolet, the dealer, NHTSA investigators, insurance representatives, or other authorized parties. No warning lamps, messages, or other alerts were observed prior to the rear automatic braking events or the vehicle roll-away incident. The braking events and vehicle movement occurred unexpectedly and without warning. I no longer feel safe operating this vehicle. Between the multiple false activations of the rear automatic braking system and the incident on September 12, 2026, where the vehicle unexpectedly rolled forward and caused injury.

See all problems of the 2025 Chevrolet Blazer 🔎.

The screen displayed shift to park. The car wouldn’t not recognize it was in park. Had to hit the shifter to get the car to recognize it was in park or it wouldn’t let you turn the car off. There was nothing other than the warning on the screen when we went to get gas and needed to turn the car off. It hasn’t been inspected by any of for this issue. I’m just afraid one day the car may roll if it doesn’t recognize it’s in park.

3 times, while travelling at highway speeds, infotainment module and driver display went dark for at least 3 minutes. While in this state, there were no visual controls such as speed, turn signals, etc. - the entire dashboard was dark. Recurring codes are: u11fd(00) raw code: d1fd00 ecu: 40[archive (inactive)] status: confirmed, test failed since last dtc clear.

"steering assist is reduced, drive with care" showed up on the dashboard. The temperature gauge dropped to dead cold. Once the car was parked and cut off, the fan still kept running for 5 minutes. From my research it seems these are the signs of a thermostat being stuck open. It also seems this is a very common problem with this car, according to the internet. This vehicle has around 70k miles. There were no other issues prior to this failure.

See all problems of the 2022 Chevrolet Blazer 🔎.

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

See all problems of the 2024 Chevrolet Blazer 🔎.

The car is not sensing that it is in park when it is. When I place it in park and turn the car off it dings and says shift into park however it already is in park. Therefore the car will not turn off. I had to jiggle the shift or turn the car on, reverse then go forward then park to get it to register. This has taken up to 10 minutes and it’s getting worse. This is a known issue that is referenced in gm technical service bulletin 19-na-206.

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.

My infotainment system has completely blacked out. I have no navigation, no rear view camera or warning signals. I have no phone and no sos ?? emergency calls. I have no music no lane merging alerts. My charging station does not work in the front of the vehicle.

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.

I was going to park in a parking lot, when my car suddenly accelerated rapidly crashing into the building.

This is what came up on my screen. Steering wheel assist reduced. Drive with care. My hot and cold gauge drop to c and stayed there for about 4 days and my a/c was blowing out hot air. I was told a lot of these suvs have done this.

I was driving into a parking lot when my back passenger side window imploded like a rock was thrown at it, but no rock and nobody in sight. I looked all around for a cause but believe it somehow spontaneous shattered. Thankfully 3 minutes prior I had dropped my kids at school otherwise there would have been injury I am sure.

See all problems of the 2019 Chevrolet Blazer 🔎.

Variable valve timing (vvt) exhaust solenoid engine light has been coming on and turning off immediately for a few months, finally found the issue. $665 replacement.

Thermostat fails resulting in steering power reduced, temperature goes to c and fan runs overtime. This thermostat or temp sensor fails intermittently and fixes itself. Car could be overheating and you wouldn't know. This part is recalled on 2021 Blazers already.

Vehicle: 2020 Chevrolet Blazer issue: “shift to park” malfunction description: the vehicle repeatedly displays a “shift to park” warning message even when the gear selector is fully placed in park. Because of this issue, the vehicle does not always shut off properly and may continue running electrical systems after the engine is turned off. Symptoms include: * warning message stating “shift to park” * vehicle not recognizing that it is in park * difficulty shutting vehicle off completely * doors/horn behavior acting abnormally after exiting vehicle * concern about battery drain and vehicle safety the issue occurs intermittently but has become more frequent over time. The shifter often must be moved multiple times before the warning clears. This appears to be a widespread issue affecting many gm vehicles and may involve a defective shifter assembly or park switch component. I am concerned this defect could: * cause unexpected battery failure, * prevent the vehicle from shutting down properly, * create a safety risk if the vehicle does not correctly recognize park status.

1º transmisión 2º me quede detenida en una autopista y no podía avanzar por que no respondía a los cambios DE velocidad 3º si 4º si 5º no.

The radiator in these cars constantly fails. This can lead to major engine issues. Multiple chevy owners have reported defects.

Windshield leaking water inside of drivers compartment, headliner & side pillars (causing stained areas) as well as the top of onstar and electrical buttons on the overhead console . Found wet cup holder. Vehicle does not have a sun roof. Gm is aware of this issue from the factory gm plant in ramos arizpe, mexico. This defect is because of lack of not being sealed properly during the assembly process. The windshield has a factory oem rubber seal attached to a new windshield. This rubber seal is not a part that can be purchased separately to fix the problem. By replacing the entire windshield with the new factory rubber seal and the channel that the entire windshield fits into is resealed with urethane should fix the issue. . Trying to reuse the current windshield & rubber seal and using sealer to reinstall it stretches out the rubber seal & will still leak. This leak can get into the electrical controls for safety system overhead controls. Extra care must be taken to remove the windshield as to not damage the roof line in anyway. Vehicle is going back into dealership to fix issue again. Vehicle was resealed with existing windshield and showing signs of leaking on l&r pillars.

My engine coolant temperature sensor failed. Replaced it and still not fixing the issue. This takes my steering assist away as they are all interlinked? I have seen on forms this is a common issue. This has the potential to blow up my engine, I’m not sure how this is not a recall with so many 2020-2026 Blazer owners having the same issue.

Engine temp gauge stops working causing the air to stop working and the cooling fan to rev to highest rpm. Also a warning that the steering assist is reduced. Eng check light comes on with a code p0208. This a known problem with an extended service # (n242484760) but only if your VIN is listed. All vehicles with this problem should be covered. This seem to be a common problem, as my CO-worker is having the same issue. This should be a recall as the steering is affected.

The temperature gauge does not work, it stays at cold. The heater does not work unless the car is moving. Ac does not blow cold air at all. I get a message that says “steering assist is reduced. Drive with care”. There are a lot of people online with the same complaints on these vehicles.

My vehicle makes a clunk noise when the vehicle is in motion and I press on the accelerator it also makes a little jerk. This mainly happens @ low speeds and on a incline hill. There some type of oil or grease stains where the cv axle goes into transmission. Ive felt my vehicle with less power and pulls to the left. Took the vehicle to Chevrolet and they said they couldnt duplicate the issue or the oil leak.

See all problems of the 2023 Chevrolet Blazer 🔎.

The vehicle will not shut off when you shift to park. You are forced to sit in the vehicle for extended periods of time attempting to get the vehicle turned off. Apparently chevy is familiar with eat problem and there are pending class action law suits in ohio. According to the dealership chevy has acknowledged there is a defect but no recall has been issued. We have had this issue for about two months and it is getting worse.

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.

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.

2019 chevy Blazer. Car would not turn off the electrical components when parked. Put car in park and walked away and there is a warning note that says, "shift to park. " but the car was in park. Called chevy and they know about the issue on the 2019-2023 vehicles. They sent me the technical service bulletin. Back in 2020, the car had the shifting harness and button replaced and we just had to have it replaced again because it is a consistent issue with the vehicle. Except this time, the dealer charged us $668. 40 to fix it! it is a known issue by the company and they sent me the service bulletin to get it fixed. It should have been covered by chevy, or, at least a recall should be instituted. The power to the car wouldn't shut off. We were able to jump the car to get it started again.

My vehicle is breaking on its own. There are other vehicles riding behind me and it just stops out of nowhere. I think that's dangerous. I can be driving and I'm thinking I'm ok driving in a vehicle. Just just hit on break. I don't know where I just stops and while I'm driving and I think that's very dangerous.

At 48,000 miles, check engine light came on and loud fan sound continued after turning car off. Took car to dealership where I was informed I needed a new radiator and it is not covered by warranty.

See all problems of the 2021 Chevrolet Blazer 🔎.

When shutting off the car, the fan continued to run. I started the car up again to see if this would allow the fan to turn off. No luck. The steering assist was dis-enabled on the dash. I took my car to the dealer to find out that it has a bad thermostat and that my radiator was leaking. The thermostat was covered but I had to use my extended warranty to pay the additional repair. My deductible for my extended warranty is $300. 00. My daughter has a 2021 chevy Blazer and the same situation happened. There was a recall and all her parts were covered.

Thermostat housing replacement + dexcool: p0128, thermostat stuck. Was told this can cause engine to overheat.

I am filing a complaint regarding my 2024 Chevrolet Blazer ev (VIN: [xxx] ) due to an unresolved defect and repeated unsuccessful repair attempts. My vehicle has been presented to the dealership on four separate occasions for the same recurring mechanical noise issue. Despite these repair attempts, the defect has not been corrected. In total, the vehicle has been out of service for approximately thirty cumulative days. After the most recent repair, the same issue has again returned. I now have video documentation of the recurring defect. Additionally, during one of the repair visits, I was provided a gas-powered rental vehicle and incurred out-of-pocket fuel expenses, despite owning an electric vehicle. General motors has declined to offer reimbursement for these expenses. Due to repeated unsuccessful repair attempts and the amount of time the vehicle has been out of service, I have formally placed general motors on notice under michigan’s lemon law and am pursuing review for repurchase or replacement eligibility. I am requesting assistance from the attorney general’s office in obtaining a fair resolution, including reimbursement for expenses incurred and proper resolution of the ongoing defect. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Driving down the road at 50 mpg when to car just shut off had a hard time getting it off the road and did still was all the way we almost got hit three times.

I believe my thermostat is a problem. I keep getting "p012b" "coolant under operating temperature" codes on my obd2 meter. This seems to coincide with "driver assist reduced" on my instrument cluster on my dash board. I researched it and on a forum it sounds to be a very common problem. Someone said to report it on here. I can clear the "p012b" error code with my obd2 and my thermostat instantly becomes responsive however it comes back within 2 days or so.

I am concerned about a significant safety issue with my 2025 Chevrolet Blazer ev. On at least four separate occasions, the vehicle has unexpectedly applied extremely hard rear automatic braking while I was backing up, despite there being no object, vehicle, person, or obstacle behind the vehicle. The braking is so abrupt and forceful that it feels as though the vehicle has collided with something. Because the driver is typically looking over their shoulder while reversing, the sudden stop causes a violent jolt. This has resulted in neck pain and headaches for me and my son on multiple occasions. One of these incidents also occurred while my son was driving the vehicle. We discussed the event afterward and both experienced the same sudden, aggressive braking with nothing present behind the vehicle. The system appears to be activating falsely. This is a serious safety concern. The unexpected braking could potentially cause injury to the driver or passengers and may also create a hazardous situation if another vehicle is following behind. I am requesting that this issue be investigated and repaired as soon as possible.