System, Shift Interlock: Description: Description
Courtesy of CHRYSLER GROUP, LLC
| 1 - LOCK |
| 2 - ACC |
| 3 - ON |
| 4 - START |
The Brake Transmission Shifter/Ignition Interlock (BTSI) is a solenoid operated system that prevents the transmission gear shifter from being moved out of PARK without a driver in place.