Resolving the Chevy 'No Park' System

June 21, 2023
This bulletin applies to 2016-2019 Chevy Corvette vehicles equipped with an automatic transmission. Some customers may complain that the vehicle will not obtain Park at times.
This bulletin applies to 2016-2019 Chevy Corvette vehicles equipped with an automatic transmission. Some customers may complain that the vehicle will not obtain Park at times.

The condition may be caused by a damaged parking pawl and/or parking pawl actuator. The transmission may have experienced a park engagement while the vehicle was in motion or the transfer case obtained a neutral state. Attempt to duplicate the no-park condition by operating the shift lever.

The shift lever should move freely through all positions. Check the transfer case for proper operation in each range. Inspect the shift cable system and mounting bracket for any signs of visible damage or being mis-routed. If all of these conditions are OK, remove the transmission oil pan and valve body. Remove the park pawl actuator bracket and discard the bolts. Remove the park pawl actuator.

Inspect for damage, bent rod or incomplete travel of the actuator. Inspect the park pawl for damage. If damage is present, replace the park pawl actuator, park pawl, main shaft detent lever hub pin, park pawl actuator bracket, park pawl actuator bracket bolts and output carrier. The transmission should be disassembled and cleaned thoroughly.

Sponsored Recommendations

Service Done Right #27: Step-by-Step Installation of Duralast Loaded Struts and Shocks

Following the proper installation process when repairing any vehicle is key to keeping your vehicle safe and on the road. Today, Richard Morgan walks us through the correct installation...

Why Pentastar Oil Filter Housings Leak

Video: Learn why oil filter housings on the Pentastar V6 are prone to leaking and how you can offer your customers a real solution to this problem.

VVT Components; Why They're a Smarter Choice over OE and Other Aftermarket VVT Solenoids

Video: More and more vehicles are entering service bays with variable valve timing issues. Learn why reaching for Standard and Blue Streak VVT Components makes more sense than...

Emissions Training Series

Standard Professional Video Training Series: Emission Control Components. This all-new video training series has been created specifically for professional technicians and offers...

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!