- Shifter Interlock: The shifter interlock is a safety feature that prevents the vehicle from being shifted out of park unless the brake pedal is depressed. Make sure that you are firmly pressing the brake pedal when trying to shift out of park.
- Brake Light Switch: The brake light switch is responsible for sending a signal to the transmission that the brake pedal is depressed. If the brake light switch is faulty, the transmission may not receive the signal and will not allow the vehicle to shift out of park.
- Transmission Control Module (TCM): The TCM is the electronic control unit that manages the transmission. If the TCM is faulty, it may send incorrect signals to the transmission, preventing it from shifting out of park.
- Mechanical Linkage: The shifter is connected to the transmission through a mechanical linkage. If the linkage is damaged or misaligned, it may prevent the vehicle from shifting out of park.
- Parking Brake: Make sure that the parking brake is fully disengaged.
- Low Battery: A low battery can cause a variety of electrical problems, including preventing the vehicle from shifting out of park.
If you are unable to resolve the issue yourself, you should take your Chrysler Pacifica to a qualified mechanic for further diagnosis and repair.
