Power mirrors on the 2002 Buick Lesabre were an option depending on the trim package you chose. However, even if you opted not to have power mirrors you can install them on your own without getting involved with any wiring. Buick uses the same wiring schematics for all 2002 Lesabres, regardless of the trim level. This means the wire harness connector is the same for all models, you just have to replace the side view mirror enclosures with enclosures equipped with the electric motors.
Tools Used: Tools, 9/16 socket, Ratchet, Mirror housing with motors, Mirror cover with adjustor
Install Power Mirror
Locate the bolt cover on the inside of the door. The cover is directly opposite the mirror housing on the outside of the door. It covers the mounting bolts for the mirror and the factory wire harness for the mirror’s motor. To remove the cover, pull out on it.
Remove the three nuts that secure the mirror to the side of the door with a 9/16 socket and ratchet. The mirror housing studs remove with the mirror. Take caution when pulling the old mirror out of the door. Do not scratch the paint.