Question about 2004 Cadillac Deville
My service engine light has come on and stays on. My Cadillac has 120000 miles on it. It runs great. What could be the problem
Disconnect the battery, wait 5 minutes, then re-connect it. If that does not work, take it to the dealer. You may not have a problem other than the computer says it is time to turn it on. You may have noticed the same problem about 50-60K miles ago.
Posted on Feb 24, 2009
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Posted on Jan 02, 2017
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