Check engine light on 2004 GMC Yukon Denali

How do you get the light to turn off?

by in Gardnerville, NV on September 14, 2010
2 answers
ANSWER by on September 14, 2010
after the vehicle fault is repaired, he light will be re set Roy
ANSWER by on October 04, 2010
Have you checked the gas cap? It may not be sealing properly.
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A Loose or worn gas cap may cause Check Engine Light to illuminate.
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...S ligths are on and when I hit a samll bump or pot hole on the street my car turns off and the check engine light goes on and my message screen says reduce engine power.
A Loose or worn gas cap may cause Check Engine Light to illuminate.
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