GM Service Manual Online
For 1990-2009 cars only

Stop Lamp Switch Replacement Stoplamp/BTSI Switch Lower

Removal Procedure


    Object Number: 153118  Size: SH
  1. Remove the I/P sound insulators, as needed for access.
  2. Remove the lower switch, twist counterclockwise to unlock and pull out of the retainer.
  3. Remove the electrical connectors from the switch.

Installation Procedure


    Object Number: 153118  Size: SH
  1. Slide the switch (with all the connections made) into the retainer.
  2. Press the switch in until the switch plunger is fully depressed into the switch barrel.
  3. Twist the switch clockwise until the travel stop has been reached (approximately 60 degrees). With the switch fully locked, the electrical connector will face the 3 o'clock position.

Stop Lamp Switch Replacement TCC/ABS Switch Upper

Removal Procedure


    Object Number: 153118  Size: SH
  1. Remove the upper switch. Twist the switch counterclockwise and pull out of the retainer.
  2. Remove the electrical connectors from the switch.

Installation Procedure

Notice: When installing the brake pedal switches it is very important that the brake pedal remain in the full up or at rest position or damage to the brake system and/or switch misadjustment may occur.


    Object Number: 153118  Size: SH

    Important: 

       • Connect the switch and install it as shown. Make all connections before installing. Be sure all connectors are firmly sealed and locked.
       • When pressing the switch into the retainer, do not apply a sideload to the switch.

  1. Slide the switch (with all the connections made) into the retainer.
  2. Press the switch in until the switch plunger is fully depressed into the switch barrel.
  3. Twist the switch clockwise until travel stop has been reached (approximately 60°). With the switch fully locked, the electrical connector will face the 3 o'clock position.