GMC Sierra
AC / heater Problems
We don't have a lot of GMC Sierra AC / heater problems on file — feel free to add yours here. The most common Sierra AC / heater problems occur at 96,000 miles.
Worst GMC Sierra AC / Heater Problems
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#1: Heater Comes On By Itself 2005 Sierra
- Average Cost to Fix:
- N/A
- Average Mileage:
- 92,000 mi
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#2: Heater Malfunctioning 2005 Sierra
- Average Cost to Fix:
- N/A
- Average Mileage:
- 100,000 mi