Because your vehicle needs a certain service. That service will be listed in your owner's manual.
How to reset service light on a 2004 grand am
There may be something worng with the main prossesor
A reset Engine Service Light comes on when an issue comes up with in the engine. This light can be reset by a tech or by fixing the problem.
take the car to auto zone, get them to put their machine on the car to tell you the reason for the check engine light.
i have replaced the plugs and wires and my service engine light comes again in 2004 land rover discovery
There are a couple of ways to reset the Service Engine Soon light on a Suzuki Grand Vitara. The easiest way is to get a scan tool from your local auto parts store. Using the scan tool will reset the service engine light. Disconnecting your vehicle's battery is another way that often works to reset the Service Engine Soon light.
on some cars, the service engine light comes and no code is present when a headlight is out
Service required is the oil change reminder. Service engine soon would be the check engine light.
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.
The service engien light (check engine) comes on when the engine computer detects a malfunction and sets a code. You need to have the codes read, diagnosed and repaired to keep the light off.The service engien light (check engine) comes on when the engine computer detects a malfunction and sets a code. You need to have the codes read, diagnosed and repaired to keep the light off.
service engine soon light comes on
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.