2002 GMC Envoy Owner's Manual - Page 334

Checking the Fluid Level Prepare your vehicle as follows: Then, without shutting off the engine, follow these steps: Locate the handle with the transmission and lock symbols for the automatic transmission dipstick in the engine compartment on the passenger's side of the vehicle. See "Engine Compartment Overview" in the Index for more information on location. 1. Flip the handle up and then pull out the dipstick and wipe it with a clean rag or paper towel. 2. Push it back in all the way, wait three seconds and then pull it back out again. D Park your vehicle on a level place. Keep the engine running. in PARK (P). D With the parking brake applied, place the shift lever D With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, position the shift lever in PARK (P). D Let the engine run at idle for three minutes or more. 6-19