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Here is the procedure to check the trans fluid. You will need a compatible sacn tool to monitor the trans temp.

Transmission Fluid Level Checking Procedure and Application Chart

MODEL

• All with the ZF and GM automatic transmission

SITUATION

• Checking the fluid level may be necessary if there is evidence of a leak, a complaint related to fluid level or in the event repairs are made to the transmission.

PROCEDURE
Fluid Level Checking Procedure for all Transmissions without a Dipstick:

1. The transmission temperature must be between 30°C and 50°C before checking can begin. Use the DIS or the MODIC to determine the transmission temperature.
2. The vehicle must be level and without load. With the engine running, switch on the air conditioning. This will increase the idle speed and ensure that all oil passages in the transmission are filled with oil.
3. Step on the brake firmly, apply parking brake fully and move the selector lever through each gear position, pausing briefly in each gear.
4. With the engine running and the selector lever in Park position, remove the filler plug located on the transmission (see picture for location). If a small stream of oil runs out, the fluid level is correct.
5. If no oil runs out when the filler plug is removed, the fluid level is too low. Add oil until it starts to overflow.
6. With the engine running, reinstall the oil filler plug and tighten to proper torque. (Refer to section below for proper tightening torque)