GM Service Manual Online
For 1990-2009 cars only

Condition

Action

Low fluid

Adjust the fluid level. Refer to Transmission Fluid Check .

Leaking at solenoid assembly

Replace the solenoid assembly. Refer to Control Valve Solenoid Replacement .

Low pressure

Repair the transmission.

Faulty solenoid - leaking

Replace the solenoid. Refer to Control Valve Solenoid Replacement .