I have a 2001 Chevy impala 3.8L. My headlights for some reason quit working. Both of them. The ony way I can get them to come on is by holding them on and it's the brights that will come on. As soon as I let go of the handle though they shut off. The parking lights and te turning signals work fine. If someone could help me out that would be greatly appreciated. Thanks a lot. Skyler

SOURCE: headlights wont come on, but parking lights work...i dont get it

Was sent in by another poster, just posting his results which fixed mine. Problem was relay $50.00 at GM only.

Check the relay module. 45 or 46. on the engine relay block. you can swap the two they are the same part number, then you will know. Dont start the engine, just check the lights. If it works replace the relay module. You may have to order the part from the parts store. Or go to the dealer to get it.

SOURCE: 2004 chevy cavalier headlight problem

Ain't no "might be", I believe the person who told you it was a ground issue is probably shaking his head over the fact that you have not acted on this. Take apart the sockets that plug the wiring harness off that way and make sure they have no excessive corrosion, not forgetting to check the condition of the headlight plug-in. Any ground strap you see along that harness needs to be removed, cleaned and fastened securely with a shot of anticorrosion gunk (your choice, I don't think it matters one damn bit what kind you use since it all should work). Get to work! Enjoy yourself and figure about an hour (+-) for the job.

SOURCE: 2001 chevy cavalier turn signal relay location

Above the brake pedal

SOURCE: 2001 Chevrolet Impala Door Locks Suddenly Quit Working

Passenger side of the fender under the hood - check the fuse relay box - about $12.00 a piece - they do go bad from time to time.
exchange the power lock relay with another one and test the locks.
then put the relay back and go to the autostore.

SOURCE: My driver side heated seat has quit working.But

more than likely it is the heating element in the seat that went bad. if there is a light on the switch it should be getting power and the heating elements under the seat coushin do go bad. it is not an uncommon thing.