Why won't the dashboard warning lights go out after the car was serviced?

Answer by  Amber40 (24961)

Well there could be two reasons. When it was serviced the problem may have been fixed but the error codes where never cleared from the computer. Try clearing them with a code reader or by unhooking the battery. The other reason the lights may still be on is that the problem was not fixed and there is still trouble.

Answer by  chazeloff (324)

There should be a switch in your glove box that the technician was supposed to push after a oil change is preformed. I think it should be held 5 seconds.

Answer by  ladybud (1069)

Check engine light,o2 Sensor could have went bad or a pcv valve.Emission's control such as o2 sensor's and pcv valve will cause a car to throw code's,have it scanned free.

Answer by  icanoutfishyou (1148)

The most plausible reason is that the service station did not reset the codes after they performed the service; go back and have them check it out.