2003 Hummer H2FACTORY OEM SERVICE PROCEDURE

Stationary Windows Component Views

Fig 1: Ambient Air Temperature Sensor - Mirror
GM828997Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Forward Lamp Harness
2 Radiator Support
3 Ambient Air Temperature Sensor - HVAC
4 Ambient Air Temperature Sensor - Mirror
Fig 2: Inside Rearview Mirror Connector
GM826774Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Inside Rearview Mirror Connector
2 Vanity Mirror Lamp Connector - Left
3 Vanity Mirror Lamp Connector - Right
Fig 3: Rear Window Defogger Grid
GM827705Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Center High Mounted Stop Lamp (CHMSL) Connector
2 Rear Window Defogger Grid Connector
3 Rear Window Defogger Grid Connector
4 Splice S900
5 Rear Window Wiper Module - w/Motor
6 Door Lock Actuator-Liftgate
7 Liftgate Ajar Switch-Left
8 Liftgate Ajar Switch-Right
9 Splice S902
10 Splice S901
Factory Service Tools

Use the Manual With the Right Hardware

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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.

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