There are alot of reasons for that light to go one. Best bet is to take the car to auto zone, pep boys or some similar store and ask them to hook up the scan tool. They usually do it for free and can help you out with the parts to fix it. As a last resort if there isn't one near you a gm dealer can do it but they will prob. charge you.
This is not an uncommon problem with Sunfires or Cavaliers. The engine light is controled by several sensors. These sensors can be set off by just about anything, even just changing the oil. Before you take it anywhere to get the computer read, you may be able to save yourself some money by just unhooking the battery. If it is just a wonky sensor you should be able to unhook the battery and let the memory of the computer reset itself. The best way of doing this is unhooking the battery when you park your car for the night, and leave it unhooked for the entire night. The next morning, hook it back up and go about your business. If the light comes back on again, then you should take your car to a garage to have it checked out. If you haven't heard any noise or noticed any difference in the performance of your car, 9 out of 10 times, it's a wonky sensor.
This happened to me, it may sound silly but I was glad I didn't have to spend a dime!! Do this.....make sure your gas cap is closed all the way!! I actually read that tip in my Sunfire Manual.
your SES light will go off if you have a DTC that is pertaining to either emissions or engine performance issues there are many problems
It means your engine needs attention.
If a check engine light is flashing that means an engine cylinder misfire has been detected
What causes a 1997 Pontiac sunfire gt with a 2.4 liter engine to stall when stopped at a light
Fill your coolant reservoir and the light should turn off. Do it soon or your engine may over heat.
disconnect the negative battery cable for 10 mins this will reset computer it will do it for sure
it probably needs an O2 sensor they range from about 40-90 dollars
How to reset service light on a 2004 grand am
IT probably means that ur day time running lights and head light system is bad somewhere...
The "Service Engine" light is the computer's way of telling you that it has something to tell you. Connect a scanner and see what it says.
is the trac align light mean
There could be several reasons why a 2000 Pontiac Grand Am service engine light soon has come on. The engine may need a tune up, the timing belt may need changed, or even a bad fuel pump.
I have an 01 Pontiac sunfire and I have noticed that the check gages light comes on when the gas is low. I have never seen any other indicator come on for low fuel.