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2012 GMC Sierra 3500 HD Problems

Find the most common issues based on 2012 GMC Sierra 3500 HD owner complaints.

Most Common 2012 GMC Sierra 3500 HD Problems

The GMC Sierra 3500 HD uses a throttle position sensor (TPS) which commonly fails and causes: Check engine light illumination Reduced Power message OBD trouble code P2135 This issue is rela...
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Common 2012 GMC Sierra 3500 HD Repair Estimates

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Known 2012 GMC Sierra 3500 HD Problems & Complaints

The GMC Sierra 3500 HD uses a throttle position sensor (TPS) which commonly fails and causes: Check engine light illumination Reduced Power message OBD trouble code P2135 This issue is rela...
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
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