GM 25847531
Stoplamp Switch

To remove Brake Pedal assembly remove the left side of instrument panel insulator panel, in order to remove the communication interface module if equipped. Remove accelerator pedal assembly electrical connector, followed by the retaining clip and washer from the Brake Pedal. Remove the Brake Booster pushrod from the Brake Pedal and disconnect the electrical connector of the Brake Pedal position sensor. Unscrew the Brake Pedal bracket-to-steering column bracket bolt & the Brake Booster mounting-nuts & position the Brake Booster forward to clear the studs from the front of the dash. Unscrew the steering column bracket to cowl nut but do not take it out. When disconnecting the Brake Pedal bracket pilot bushings from the foam insulation panel, pull back and to the center of the vehicle Brake Pedal assembly, and then removing it off of the vehicle. Next, pull out the accelerator pedal assembly from the Brake Pedal bracket. For installation, connect the accelerator pedal assembly with the Brake Pedal bracket and then install the Brake Pedal assembly into the vehicle by allowing the Brake Pedal bracket pilot bushings to enter the panel of foam insulator. Position the booster studs through the dash panel, allow the Brake Pedal bracket to steering column bracket bolt to be tightened at 25 nm (18 lb ft), and loosely install the Brake Booster mounting nuts. Uk: apply a thin layer of lithium grease onto the pushrod pin Brake Pedal turn to the Brake Booster pushrod, attach the Brake Booster pushrod to the Brake Pedal, and install washer and retaining clip to the Brake Pedal. Apply more pressure on the vacuum Brake Booster mounting nuts to the point of 25 nm (18 lb ft) after fitting the steering column bracket to cowl nut and screwing it to the power of 25 nm (18 lb ft). Lastly, reconnect the Brake Pedal position sensor, electrical connection, connect the accelerator pedal assembly electrical connection and reinstall the communication interface module if equipped, and reconnect the left side instrument panel insulator panel.

Open the connection to the accelerator pedal component before removing the Brake Pedal retaining fastener with its washer. Remove the Brake Booster pushrod from the Brake Pedal and detach the Brake Pedal position sensor wiring plug. Separate both the Brake Booster mounting nuts and the Brake Pedal bracket-to-steering column bracket bolt. Shift the Brake Booster to the front and let the studs pass through dash openings. Keep the steering column bracket to cowl bolt tight. On removing Brake Pedal axis bushings from panel insulation retain the pedal assembly in moving direction toward vehicle middle. Install the accelerator pedal onto its brake connection bracket. Fit the Brake Pedal assembly inside the car while matching its Brake Pedal bracket pilot bushings to the foam cushion panel and setting the booster studs through the dash panel. Run the Brake Pedal bracket-to-steering column bracket bolt and set its torque at 25 n.m or 18 lb ft. Place the Brake Booster mounting nuts temporarily but apply lithium grease to the pushrod pin of the Brake Pedal before attaching the Brake Booster pushrod to the pedal. Plug in the washer and keep it in place while adding the Brake Pedal retaining clip. Hold the vacuum Brake Booster with 25 n.m (18 lb ft) torque at its mounting nuts. Secure the steering column bracket onto cowl nut and torque it with 25 n.m of force. Join the Brake Pedal position sensor electric wire and link the accelerator pedal assembly electric wire at their respective ports.