How to Remove and Install the Shift Interlock Solenoid on Chevrolet Trailblazer?

The Park/Lock system makes it impossible to change the position of the shift lever out of Park unless the brake pedal is pressed and it does not allow the owner to turn the ignition key in the switch to the 'off' position unless the shift lever is fully in Park. When the car is turned on, a solenoid is engaged and fixed the shift lever into the park position; when the brake pedal is pressed, the solenoid is disengaged and the shift lever is free to cover the other positions on the gear. In systems there is usually a provision to manoeuvre the car out of 'Park' if the electrical system fails in one way or the other. To engage override, require the removal of shift lever trim boot and pull the override lever found at the upper right corner of the shift lever bracket forward to Facing the front end of the car. In order to replace a solenoid, the floor console must be removed, the electrical connector must be disconnected from the solenoid, the manual release lever has to be freed from its pivot bore and the solenoid must be taken off after removing its mounting screws. Removal and installation processes are analogous to each other; the difference is that installation is done in the opposite order.

Genuine Chevrolet Trailblazer Shift Interlock Solenoid

Shift Lock Actuator

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Chevrolet Trailblazer Solenoid, Automatic Transmission Shift Lock Control
Part Number: 88967140
$87.68 MSRP: $212.30
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Product Specifications
- Other Name: SOLENOID, Transmission Shift Brake Interlock
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L

Chevrolet Trailblazer Shift Interlock Solenoid

The Chevrolet Trailblazer Shift Interlock Solenoid provides protection for the SUV by locking the shifter until the proper signals are sent to the transmission computer. Found on models that use a PCM or dedicated TCM to manage gear changes, each Chevrolet Trailblazer benefits from the Shift Interlock Solenoid as it listens for inputs from the BOO brake switch and the TR range switch and then only releases the lever when the brake pedal is pressed and the selector is sitting in Park or Neutral. Internally, the Shift Interlock Solenoid consists of a small coil wrapped around a metal plunger, which becomes an electromagnet the instant current arrives. So the plunger slides and releases the shifter gate. Earlier units replicated the neutral safety switch concept of non-electronic gearboxes, simply breaking the starter circuit when the lever moved from Park, but the present fashion is part of the network of sensors that also provides input to pressure, shift, and TCC solenoids to provide a more seamless electronic supervision. Aside from that evolution, there are no distinct versions across the Chevrolet line, so every Trailblazer built with an automatic utilizes an electronically triggered Shift Interlock Solenoid with the same logic, providing reliable, youth-friendly protection against accidental movement, making the Shift Interlock Solenoid a quietly essential part of everyday driving.

Each OEM Chevrolet Trailblazer Shift Interlock Solenoid we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Trailblazer Shift Interlock Solenoid Parts Questions & Experts Answers

Solenoid, Automatic Transmission Shift Lock Control
88967140
Q: How to Remove and Install the Shift Interlock Solenoid on Chevrolet Trailblazer?
A:
The Park/Lock system makes it impossible to change the position of the shift lever out of Park unless the brake pedal is pressed and it does not allow the owner to turn the ignition key in the switch to the 'off' position unless the shift lever is fully in Park. When the car is turned on, a solenoid is engaged and fixed the shift lever into the park position; when the brake pedal is pressed, the solenoid is disengaged and the shift lever is free to cover the other positions on the gear. In systems there is usually a provision to manoeuvre the car out of 'Park' if the electrical system fails in one way or the other. To engage override, require the removal of shift lever trim boot and pull the override lever found at the upper right corner of the shift lever bracket forward to Facing the front end of the car. In order to replace a solenoid, the floor console must be removed, the electrical connector must be disconnected from the solenoid, the manual release lever has to be freed from its pivot bore and the solenoid must be taken off after removing its mounting screws. Removal and installation processes are analogous to each other; the difference is that installation is done in the opposite order.