Service Charging SystemThis message will display when a problem with thecharging system has been detected. Have your vehicleserviced by your GM dealer.Service Electrical SystemThis message will display if an electrical problem hasoccurred within the Powertrain Control Module (PCM) orthe ignition switch. Have your vehicle serviced byyour GM dealer.Service Fuel SystemThe Powertrain Control Module (PCM) has detected aproblem within the fuel system when this messageappears. Have your vehicle serviced by your GM dealer.Service Idle ControlA problem with the idle control has occurred when thismessage displays. Have your vehicle serviced byyour GM dealer.Service Stability SystemIf your vehicle has StabiliTrak® , this message will bedisplayed if there has been a problem detectedwith StabiliTrak® .If this message comes on while you are driving, pulloff the road as soon as possible and stop carefully.Try resetting the system by turning the ignition off andthen back on. If this message still stays on, or comesback on again while you are driving, your vehicle needsservice. Have the StabiliTrak® system inspected byyour GM dealer as soon as possible. See StabiliTrak®System on page 4-12 for more information.Service Steering SystemYour vehicle may have a speed variable assist steeringsystem. See Steering on page 4-13.This message will be displayed if a problem is detectedwith the speed variable assist steering system. Whenthis message is displayed, you may notice that the effortrequired to steer the vehicle increases or feels heavier,but you will still be able to steer the vehicle.Service Theft SystemThis message means there is a problem with theimmobilizer. See Immobilizer on page 2-20 for moreinformation. A fault has been detected in the system,which means that the system is disabled and is notprotecting the vehicle. The vehicle usually restarts,however, you may want to take your vehicle to yourGM dealer before turning off the engine.3-67
