GM Service Manual Online
For 1990-2009 cars only

Tail Lamp Assembly and /or Backup, Sidemarker, Stop, Turn Signal Bulb Replacement LWB

Removal Procedure - Backup Light Bulb (LED tail lamp)

  1. Open the rear compartment lid.

  2. Object Number: 1939160  Size: SH
  3. Remove the rear compartment lid trim clips and remove the trim.

  4. Object Number: 1946831  Size: SH
  5. Remove the rear compartment lining clip and pull back the lining for access to the rear bulbs.

  6. Object Number: 1946882  Size: SH
  7. Remove the backup light bulb (1) and socket (2) from the rear tail lamp assembly by rotating the socket counterclockwise.
  8. Remove the backup light bulb (1) from the socket (2) by pushing and rotating the bulb counterclockwise.

Installation Procedure - Backup Light Bulb (LED tail lamp)

  1. Install the new backup light bulb into the socket by pushing and turning the bulb clockwise.

  2. Object Number: 1946880  Size: SH

    Important: The different-sized tabs on the bulb base and mating cut-outs in the tail lamp assembly allow the bulb to seat correctly.

  3. Install the backup light bulb (1) and socket (2) into the rear tail lamp assembly and secure by rotating the socket clockwise.
  4. Check all vehicle lights for correct operation.

  5. Object Number: 1946831  Size: SH
  6. Install the rear compartment lining and reinstall clip to secure lining.

  7. Object Number: 1939189  Size: SH
  8. Install the rear compartment lid trim and reinstall the clips to secure the trim.

Removal Procedure - Rear Indicator Bulb (LED tail lamp)

  1. Open the rear compartment lid.

  2. Object Number: 1939160  Size: SH
  3. Remove the rear compartment lid trim clips and remove the trim.

  4. Object Number: 1946831  Size: SH
  5. Remove the rear compartment lining clip and pull back the lining for access to the rear bulbs.

  6. Object Number: 1946878  Size: SH
  7. Remove the rear indicator light bulb (2) and socket (1) from the rear tail lamp assembly by rotating the socket counterclockwise.
  8. Remove the rear indicator light bulb (2) from the socket (1) by pushing and rotating the bulb counterclockwise.

Installation Procedure - Rear Indicator Bulb (LED tail lamp)


    Object Number: 1946835  Size: SH
  1. Install the new rear indicator light bulb (2) into the socket (1) by pushing and rotating the bulb clockwise.
  2. Important: The different-sized tabs on the bulb base and mating cut-outs in the tail lamp assembly allow the bulb to seat correctly.

  3. Install the rear indicator light bulb (2) and socket (1) into the rear tail lamp assembly and secure by rotating the socket clockwise.
  4. Check all vehicle lights for correct operation.

  5. Object Number: 1946831  Size: SH
  6. Install the rear compartment lining and reinstall clip to secure lining.

  7. Object Number: 1939189  Size: SH
  8. Install the rear compartment lid trim and reinstall the clips to secure the trim.

Removal Procedure - Stop/Tail Lamp Bulb (LED tail lamp)

Important: If the stop or tail LED's are faulty and do not illuminate, the tail lamp assembly must be replaced.

Refer to Removal Procedure - Tail Lamp Assembly (LED tail lamp) within this procedure for LED tail lamp replacement.

Removal Procedure - Tail Lamp Assembly (LED tail lamp)

  1. Open the rear compartment lid.

  2. Object Number: 1939160  Size: SH
  3. Remove the rear compartment lid trim clips and remove the trim.

  4. Object Number: 1946831  Size: SH
  5. Remove the rear compartment lining clip and pull back the lining for access to the rear tail lamp assembly.

  6. Object Number: 1946883  Size: SH
  7. Disconnect the electrical connector (1) from the rear tail lamp assembly.
  8. Remove nuts (2) that secure the rear tail lamp assembly, to rear body panel.
  9. Remove the tail lamp assembly from the vehicle.

Installation Procedure - Tail Lamp Assembly


    Object Number: 1946883  Size: SH

    Important: Make sure the rear tail lamp sealing surface is clean to avoid damage to painted vehicle surface and to prevent water leaks.

  1. Install the new rear tail lamp assembly to the vehicle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the nuts (2) that secure the rear tail lamp assembly to the rear body panel.
  4. Tighten
    Tighten the nuts to 3.0 N·m (27 lb in).

  5. Connect the electrical connector (1) to the rear tail lamp assembly.
  6. Check all vehicle lights for correct operation.

  7. Object Number: 1946831  Size: SH
  8. Install the rear compartment lining and reinstall clip to secure lining.

  9. Object Number: 1939189  Size: SH
  10. Install the rear compartment lid trim and reinstall the clips to secure the trim.