You have to have a "code reader" to first read the trouble code and then to reset the trouble code in the vehicle's on board computer system. The "code reader" is available from most auto parts stores and will work on most newer vehicles.
reset service engine light
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.
reset service engine light on BMW 325
No reset switch on a Dodge Ram.
A Dodge Ram will have a check engine light appear when the engine needs to be serviced. You can reset this light by following the directions in your manual or by having your mechanic do it.
How do I reset the service engine light on a 2003 Chevy Trailblazer?
You reset the check engine light with a scan tool after repairing the failure.
You can disconnect the neg. battery cable but you also reset everything radio, clock etc.
how do I reset my service engine light on my 1999 ford f150
How does one reset service engine light on 2000 Nissan Quest Thanks Bill
Some cars it will reset after a certain number of starts. Other wise you will have to take it to a company that can hook your car up to a computer to reset it.
How to reset service light on a 2004 grand am