Service stabilitrak and service traction control light both on

hmmmm, tastes like a wiring problem, if the tires are at correct inflation and has no reason to complain....how are your brakes? when your professional fitter of LPG tapped into the electrical system for the gig, must have jostled something loose-

FINALLY FIXED, "SERVICE STABILITRAK & TRACTION CONTROL DIAGNOSTIC PROBLEM: "SERVICE STABILITRAK", "SERVICE TRACTION CONTROL", "HARD SHIFT 1-2 GEARS"-(STABILITRAK TURNING OFF-CLUNK NOISE) "STABILITRAK OFF", "TRACTION CONTROL OFF" ---------------------------------------------------------------------------------- CAUSE: FUEL WAS 45% ETHANOL @ 85-(COSTCO GAS)-COMPUTER WENT INTO LIMP MODE CAUSING (AFM) TO GET STUCK AND NOT RESET COMPUTER. ---------------------------------------------------------------------------------- SOLUTION: DRAINED & CLEANED GAS TANK- CHANGED FUEL FILTERS (*ONLY IF NEEDED) CLEANED INJECTORS- RESET COMPUTER- FILLED GAS TANK WITH NO ETHANOL- (http://pure-gas.org/index.jsp) TOTAL AMOUNT WITH TAX: $444.86 ---------------------------------------------------------------------------------- REFERENCES (STABILITRAK CLUNK NOISE): http://chevroletforum.com/forum/silverado-fullsize-pick-ups-21/2010- silverado-stabilitrak-question-47580/ (AFM)-Definition: http://en.wikipedia.org/wiki/Active_Fuel_Management (ETHANOL): http://en.wikipedia.org/wiki/Common_ethanol_fuel_mixtures (GAS STATIONS WITHOUT ETHANOL): http://pure-gas.org/index.jsp

I was lucky. My problem was a misfire of plugs and a sensor switch. It cost me $10 for a new plug and $100 deductible. I had an extended warranty. What a blessing.

Well I have a 2009 and I have the tracción control service light on the ABS ON the only simple problem was the the ABS sensor on the rear right side was bad I replaced then both lights went OFF