Speedometer or Other Instrument Panel Gauge May Work Erratically on GMC Sierra 1500 HD

The speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault. The warranty has been extended on some of these units to 7 years or 70,000 miles.

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Average mileage: 129,000 (129,000–129,000)
2 model years affected: 2003, 2004
4 people reported this problem
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SPEEDOMETER AND OTHER GAGES WORK ERRATICALLY