2019 Chevrolet Blazer transmission & drivetrain problems

Related recalls

• Recall 20V668000Oct 29, 2020194,105 vehicles
  POWER TRAIN:AUTOMATIC TRANSMISSION

  General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.

  Risk: Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.

  Remedy: GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.

What owners say

1. Filed Aug 27, 202622,000 miPABody & StructureEngineTransmission & Drivetrain

   The contact owns a 2019 Chevrolet Blazer. The contact stated that while starting the vehicle, there was a strong odor coming from the vehicle, and no warning lights illuminated. The contact also stated that a "Shift to Park" warning message displayed while the vehicle was already in Park, requiring multiple shifting attempts to clear the message. The vehicle was taken to a dealer, where it was diagnosed that the radiator had failed and needed replacement. The vehicle was…

   NHTSA complaint #11760052 · source
2. Filed Aug 18, 2026NYEngineTransmission & Drivetrain

   Thermostat went bad at 47,500 miles. Temp gauge stopped working, Engine light came on and alert stating steering assist is reduced

   NHTSA complaint #11757806 · source
3. Filed Apr 6, 2026MSElectrical SystemSteeringTransmission & Drivetrain

   Shift to Park issue: Known issue where the car fails to recognize it is in Park, preventing it from shutting off. Electronics: Potential blanked-out display screens, USB port issues, and malfunctioning cameras. Steering Assist: Restricted, temperature gauge goes to cold and radiator fan blows hard. I have to unplug negative cable to battery and reconnect and everything goes back to normal.

   NHTSA complaint #11729329 · source
4. Filed Feb 9, 2026TXElectrical SystemSteeringTransmission & Drivetrain

   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…

   NHTSA complaint #11716876 · source
5. Filed Oct 7, 202565,000 miILTransmission & Drivetrain

   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…

   NHTSA complaint #11691782 · source
6. Filed Oct 1, 2025AZElectrical SystemEngineTransmission & Drivetrain

   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.

   NHTSA complaint #11690844 · source
7. Filed Aug 28, 2025MDBody & StructureElectrical SystemTransmission & Drivetrain

   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

   NHTSA complaint #11683602 · source
8. Filed Aug 14, 2025MITransmission & Drivetrain

   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!!

   NHTSA complaint #11680719 · source
9. Filed Jul 9, 202540,000 miMDTransmission & Drivetrain

   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…

   NHTSA complaint #11672301 · source
10. Filed Jun 24, 2025114,000 miIATransmission & Drivetrain

    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…

    NHTSA complaint #11668863 · source
11. Filed Jun 16, 2025TXTransmission & Drivetrain

    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

    NHTSA complaint #11667215 · source
12. Filed Jun 15, 2025OHElectrical SystemEngineTransmission & Drivetrain

    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,…

    NHTSA complaint #11666997 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology