Defogger Switch

2008 Pontiac Grand Prix BaseSECTION Defogger Switch
WARNING: This page is about a different car, the 2008 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Defogger Switch Connector End View
GM820109Courtesy of GENERAL MOTORS CORP.
Defogger Switch

Pin Wire Color Function
1 GN Illumination Lamps Supply Voltage
2 BU Defogger Indicator Supply Voltage
3 WH/BK Ground
4 WH/BK Illumination Lamps Negative
5 - Not Used
6 BK Defogger Relay Control
Connector Part Information 
  • OEM: 90980-10797
  • Service: N/A
  • Description: BK
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.