2011 GMC Savana 3500 Passenger Owner's Manual - Page 154

5-38 Instruments and Controls TRACTION CONTROL OFF If the vehicle has StabiliTrak, this message displays when the Traction Control System (TCS) is turned off. Adjust your driving accordingly. See StabiliTrak® System on page 9‑35 for more information. Anti-Theft Alarm System Messages SERVICE THEFT DETERRENT SYSTEM This message displays when there is a problem with the theft-deterrent system. The vehicle may or may not restart so you may want to take the vehicle to your dealer before turning off the engine. See Immobilizer Operation on page 2‑13 for more information. Service Vehicle Messages SERVICE A/C SYSTEM This message displays when the electronic sensors that control the air conditioning and heating systems are no longer working. Have the climate control system serviced by your dealer if you notice a drop in heating and air conditioning efficiency. Airbag System Messages SERVICE AIR BAG This message displays if there is a problem with the airbag system. Have your dealer inspect the system for problems. See Airbag Readiness Light on page 5‑17 and Airbag System on page 3‑24 for more information. SERVICE VEHICLE SOON This message displays when a non-emissions related malfunction occurs. Have the vehicle serviced by your dealer as soon as possible. WAIT TO START This message displays briefly when the theft-deterrent system has initially found incorrect conditions within the vehicle and is making a double check. If your vehicle does not start soon after, try to start it again. If it still does not start, have your vehicle serviced by your dealer. STARTING DISABLED SERVICE THROTTLE This message displays if the starting of the engine is disabled due to the electronic throttle control system. Have the vehicle serviced by your dealer immediately.