GMC Sierra 1500 owners have reported 3 problems related to ignition (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Sierra 1500 based on all problems reported for the Sierra 1500.
The contact owns a 2009 GMC Sierra 1500. The contact stated when turning the key to off and removing it from the ignition, the engine would remain on. When braking to a stop, the vehicle would lunge forward and sporadically accelerate. The dealer was unable to duplicate the failure. The manufacturer was not contacted. The failure mileage was 21,000.
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The speedometer of my GMC Sierra 1500 is erratic when it is wet outside. When the vehicle is parked and the ignition key is in my pocket the speedometer reads anywhere from 40 to 50 mph. While driving the speedometer indicates up to 120 mph. How many people have to complain about this safety concern before something is done. A search of your database indicates many complaints. Help.
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all problems of the 2005 GMC Sierra 1500
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: the contact stated while driving various speeds, the engine stalled without warning and would not restart. The vehicle was towed to a dealer who determined the ignition harness needed replaced. After the ignition harness replacement, the problem persisted. The vehicle is currently awaiting further inspection by the dealer. The manufacturer was alerted.
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all problems of the 2004 GMC Sierra 1500
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