The shift interlock solenoid is essential because it is a safety device that prevents the driver from shifting out of the park gear when the brake pedal is disengaged.
Shift interlock solenoid operationThe shift interlock solenoid is a necessary vehicle feature that provides safety. This safety mechanism prohibits you from shifting out of the park gear except if the vehicle is in the "ON" position and the brake pedal has to be pressed down. The shift interlock solenoid is equipped on all new cars and works with other devices like the brake light switch and the neutral safety switch.
Common issues with a faulty shift interlock solenoidA faulty shift interlock solenoid can lead to the vehicle not shifting out of the park gear, making it impossible to move the car.