Chevrolet Blazer Complaints (2019)

189 consumer complaints on file.

#11681906August 20, 2025
ELECTRICAL SYSTEM
I am currently receiving a shift to park message displayed while my vehicle has been put in park and after I turn the vehicle off. While the message is displayed, the doors will not lock and a bell will not stop dinging, notifying me of the error. I have to start the vehicle, shift into gear, shift into park, and turn off several times before the error disappears. I have an appointment to have the dealer look at it this week.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11680719August 14, 2025
POWER TRAIN
SHIFT TO PARK ERROR IN 2019 CHEVROLET BLAZER. This has affected NUMEROUS vehicles that should be issued a recall and not have to pay over $2500.00 to fix!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672301July 9, 2025
POWER TRAIN
The contact owns a 2019 Chevrolet Blazer. The contact stated that while attempting to turn off the vehicle on several occasions, the gear shifter was shifted into park(P) but the vehicle failed to recognize that the gear shifter was in park(P). The contact stated that the message "Shift to Park" was displayed. The contact stated that the vehicle was not able to be turned off and remained in drive(D). The vehicle was taken to a dealer where it was diagnosed that the shift controller sensor needed to be replaced. The vehicle was repaired but the failure reoccurred within two months. The vehicle was then taken to another dealer where it was diagnosed that the shift control sensor needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was approximately 40,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11670661July 1, 2025
UNKNOWN OR OTHER
The car does not sense when it is put into park. The alarm continues to ding and the car will not turn off . It displays a message stating shift to park.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11668863June 24, 2025
POWER TRAIN
The contact owns a 2019 Chevrolet Blazer. The contact stated that upon attempting to shift to park, the vehicle failed to register that the gear shifter had been shifted to park. The contact stated that the message “Shift to Park” was displayed. There was no warning light illuminated. The contact was unable to turn off the vehicle during the failure. The vehicle was taken to a local dealer where it was diagnosed, and the contact was advised that the shifter cable was faulty and needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 114,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11668473June 22, 2025
ENGINE
Diagnosed as a bad thermostat. AC not working. Steering assist issue. Temp gage not working. Car is out of warranty.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11667215June 16, 2025
POWER TRAIN
When you try to turn the vehicle off, there is a “Shift to Park” warning with the vehicle already in Park. The vehicle has only 19,000 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11666997June 15, 2025
ENGINE, POWER TRAIN, ELECTRICAL SYSTEM
At startup, I would receive a message that said, steering assist reduced. There were no check engine lights or warning lights. My air conditioning stopped working, and my temperature gauge on the dash remained at cold. I also noticed the radiator fans were on full blast, continuously. I called the dealer, and they weren't sure what was causing that. I told them I was getting codes #U0401 & P0128. They asked me to clear the codes to see if they returned. I cleared the codes, but they returned immediately on restart of the engine. I'm going to replace the thermostat but i didn't understand the #U0401 code, so did further research. I found 2017 Bulletin #17-NA-158 which seamed relevent to my issues, and Vehicle Fitment that confirmed my 2019 Chevy Blazer is included. I then came to find that the un-shielded low voltage wires for the coolant temperature sensor are routed through the same harness as high voltage coil wiring. Some of us know that EMI will affect low voltage signals. As an HVAC system designer, I know that un-shielded low voltage communication wiring cannot run parallel two line voltage power wiring. The effects are not continuous, but definitely reoccurring. I also understand there has not been a recall for this issue which surprises me. I can replace the thermostat even in its difficult position, but I don't feel comfortable in separating the low voltage wiring from the harness. I understand that dealers who are aware of this issue, charge a hefty fee to do so. It's definitely one that I can't afford.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11665803June 9, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
coolant temp gauge stuck on cold, AC quits blowing cold air, reads the thermostat code when check engine light comes on. Was told my car needs a new thermostat and a coolant temp sensor. This has proven to be a common issue among Blazers. there is no rhyme or reason when this happens and will fix itself after a while, but then happens again.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664173June 1, 2025
STEERING, ENGINE
Temp gauge intermittently reads cold, no ac and engine cooling fan constantly blowing, dash warning re power steering, 40,000 miles, code po128, review of google indicates this is a common problem and likely needs a new thermostat and ect
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663540May 28, 2025
POWER TRAIN
we have a start / stop issue with our 2019 chevy blazer . the dashboard states to put into park .we cannot turn car off with this on dashboard . why is this not a safety recall , because we have seen a lot off people complaining about the same issue . WE CALLED THE CUSTOMER SERVICE FOR GENERAL MOTORS CORPORATE , and they told us there is no recall for that . we also got a postcard from a lawyer stating there is a settlement this . what are legal options to get this resolved .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662019May 20, 2025
UNKNOWN OR OTHER
My check engine light is on the, the temperature meter is stuck on cold, the A/C only blows hot air, and the engine fan is blaring loud as heck the moment the car is started. Also it keeps telling me the steering assist has failed. I have replaced the battery and checked the coolant. Still the same issues.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661668May 18, 2025
ENGINE, ELECTRICAL SYSTEM
35,000 miles and P0128 code that does not resolve after expensive repairs of coolant Temperature sensor and thermostat multiple times.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660634May 13, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, POWER TRAIN, VEHICLE SPEED CONTROL
My transmission can accelerate with the cruse control on, transmission also sputters at lower RPM. Lastly my shift to park issue kills the battery.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11659823May 8, 2025
ELECTRICAL SYSTEM, ENGINE
P0128 error, power steering reduced warning, cooling fans on, no a/c and temp gauge stuck on cold
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11659193May 6, 2025
ENGINE, UNKNOWN OR OTHER
"shift to park" message appears when parked (even if safety brake is engaged) and attempting to turn off the vehicle. The vehicle does not turn off and remains running for various periods of time. Unable to turn the vehicle off, leaving it unsecure and drains the battery. This happens consistently. I contacted my local dealership and they confirmed getting several of these reports through their shop, but no recall has been made.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657344April 28, 2025
UNKNOWN OR OTHER
My check engine light came on (solid) and my AC stopped blowing cold air and my auto start stopped working. I used a diagnostic tool to read the code and it said "P0128 Coolant Thermostat $07e8". The same thing happens with my heat when it gets too cold out.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657094April 27, 2025
ENGINE, POWER TRAIN, STEERING
The Blazer is having a recurring P0128 code. We have informed the dealership. This has been going on for 2 years or so. I reset the code with a code reader and it stays off for a few months usually. Tried to have the dealership look at it one of the last times it happened but they wouldn't just look at it...they wanted to set up an appointment. We needed the car so I reset the code again. Now it is time to get it fixed. I know it needs a thermostat and temperature sensor. The cost to install it will be close to $1000. This should not be at my cost. This is a know issue with the 3.6L engine and it affects the emissions of the vehicle along with many other parts of the engine. I am reaching out to see what can be done.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656851April 25, 2025
ENGINE, VEHICLE SPEED CONTROL, POWER TRAIN
engine - code p0128 engine coolant thermostat. This is a safety issue because it reduces the power steering on vehicle, auto stop stopped working, unable to remote start vehicle. Issue has been confirmed at an independent service center (I work at an auto collision center). Warning lamp - check engine light. Message on dash - power steering reduced. Appears everything came on at the same time. Per dealership items most likely needing replacement are engine coolant thermostat and engine coolant temperature sensor but ecm module could also need replacement. Advised common problem but no recall power train - transmission shutters when accelerating. Safety is at risk because vehicle will not accelerate or accelerate too quickly. Called to dealership advise flush transmission fluid twice to fix issue. We have done this 4 times in the past year. Shutter temporarily reduces but does not go away. Per service advisor it is a "function design" and if flushing transmission fluid does not fix issue then transmission will need to be replaced. There are no warning lights or messages on dash electrical - vehicle says shift to park when vehicle is in park and will not allow vehicle to turn off. It is a safety issue because vehicle will not shut off. Problem confirmed by an independent service center we have already replaced the in-line wire harness jumper. This did not fix the issue. Advised from service center that entire shifter would need to be replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656083April 22, 2025
UNKNOWN OR OTHER
Action Required: Steering Assist is Reduced Drive with Care & Check Engine Light comes on after the alert message. When these are on, the ac does not get cold. Unhooking the battery resets it for a few days and then it comes back on.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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