Chevy Lumina
Chevy S-10
Turn Signals and Hazard Lights

How do you replace the turn signal switch located on a 1995 Chevy Lumina?

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September 12, 2011 9:05PM

This is a nightmare, only try it if you are a very qualified auto mechanic.The Signal/High Beam Cluster housing-body plastic is usually defective/inferior and will stretch causing the points to arc, casuing heat and smoke/fire, needing replacement. I replaced mine successfully. Disconect the battery(big job on A Lemona). Remove the horn pad. Get a steering wheel puller and remove the wheel. Disassemble the steering column covers (carefull unscrew and pull apart the snap-together parts), and lower dash. remember how it goes back together and keep all parts or your self-cancelling signals feature wont work. The Switch is not a simple local wiring bus/plug and play affair. Its wiring loom leads down to the Main Harness Bus Connector which connects all the local bussworks to one connector. This main conncector is "self disconnecting" when the center bolt is loosened (but still needs a little pull apart). All the sub- busses' connectors must be sistered together paralell on re-assembly. The hard part is re-conncecting all the connectors simultaneously to the main connector(like 60+ delicate connector pins, one bends- and it will short out the whole harness)(more smoke and fire). It is supposed to be self-centering when the center bolt is re-fastened, but you have to be really carefull keeping things lined up straight. Also, If I remember Allen wrenches are needed as well as torx tools, and some are tamper-proof torx that require the center nub deleted with a small punch. I Advise you take it to a qualified mechanic, let them assume the risks, I WOULD NOT DO IT AGAIN MYSELF. Or move to Florida, no one there uses signals anyway.


There is a special tool that is required to remove the steering wheel lock plate.


As stated above PAY CLOSE ATTENTION TO HOW EVEYTHING COMES APART, YOU WILL NEED TO PUT ALL BACK TOGETHER EXACTLY THE SAME WAY. Now that I made that clear, a new switch can be purchased and then go through the cable pulling and reinserting OR remove the 3 screws holding the switch in place; there are 3 small tabs around the outside of the switch assembly; carefully push each 1 back to release the 2 halfs of the switch; once the switch is pulled apart into 2 pieces take a piece of fine grit sand paper or emery cloth and remove the corosion from each of the contacts (this will renew the operation of the switch; you can replace the clear grease like substance if desired or just put the switch back together without the lubricant (the lubricant is to help prevent corrosion over time). Reassemble the switch and resinstall all the parts to get all back together again. You might try the turn signals before reassembly.