GM Service Manual Online
For 1990-2009 cars only

Checks

Action

Park pawl actuator assembly (43), manual shift shaft (40) and park pawl (36)

Inspect for damage or sticking. Refer to Manual Shift Shaft and Parking System Components Removal .

Transmission fluid temperature

Inspect if temperature is -40°C to -25°C (-40°F to -13°F). Allow the transmission fluid temperature to warm up.