Service Idle ControlA problem with the idle control has occurred whenthis message displays. Have your vehicle serviced byyour GM dealer.Service Stability SystemThis message will be displayed if there has been aproblem detected with 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 4-11 for more information.Service Steering SystemYour vehicle may have a speed variable assist steeringsystem. See Steering on page 4-12.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 Suspension SystemThis message is displayed to indicate that thesuspension system is not operating properly.Have your vehicle serviced at your GM dealer.Service Theft SystemThis message means there is a problem with theimmobilizer. See Immobilizer on page 2-19 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.Service Tire Monitor SystemThis message will appear if the Tire PressureMonitor (TPM) system is not working properly. Haveyour vehicle serviced at your GM dealer as soonas possible. See Tire Pressure Monitor Systemon page 5-62 for more information.3-63
