Speedometer or Other Instrument Panel Gauge May Work Erratically on GMC Sierra 2500

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: 25,000 (25,000–25,000)
2 model years affected: 2003, 2004
3 people reported this problem
1 person shared problem details
Erratic Speedometer then froze at 140mph
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