Causes of Brake Shifts Brake shift interlock failure is most commonly caused by problems in the trailer plug or a shorted-out stop lamp bulb. Gear shift accidents are usually due to children who have accidentally moved the vehicle into gear, a circumstance in which a brake shift interlock could have easily prevented.
Where is the brake shift interlock?
A Brake Transmission Shift Interlock Device (BTSI) is a small part electrical, part mechanical device that was installed in many vehicles as early as 1989. This device is attached to the Shifter assembly and prevents the vehicle from being shifted out of “park” unless the driver’s foot is on the brake pedal.
What does a shift interlock actuator do?
The shift interlock actuator prevents a vehicle from shifting out of park until the driver presses the brake. The Problem: When an OE shift interlock actuator becomes damaged or stuck, it will prevent a driver from shifting their vehicle out of park.
How does a shift interlock work?
The shifter interlock solenoid prevents you from shifting from Park to Drive without first hitting the brake. When you press the brake pedal, the solenoid receives a signal that tells it to release the mechanical lock on the shifter.
How do I bypass shift lock?
Here are the steps for employing the shift lock release.
- Engage the emergency brake / parking brake.
- Find the shift lock override slot.
- Insert a key, nail file, or screwdriver into the slot.
- Press the brake pedal while you are pressing down on the override,
- Shift gears as you normally would.
How much does it cost to fix a shift interlock?
Shift Interlock Solenoid Replacement pricing for various cars
| Cars | Estimate | Average Dealer Price |
|---|---|---|
| 2008 Dodge Ram 1500 | $807 | $819.97 |
| 2008 Ford Escape | $246 | $264.97 |
| 2014 Chevrolet Camaro | $170 | $187.36 |
| 2013 Acura TL | $219 | $231.80 |
What is a shift interlock cable?
Shift Lock Cable functions to prevent accidents caused by shifting of gears in a state where the brakes are not actuated by the driver’s careless operation in an auto transmission vehicle. A cable functions as a safety device that prevents the gear from being changed at the “P (parking)” position without braking.
