If you mean Service Engine Soon light and you car is newer then 1996, that is an idicator that your car has self diagnosed a problem with something in the drivetrain that needs attention. It can be serious or it can simple, but like anything, the longer you ignore it, the worse the problem can become. I assume that you mean that it doesn't need servicing as it pertains to oil changes. To find out what the problem is, go to you local shop, one that you trust hopefully, and they can plug it in to a diagnosis computer and figure it out. I would expect to pay 1/2 to 1 hour of shop labor for the hookup. If the car is earlier then 1996, the process can be the same, it just depends on the make and model.
hi what is this
It means you need to get your oil/filter changed.
you need to have it checked. i have an 03 and there was a TSB regarding a faulty switch. it may be as simple as that.
You will need a scanner that can display the fault codes set in the module. The codes will help you determine the problem.
Brake servicing can mean a number of things. It can mean your brakes need to be replaced, or they need to fixed up, or simply cleaned. Basically an kind of service involving your brakes.
ABS Brakes need servicing.
If an check engine light does not come on it is a good thing. When your check engine light comes on, it means you need service done on your vehicle.
get your airbag looked at it might need servicing
You need to have it checked for codes. You can then diagnose the cause.
multiple reason. you need a scanner to find out what the code is that turned the light on. auto zone does this for free.
If your engine light has come on for your 1993 GMC Jimmy, you need to take you car in for service. You should make sure that you have enough oil in your car.
It's probably misfiring. You would need to diagnose why.
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool.