2006 Denali P/u Anti-theft System Problem

By Da Bear
February 22, 2011 in Ask A GM Technician

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Da Bear

Posted February 22, 2011

While driving at speed (tends to occur at more elevated speeds, say > 50 mph) the theft-deterrent system warning light will illuminate while at the same time my fuel gauge will suddenly read empty along with the low fuel warning light illuminating. This does not appear to be a function of driving / road conditions. Also does not appear to be related to the grade of gas I'm running.

At the same time the rig will make a slight shuddering sound / vibration which can be felt in the cab as well as through the steering column.

I've had the rig to my mechanic several times – without him successful at finding any error code record of a problem.

Any insight someone can provide would be greatly appreciated!

Thanks!

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