The steering wheel position sensor may fail, resulting in the service stability message being displayed.Google+
Car Problem Reports
GMC Yukon Denali Steering Wheel Position Sensor May Fail
GMC Yukon Denali Problem
Average Mileage: 108,666 mi (85,000 mi - 141,000 mi)
Visitor, 2003 GMC Yukon Denali, 141,000 mi
Service stability message displays every timr the truck is started. I drove over some high compacted snow in my driveway. It's not fixed cause I'm not gonna let a dealer screw me!