GM Service Manual Online
For 1990-2009 cars only

Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp for GMC Truck Sierra - 2WD 2008

To replace one of these bulbs:


    Object Number: 1820400  Size: B2
  1. Remove the screws and lift off the lamp assembly.

    1. Object Number: 1836152  Size: B2

      Cargo Lamp

      Center High-Mounted Stoplamp Bulb (CHMSL)

  2. Remove the bulbs by turning socket counterclockwise and pulling the bulb straight out.
  3. Install the bulbs by pushing the bulb straight in and turning clockwise.
  4. Reinstall the lamp assembly and tighten the screws.