2008 GMC Yukon Hybrid Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 GMC Yukon Hybrid
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2008 GMC Yukon Hybrid ProblemsCheck Engine Light Due to Gas Cap Issue
A Loose or worn gas cap may cause Check Engine Light to illuminate.
The throttle position sensor (TPS) on the GMC Yukon Hybrid and GMC Yukon Denali Hybrid is notorious for failure which causes:
- Check engine light
- Reduced Power message
- OBD trouble code P2135
This issue is related to the throttle position sensor on the gasoline engine, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS. Note, this does not affect the hybrid drive system.
To correct this issue, the wiring harness, connector, and throttle position sensor must be inspected, tested, and/or replaced. The most common cause is a faulty TPS.
2008 GMC Yukon Hybrid QuestionsService Hybrid Soon dash light on? (3 answers)
109,000 miles on Truck...
Battery R & R by GMC $300 and now GMC did a diagnostic and want to replace a ECM board $700? I have driven the truck with light on for 1500 miles and it is running fine to my knowledge.
I have a Rear Main Seal Leak Also that I reported to GMC before 100,000? ...
car has not been started in a month. I charged the 12 volt battery already is there a way to jump the hybrid one
DEALER WANTED $150 REPAIR, I THOUGHT I COULD DO IT MYSELF, I OPENED THE HOOD, REMOVED TWO BOLTS WHICH LOSSEN THE WHOLE ASSEMBLY BUT STILL ATTACHED SOMEWHERE,CAN YOU HELP?
THANKS, JOEL W