How to Replace the Mirror on a 2003 Avalanche
- 1). Open up the door. Locate the triangular panel on the interior of the Avalanche, opposite the mirror. Pull the panel off the door by hand.
- 2). Remove the foam padding inside of the door. Unplug the power mirror harness. Roll down the window. Hold the mirror with one hand while unbolting it from the door using the 1/4-inch ratchet and socket. Pull the mirror out of the door.
- 3). Put the replacement mirror into the door and bolt it in place using the 1/4-inch ratchet and socket. Plug the power mirror harness into the mirror. Push the foam back into the door. Push the triangular panel onto the door until it clips in place.
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