Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 192 (MIRROR SYSTEMS)DESCRIPTION AND OPERATIONOUTSIDE REARVIEW MIRROR SYSTEM COMPONENTS
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Outside Rearview Mirror System Components
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Outside Rearview Mirror System Components
WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
The power outside rearview mirror system consists of the following components:
- Driver door switch assembly (DDSA)--GMLAN device that contains the mirror select, fold and direction switches.
- Driver door module (DDM)--GMLAN device that controls the mirror horizontal, vertical and fold motors. Supplies a 5-volt and low reference to the mirror position sensors, interprets and stores their positions.
- Passenger front door module (PDM)--GMLAN device that controls the mirror horizontal, vertical and fold motors. Supplies a 5-volt and low reference to the mirror position sensors, interprets and stores their positions.
- Remote control door lock receiver (RCDLR)--GMLAN device that provides driver identification information to the DDM and PDM for memory recalls.
- Base or navigation radio--GMLAN device that provides driver identification setup and recall information to the DDM and PDM.
- Driver outside mirror--Contains horizontal, vertical and fold mirror motors, heating elements, auto dimming and also horizontal and vertical position sensors if equipped.
- Passenger outside mirror--Contains horizontal, vertical and fold mirror motors, heating elements, auto dimming and also horizontal and vertical position sensors if equipped.
- DRIVER DR MOD 10 A fuse
- FRT PASS DR MOD 15 A fuse
RENDER: 1.0x
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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.