GMC Sierra 2500 owners have reported 1 problem related to electrical failure (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 2500 based on all problems reported for the Sierra 2500.
Vehicle exhibited "low coolant" warning in dic after gm def recall was performed. "low coolant" warning returned after multiple repairs to the coolant system from servicing dealer. Failure of coolant system resulted in a failure of the head gasket and water intrusion into the #7 cylinder. Vehicle is 12 months old and had 15,000 miles at the time of failure. Vehicle also exhibited multiple electrical system failures including:
dead battery
no start condition multiple times
trailer brake system failure
engine hour meter failure
intermittent electrical failures from door locks, lights, radio. Selling dealer recalibrated ecm twice, but electrical issues are still present.
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all problems of the 2011 GMC Sierra 2500
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