GM Service Manual Online
For 1990-2009 cars only

Parking the Vehicle Manual Transmission

Before you get out of the vehicle, place the shift lever in R (Reverse) and firmly apply the parking brake.

For vehicles with the key access ignition, turn the ignition key to OFF/LOCK, press the release button and remove the key. See "Key Release Button" under Ignition Positions for more information.

For vehicles with the keyless access ignition, turn the ignition to LOCK/OFF and remove the keyless access transmitter.

If you are towing a trailer, see Towing a Trailer.