The steering wheel position sensor may fail, resulting in the service stability message being displayed.Google+
Car Problem Reports
Chevrolet Suburban 1500 Steering Wheel Position Sensor May Fail
Chevrolet Suburban 1500 Problem
Average Mileage: 117,000 mi (106,000 mi - 128,000 mi)
Visitor, 2004 Chevrolet Suburban 1500, 128,000 mi
Steering Wheel Position Sensor Fail,Took to shop, They changed out steering shaft (thought to be bent)and sensor. Checked wheel sensors. Light still comes on intermittenly, been back to shop 3 times. still not fix.