Stability control light constantly come on for repair,second repair on fuel system, diagnostic shows problem in steering and right wheel.
2006 GMC Envoy driver assistance complaints
Page 2 of 2: complaints 11 to 13 of 13, newest first, as owners wrote them.
At the stop light vehicle stop running engine light stabilitrak light and loss power light came on. Got home twisted the fuel cap a couple of times cranked it up and it went of. This is the second time it has happened.
Stabilitrac and/or ABS system engages when not necessary such as driving on dry, straight pavement at highway speeds. Causes vehicle to decelerate suddenly and almost lose control when brakes activate and motor retards. Electrical system also fluxuates (altimeter bounces from low to hi) causing a loss of power with associated loss of steering, lights, braking controls, at any speed. Problem has been increasing (frequency & severity) from july, 2009 to present (jan, 2010). Dealer shop did stabilitrac tsb firmware upgrade (and charged me) w/o correcting problem, also retested and "could not find anything wrong":battery is new but problem persists. 55,000 miles, mostly highway/improved roads. This occurs every time, literally, the vehicle is moved: 30-40 miles/day. 1/6/10 engine developed "low growl" noise and RPM dropped from ~800rpm to ~600rpm at parked idle w/o any apparent cause. Now idle at start is normal, but within 1-2 minutes drops and remains low with growl noise.
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