Chevrolet Blazer Complaints

289 consumer complaints on file.

#11690646September 30, 2025
POWER TRAIN
The contact owns a 2021 Chevrolet Blazer. The contact stated that while her husband was driving 60 MPH, the "Service Engine Soon" message was displayed. The contact's husband pulled over to the side of the road. The contact's husband used his personal FIXD machine to diagnose the vehicle. The contact’s husband retrieved DTC: P023F (Powertrain Control Module Detected a problem in the Electrical Pathway supplying power to the Fuel Pump). The vehicle was towed to an independent mechanic who diagnosed the vehicle and determined that the fuel pump had failed. The vehicle was then towed to the dealer. The vehicle has not been diagnosed. The contact related the failure to Manufacturer's Recall Number: N252516900. However, the VIN was not included. The manufacturer was not made aware of the failure. The failure mileage was 90,493.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11689652September 25, 2025
ENGINE
Radiator leak, leaking antifreeze
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11689364September 24, 2025
POWER TRAIN
On July 31st 2025 my vehicle would not sift out of first gear. I had vehicle towed to Kelly Chevrolet in [XXX] . After a failed repair attempt on August 18 2025 have been waiting on back ordered valve body part number 24045659. No eta on this part even though a transmission replacement would resolve but dealer refuses to replace. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11689086September 23, 2025
POWER TRAIN
Steering assist reduced warning came on with engine light. When car turned off , radiator fan continued running for a few minutes before turning off. AC would also not work during this time. Issue has been intermittent. Was told the thermostat was getting stuck open and needs replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688917September 22, 2025
POWER TRAIN
The transmission in my 2024 Chevrolet Blazer is very noisy often making whining and grinding sounds and I experience rough shifting and transmission hesitation during acceleration or gear changes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688892September 22, 2025
ELECTRICAL SYSTEM, POWER TRAIN, STEERING
Since I’ve got the vehicle i experienced issues with it not going in drive or reverse sporadically. I was air to obtain this in video and show it to the dealer for the first time Dec 2023. In addition and overtime it’s seems this issue may go hand and hand with the lane assist issue that had been known on Chevy models where they either don’t work of they don’t recognize the lanes correctly and they pull although your in the correct lane.i have specifically taken the car in on 3 or more occasions about it disengaging and not driving forward or backwards. More recently it started to seem as if while u was actually driving the car did not want to accelerate forward and then while trying to accelerate the steering wheel pulled and caused the car to spin out of control on the freeway. The car was just in the shop from End of April till May and the issues are unable to be duplicated so I just keep getting pushed off with the car. The car radio constantly malfunctions and glitches i several different forms, black screen no sound or not allow Bluetooth capabilities. My most main concern is this power train issue and me getting stuck with a car that is going to be it of warranty and the issue has never been resolved even though I have showed the dealership a live video of the occurring issue that there is something wrong here.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688584September 20, 2025
SERVICE BRAKES
Brake booster failed after 50k miles needing repair. Brake became very still, prolonging the time it takes to stop the vehicle
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688507September 19, 2025
ENGINE
Was informed at today's oil change that my radiator is leaking and it's something that they are seeing a bunch.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687753September 16, 2025
VEHICLE SPEED CONTROL, FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
Increasing speed by itself, let foot off gas pedal and gas pedal sticking, 1st time I tapped brakes and it quit. 2nd time it did not. I had to slam brakes and hokd until the point they had overheated and smell burnt and filed a separate complaint for that today. Gas pedal sticking and self accelerating. Pedal to the floor accelerating. I do not drive like that and scared the hell out of me. I bout it 5 days ago from a Chevrolet dealership. I'm tired of rip offs. Next one best be brand new and they reimburse me for outside mechanical I inspection period. Bc I trust no dealer now. Went from 7p to about 95 in 10 seconds for 10 min. Not sure what braking did bx I coukd care less about the phone whike I am trying not to hit cars in front of me literally almost jammed an 18 wheeler and moving truck with me pushing the brakes as gmhard as I could.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687752September 16, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Accelerating without pressing gas pedal and gas pedal won't release with braking. Brakes overheated and this went on 10 minutes before I got it to release the gas pedal so I could safely stop. I almost hit 4 vehicles on the interstate because the gas pedal went to the floor all the sudden.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687536September 16, 2025
UNKNOWN OR OTHER
my vehicle is roughly 40k miles. The temp gauge was stuck on C the cooling fan was running continuously even when the car was off and the checked engine appeared. The mechanic at the dealership said the thermostat is stuck in open position causing the computer not to know if the engine is cooling properly. For a vehicle less then 5 years old with upkept maintenance and doing a bit of research... This is a common occurrence in Chevy vehicles. Therefore, the manufacturer needs to look into recalling this issue costing people thousands of dollars. This was my first Chevy and probably my last.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687312September 15, 2025
POWER TRAIN
Temp sensor quit working. I have seen online there are tons of people having this exact problem but no recalls issued
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687101September 13, 2025
ELECTRICAL SYSTEM
1. Fuse array has failed, and yes it is available for inspection upon request 2. The car overheats, posing a threat to passengers lives due to having to pull over on the side of the road and being struck by other drivers. 3. Yes it has been confirmed by a dealer/service center. 4. Yes it has been inspected by certified service technicians. 5. Yes, the engine light comes on and the dash says “Engine power reduced” and then “vehicle overheating, please pull off the side of the road and turn engine off”. There were no symptoms leading up to the vehicle overheating. This first occurred in April 2025, and occurred again September 6, 2025. When speaking to the dealership, they stated that this is a widespread issue with Chevrolet Blazers and because of how big this issue is, new parts are on back order until middle to end of October. I cannot drive the vehicle to go grocery shopping or bring my daughter to daycare. Because this is a widespread problem, there needs to be a recall issued. Chevrolet installed faulty fuse arrays in their vehicles and this is their fault for this happening at such a large scale.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687082September 13, 2025
ENGINE, ELECTRICAL SYSTEM
Thermostat not working. Causing fan to run as if the vehicle is overheating
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685984September 9, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Auto braking system went off when I was at stop light & began to move forward (was 2nd in line of cars) and I accelerated. On the roadway, there are construction 'steel plates' laying on the ground in the area that all cars must drive over (I have driven over them in my same Blazer before) because we have no choice. One I pressed on gas & began moving over those plates, the Blazer stopped itself VERY abruptly & jerked my head forward & dash said I had to press on brake let off or something in order to move again - it was all very fast & I had a line of traffic behind me at 5:15 pm on a Friday (9/5/25). I'm very luck I did not get hit from behind & car behind me paid attention! That is the 3rd time my car has stopped suddenly; 2 times before it was when going up my very steep driveway so I had no one behind me & I wasn't as shook up - Chevy needs to REALLY look at this! It is a hazzard!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11684653September 3, 2025
FUEL/PROPULSION SYSTEM
I was driving down 776 (a busy highway)Blazer completely shut off, so scary almost got hit by a semi, I don’t know how he managed to get around me , I jumped out of car! Sure thought it was my day to die! Called police for help! Had it towed home then to garage , was told it was the electrical fuel modular! Haven’t slept right in 3 days ! I’m still so shaken up!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682555August 23, 2025
UNKNOWN OR OTHER
The temperature gauge or thermostat has been replaced 3 times and continues to fail
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681348August 18, 2025
POWER TRAIN, ENGINE
I am writing to inform the appropriate authorities of the issues that I’ve continually had with my 2023 Chevrolet Blazer. It has come to my attention that the aforementioned vehicle will need a new transmission and possible engine repair currently totaling at just over 6,000 dollars in repair costs. When I was provided with the total repair cost I was informed by the certified service representative that this was a common issue for the Blazer model and that GM was aware of the ongoing issue. I’ve reached out to GM with my concerns regarding this vehicle and the fact that this is an issue that has in prior dates prompted recalls for blazer models from the year 2020-2024. I have because of the transmission defects/ failures been stranded and unable to shift gears required for proper motion of the car. To which I am sure you can understand the public safety risk of an inoperative transmission. I have taken the car in for service concerning the transmission on 3 separate occasions within the last 10 days and was told by prior service technicians that “ No problems were visible” leading to the total breakdown of the transmission. I reached out to GM and told them of my wish to return the leased vehicle early due to my fears of now driving and operating the car and was told that I was not eligible for a buy back. GM is maintaining its stance of no liability and I am seeking outside help from this governing agency to ensure that repair costs are fully covered for this defective product.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679141August 7, 2025
STEERING, ENGINE, SERVICE BRAKES, HYDRAULIC
The contact owns a 2022 Chevrolet Blazer. The contact stated that upon stopping at a red traffic light, the vehicle's auto start/stop system activated and turned the engine off. The warning message "Brake System Failure - ESC- Steering Assistance Reduced". The driver was able to pull to the shoulder of the roadway and turn the vehicle off. Upon restarting the vehicle, the vehicle returned to normal functionality, but the failure recurred. The check engine warning light was illuminated. The vehicle was not diagnosed or repaired by the dealer or an independent mechanic. The manufacturer was notified of the failure, and a case was filed. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was 121,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11678892August 6, 2025
ENGINE, UNKNOWN OR OTHER
At routine oil change dealer noticed radiator was leaking. 60,840 miles Took it to an independent repair shop who confirmed radiator needed to be replaced. Has also seen same on other 2021 Blazers. No visible signs of leaking (fluid on garage floor) or warning indicators. No recall issued on this, however, seems to be a common problem on 2021 Blazer based on Chevy forums. Due to safety issues, vehicle is currently in shop for the needed replacement repair.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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