Awasome 05 Yukon Dead Battery Check Engine Light Ideas. Here’s how to clear the check engine light: Start the car with the dead battery like you normally would and leave the car engine at idle speed.
Web start the car with the working battery like you normally would and leave the engine running for a few minutes without accelerating. The mechanic had just recently seen the same problem in another denali in which they changed the battery and had no problems since. The battery light comes on.
