Chevrolet Blazer Complaints (2019)

189 consumer complaints on file.

#11716876February 9, 2026
ELECTRICAL SYSTEM, POWER TRAIN, STEERING
The shift-to-park sensor in my 2019 Chevy Blazer RS is malfunctioning. After shifting into park, the vehicle does not detect that it is in park and displays a “Shift to Park” message. The issue is/has been ongoing and now it is almost impossible to bypass with wiggling the shifter. Safety Risk: The vehicle cannot be fully shut off or locked, increasing the risk of battery drain or unintended movement. This poses a safety risk if the vehicle is left in public or on an incline. Inspection History: The vehicle was taken in to the dealership in November/December 2025 due to MULTIPLE Warning Lights: “Shift to Park”, "Steering Assist", "Stabilink" and the usb-C charging port under the radio screen will stop working all together when this happens as well. This started around September 2025 and has occurred regularly since.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715177February 2, 2026
ENGINE
The thermostat has been sticking, and needs to be replaced after only 30,000 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711579January 17, 2026
ENGINE, STEERING
Was getting a steering assist reduced error code. Auto stop quit functioning and air conditioning stopped cooling. Engine sounded like a jet. P 0128 thermostat error code came up and had to be replaced. I see lots of similar complaints. Cost me $700.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11707072December 26, 2025
ELECTRICAL SYSTEM
My car lost power twice in the middle of heavy traffic we could have gotten killed .i was told it was a battery I bought a battery it happened again .The car goes totally black and it locks you in the vehicle you can’t get out I had to call for help scared to death
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11705932December 18, 2025
LANE DEPARTURE: WARNING, LANE DEPARTURE: ASSIST, BACK OVER PREVENTION: WARNINGS
I have replaced the thermostat sensor 3 times because keep getting assist driver assistance disabled throws code p1028 code coolant drops check engine light come on the auto stop quits working
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704768December 12, 2025
UNKNOWN OR OTHER
Shift lever to Park Alert on dashboard. Paid to have shift lever replaced on Blazer. Also had same problem on 2018 Malibu..paid myself to have shift lever replaced! I was NEVER NOTIFIED about a Class Action suit. I believe this is a MAJOR PROBLEM on GM vehicle. NEED GM TO HAVE A RECALL!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701796November 27, 2025
UNKNOWN OR OTHER
Steering assist reduced message, then no AC, temp gauge stuck at Cold, P0128 error Code.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11699307November 13, 2025
SERVICE BRAKES, ENGINE, STEERING
We are noticing the coolant meter seems to be stuck on C, the AC is not blowing cold and we are getting a message that ACTION REQUIRED steering assist is reduced, drive with CAUTION. Today the brakes slammed on by themselves and almost sent my wife thru the windshield. Luckily she was in a clear area with no other cars around.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11696001October 28, 2025
UNKNOWN OR OTHER
The thermostat is stuck open and needs replaced. If left as it is, could create overheating issues for the engine and even more damage. A service engine light was illuminated prior to finding the issue. The light was accompanied by a warning about assisted steering. Two days after the light first came on, a Chevrolet service department diagnosed the problem and is repairing it. An invoice can be provided at a later date once repairs are completed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11694417October 19, 2025
STEERING, ENGINE
Engine temperature gauge is not working. Dash is displaying driver assist issue and steering intermittently locks up while moving. Air conditioning does not work and cooling fan is running at high speed. Thermostat and coolant temperature sensor need to be replaced. Such a high number of these vehicles are failing that i can’t even get factory parts
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11693730October 16, 2025
STEERING, UNKNOWN OR OTHER
Nothing necessarily happened, but I've been getting the "steering assist reduced, drive with care" pop up, which assist I've been reading might mean a faulty thermostat. Sounds like a common issue and may e time for a recall? Only 60k miles on my blazer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691782October 7, 2025
POWER TRAIN
The contact owns a 2019 Chevrolet Blazer. The contact stated that upon shifting to park(P) and attempting to turn off the vehicle, the message "Shift to Park" was displayed and an alarm sounded loudly. The contact stated that upon turning off and restarting the vehicle and shifting in and out of park(P) several times, the vehicle responded as intended. The contact stated that the failure had become a recurring failure. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 65,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691919October 7, 2025
AIR BAGS
i was in a severe accident on 10/6/2025 with a vehicle traveling at approximately 50+mph. My front quarter panel was struck crossing an intersection when a vehicle ran a red light. My vehicle sustained a lot of damage with my head striking the drivers side window --- with no air bags deploying
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11690844October 1, 2025
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
Dashboard goes on like a Christmas tree (almost all lights turn on ABS GAS LIGHT TRACTION CONTROL PARKING SERVICE LIGHT) check engine stays on then disappears after a few days. Transmission won’t gear into shifts only stays in one shift.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688325September 19, 2025
UNKNOWN OR OTHER
My transmission is leaking fluid and has trouble going in reverse. This model Has had two recalls in 2020 and 2021 with the one from 2020 Was specifically for missing parts on the transmission causing leaks. My car is under the mileage for the transmission to even be a problem as stated by multiple mechanics. If there was a recall why wasn’t I informed before the transmission began to leak. The is serviced regularly by dealership where car was purchased. My safety is important to me but I guess not to CHEVROLET BECAUSE I MEVER WAS TOLD ABOUT A POSSIBLE ISSUE WITH THE TRANSMISSION. SO I HOPE YALL TAKE NOTICE AND DO THE RIGHT THING
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685800September 8, 2025
ENGINE
Thermostat has gone bad. Talked to Chevy and they said it is a known issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685496September 6, 2025
UNKNOWN OR OTHER
Warning message flashes "put car in park" after putting it in park and pushing the stop button. It flashes for a few minutes, beeps the horn alert, and you can't lock it . It was diagnosed at a Chevy dealership as needing new switch and jumper harness at almost $800.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11684781September 3, 2025
ELECTRICAL SYSTEM
The well known Shift to Park issue where the park sensor is off and my vehicle won’t shut off without being able to register it’s in park. Auto garage quoted $600+ to replace the entire shift assembly. There’s a service bulletin out for this issue and the specific 2019 blazer but no recall
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683602August 28, 2025
STRUCTURE:BODY, POWER TRAIN, ELECTRICAL SYSTEM
1.The vehicle does not recognize it's in park periodically and will not shut off 2. Thermostat housing and thermostat failure 3. Tint covered chrome on exterior of body peeling off Only had the car 3 weeks Currently at dealership repairing thermostat out of pocket
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683213August 26, 2025
ELECTRICAL SYSTEM, ENGINE, STEERING
I keep getting this message that pops up, "Steering Assist reduced Drive with Care". At the same time this happens the temp gauge stays on cold, the ac quits working, the engine fan is on high, and most of the time I get code PO128. We have had it in to the dealer and they said the its the thermostat or the temp sensor. From what I am reading it could be a factory issue with the EMI issue from sensitive ECT circuitry. This has been an ongoing issue for us for over a year.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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