2012 Jeep Wrangler Owner Manual - Page 384

382 STARTING AND OPERATING Brake/Transmission Shift Interlock System This vehicle is equipped with a Brake Transmission Shift Interlock System (BTSI) that holds the shift lever in the PARK position unless the brakes are applied. To move the shift lever out of the PARK position, the ignition switch must be turned to the ON/RUN position (engine running or not) and the brake pedal must be pressed. The electronically-controlled transmission provides a precise shift schedule. The transmission 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 hundred miles (kilometers). Shifting from DRIVE to PARK or REVERSE should be Five-Speed Automatic Transmission done only after the accelerator pedal is released and the The shift lever position display (located in the instrument vehicle is stopped. Be sure to keep your foot on the brake panel cluster) indicates the transmission gear range. You pedal when moving the shift lever between these gears. must press the brake pedal to move the shift lever out of the PARK position (refer to "Brake/Transmission Shift Interlock System" in this section). To drive, move the shift lever from PARK or NEUTRAL to the DRIVE position.