2004 Pontiac Aztek Owner's Manual - Page 100

Automatic Transaxle Operation Maximum engine speed is limited when you're in PARK (P) or NEUTRAL (N), to protect driveline components from improper operation. If you cannot shift out of PARK (P), ease pressure on the shift lever - push the shift lever all the way into PARK (P) as you maintain brake application. Then hold the button on the lever and move the shift lever into the gear you wish. See Shifting Out of Park (P) on page 2-28 in this section for more information. {CAUTION: It is dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. There are several different positions for your shift lever. PARK (P): This gear position locks your front wheels. It's the best position to use when you start your engine because your vehicle cannot move easily. Ensure the shift lever is fully in PARK (P) before starting the engine. Your vehicle has an automatic transaxle shift lock control system. You must fully apply your regular brakes before you can shift from PARK (P) when the ignition key is in ON. As you step on the brake pedal, while in PARK (P), you may hear a click from the solenoid of the system. This ensures that the system is operating properly. Do not leave your vehicle when the engine is running unless you have to. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure your vehicle will not move, even when you are on fairly level ground, always set your parking brake and move the shift lever to PARK (P). See Shifting Into Park (P) on page 2-26. If you are pulling a trailer, see Towing a Trailer on page 4-42. REVERSE (R): Use this gear to back up. 2-22