STOPLAMP Switch

NOTE: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment may cause brake drag, heat buildup and excessive brake lining wear. Adjust the stoplamp switch and cruise control switch at the same time. See Fig 1 . The adjustment procedures for the stoplamp switch and the cruise control switch are identical.

With the brake pedal fully released, ensure that the stoplamp plunger is fully depressed against the brake pedal shanks. See Fig 2 . Insert the stoplamp switch and the cruise control switch (if equipped) into the brake pedal bracket. See Fig 3 .
Push the brake pedal forward in order to set the brake push rod into the booster. Pull the brake pedal to the rear, against the internal stop. The stoplamp switch and cruise control switch will be adjusted. Inspect the stoplamp for proper operation.

Fig 1: Locating Stoplamp Switch & Cruise Control Switch

Courtesy of GENERAL MOTORS CORP.

Fig 2: Switch Plunger Position (Brake Pedal Released)

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Fig 3: Switch Plunger Position (Brake Pedal Depressed)

Courtesy of GENERAL MOTORS CORP.