6.0

fairly significant
Typical Repair Cost:
No data
Average Mileage:
14,000 miles
Total Complaints:
1 complaints

Most common solutions:

  1. the seat memory control module can kill the battery (1 reports)
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This problem may be covered under warranty. Ask your GMC dealer.

problem #1

Jan 032022

Sierra 2500 Denali 6.6L V8 Gas

  • Automatic transmission
  • 14,000 miles

The truck would not start after sitting for a day or two. Fob would not open the doors or when using the key and pressing the push start, nothing happens. I took it to the dealer after the second time this happened and they replaced the battery. A week later, the same thing happens. This time I jumped the truck and drove it directly to the dealer, and they are stumped... I will update this when there is a fix.

- Michael S., Painesville, US