2019 Chevrolet Blazer Transmission Problems

Which parts fail

• Automatic transmission › Lever and linkage › Floor shift
  3
• Automatic transmission › Lever and linkage › Column shift
  1

Components named in complaints (automatic and manual transmissions, CVT, axles, driveshaft, 4WD/AWD).

Mileage when the problem started

• Under 25k
  436%
• 25k–50k
  327%
• 50k–75k
  218%
• 75k–100k
  19%
• 100k–150k
  19%
• 150k+
  00%

Owner reports

Selected complaints filed with NHTSA by 2019 Chevrolet Blazer owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2019 Chevrolet Blazer. The contact stated that upon driving into a parking space and placing the vehicle into park(P), the vehicle independently accelerated into a building. The air bags deployed upon impact. The contact was treated at the scene by paramedics for minor scrapes and bruises. A police report was filed. The vehicle was towed to an independent collision center for repair. The contact was informed that a couple of bricks on the building were damaged due to the collision. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 33,000.

The contact owns a 2019 Chevrolet Blazer. The contact stated that while starting the vehicle and shifting into drive(D), the vehicle lunged forward. There was no warning light illuminated. The contact stated that she was able to drive the vehicle however, the failure persisted while starting the vehicle and shifting into drive(D). Additionally, the contact stated that upon parking and turning off the vehicle, the message "Shift to Park" was displayed. The contact stated that she restarted the vehicle and moved the gear shifter from park to drive and from drive to park several times until the transmission moved into park(P). The contact stated that the failure occurred intermittently. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure but did not provide any assistance. The contact also became aware of NHTSA Campaign Number: 21V115000 (Tires). …

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 repaired. The contact was informed that the radiator issue was a known failure that could recur. Additionally, an inspection revealed that the rear tow hook had failed and needed replacement. The vehicle was repaired. Regarding the shifter failure, the contact was informed that the failure could not be duplicated. The manufacturer was not notified of the failure. The failure mileage was approximately 22,000.

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.

The contact owns a 2019 Chevrolet Blazer. The contact stated while placing the vehicle in the park and attempting to turn off the vehicle, the message "Shift to Park" was displayed on the instrument panel, enabling the ability to turn off the vehicle. The transmission failed to lock the vehicle in park for the vehicle to be able to turn off. The vehicle was taken to the dealer where it was diagnosed that the harness Part Number: 84733196 and the switch Part Number: 84955379. The vehicle was repaired. The manufacturer was made aware of the failure and confirmed that there was no recall for the failure. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 19,563.

The contact owns a 2019 Chevrolet Blazer. The contact stated while driving at an undisclosed speed, the vehicle lost motive power. The contact stated that the accelerator pedal was depressed, and the engine remained idling; however, the vehicle failed to respond as needed. The contact was able to navigate the vehicle off the roadway. The check engine warning light then illuminated. The vehicle was towed to the dealer where it was diagnosed that the connecting transmission coolant hose had disconnected due to a missing clip, and that the transmission needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 93,000.

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.

The contact owns a 2019 Chevrolet Blazer. The contact stated while driving at various speeds, the vehicle accelerated and decelerated independently. The contact stated that the message to "Shift to Park" was displayed while shifted to park(P). The vehicle was taken to a local dealer and the contact was informed that the gear shifter needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the local dealer; however, the failure was not duplicated. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 61,000.

The contact owns a 2019 Chevrolet Blazer. The contact stated that after shifting into park(P), a message displayed to "Shift to Park". The contact stated he attempted to shifting to another gear however, the vehicle inadvertently shut off. The contact stated that he shifted into park(P) and set the parking brake before turning off the vehicle. The vehicle was taken to the dealer but was not diagnosed nor repaired. The contact was also informed that the VIN was not under recall. The manufacturer was not contacted or notified of the failure. The approximate failure mileage was 17,000.

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.

Related recalls

Transmission complaints in other Blazer years