GM Service Manual Online
For 1990-2009 cars only

Condition

Action

Failure to change fluid and filters

Change the fluid and install new filters. Refer to Automatic Transmission Fluid and Filter Replacement .

Excessive heat

Inspect the cooling system for restrictions and proper capacity.

Substandard fluid

Use recommended fluid. Refer to Transmission General Specifications .

Clutch/transmission failure

Overhaul the transmission.