My dilemma is whether to tow it or drive it to the nearest Hummer dealer. Closest dealer is 153 miles away. I talked to the Hummer dealer and they say "drive it", but the distance worries me. I asked them if the local GMC truck dealer could perform warranty work and gave an emphatic "NO", which I find ridiculous...
Tow it, drive it, or diagnose and fix myself(If i were a betting man I'd say O2 sensor)?
Do not have Onstar, but am thinking I may want to sign up for just that feature.
UPDATE: Called the local GMC dealer with whom I have a good relationship. They say, yes, they can perform warranty work on Hummers and have successfully done so in the past. So I schedule an appt and head on down the road.
And then...the check engine light goes off and truck returns to driving as normal. So, moot point now, but very odd. have started it and turned it off a few times now and the light is not coming back on. Strange.
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