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GMC Sierra 1500 Hybrid Problems

Check Engine Light Due to Gas Cap Issue on GMC Sierra 1500 Hybrid

Problem Description and Possible Solution

A Loose or worn gas cap may cause Check Engine Light to illuminate.

(3 people reported this problem)

GMC Sierra 1500 Hybrid Vehicles With This Problem

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Average mileage: (–)
3 model years affected: 2007, 2009, 2010
Not Your GMC Sierra 1500 Hybrid Problem?
Brake problem? Or maybe a faulty head gasket cylinder?
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