2005 Chrysler PT Cruiser Owner's Manual - Page 200

200 STARTING AND OPERATING WARNING! It is dangerous to shift the selector lever out of "P" or "N" if the engine speed is higher than idle speed. If your foot is not firmly on the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and when your right foot is firmly on the brake pedal. Brake/Transmission Interlock System This system prevents you from moving the gear shift out of Park and into any gear unless the brake pedal is pressed. This system is active only while the ignition switch is in the ON positions. Always depress the brake pedal first, before moving the gear selector out of PARK. Automatic Transaxle Ignition Interlock System This system prevents the key from being removed unless the shift lever is in PARK and the shift knob push button is out. It also prevents shifting out of PARK unless the key is in the OFF or ON positions. NOTE: If a malfunction occurs, the system will trap the key in the ignition cylinder to warn you that this safety feature is inoperable. The engine can be started and stopped but the key cannot be removed until you obtain service. Four Speed Automatic Transaxle The electronically controlled transaxle provides a precise shift schedule. The transaxle electronics are self calibrating; therefore, the first few shifts on a new vehicle may be somewhat abrupt. This is a normal condition, and precision shifts will develop within a few shift cycles.