2010 GMC Yukon XL 2500 Problems
RepairPal has identified the most common problems with the 2010 GMC Yukon XL 2500 based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.
The 2008-2014 GMC Yukon XL 2500 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 related to the throttle position sensor, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS.
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.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.