How do you do a hard reset on a 2002 cheverolet cavalier. The headlights were just replaced. when you turn the car on you hear a clicking noise then the service light comes on.

SOURCE: 2002 sunfire Drl problem

check wiring in front of washer bottle and harness will lead to passanger side follow it open up harness ussually broken wires inside causing dim or no headlights.

SOURCE: trouble code (MIL) reset

just 10 flashes means that the OBD readiness monitors have not all been set.. when the battery was disconnected it reset the monitor status to not ready..

SOURCE: How to reset the service light on a chevy cavalier, 2002?

The CHANGE OIL LIGHT can be rest by putting on the key with engine off, and pumping the gas pedal up and down completely 3X in 5 seconds. Sould clear then, if nec. repeat.

SOURCE: My 2002 Jeep Grand Cherokee Laredo won't start.

Check that your battery has 12v, check and clean terminal contacts. If battery has less than 12v have it charged and load tested. 9 of 10 times this will get you going...if not, I'll give you the rest of testing later if you need it.

SOURCE: 02 Chevy Cavalier - Fast Clicking Noise When I Turn Key

if you recently replaced the battery and are continuing to have this issue, i suggest that you clean the battery terminals.

obviously your car is getting power (fast clicking indicates this) so you will need a good battery jump. also check your cables, sometimes your cables may not supply sufficient power for the recharge