2010 Cadillac CTS Owner's Manual - Page 158

4-48 Instruments and Controls Immobilizer Operation (Keyless Access) on page 1‑25 for more information. Have the climate control system serviced by your dealer/retailer if you notice a drop in heating and air conditioning efficiency. Airbag System Messages Service Air Bag This message displays when there is a problem with the airbag system. Have the vehicle serviced by your dealer/retailer immediately. See Airbag Readiness Light on page 4‑21 for more information. Start Aborted By Theft Deterrent This message displays if there is a communication problem between the keyless access system and the vehicle. The vehicle cannot be started when this message displays. See your dealer/retailer for service. Service Vehicle Soon This message displays when a non-emissions related malfunction occurs. Have the vehicle serviced by your dealer/retailer as soon as possible. Anti-Theft Alarm System Messages Service Theft Deterrent System This message displays when there is a problem with the theft-deterrent system programmed in the key. A fault has been detected in the system which means that the system is disabled and it is not protecting the vehicle. The vehicle usually restarts; however, you may want to take the vehicle to your dealer/retailer before turning off the engine. See Immobilizer Operation (Key Access) on page 1‑24 or Theft Attempted This message displays if the theft-deterrent system has detected a break-in attempt while you were away from the vehicle. See Anti-Theft Alarm System on page 1‑23 for more information. Tire Messages Service Tire Monitor System This message displays if a part on the Tire Pressure Monitor System (TPMS) is not working properly. The tire pressure light also flashes and then remains on during the same ignition cycle. See Tire Pressure Light on page 4‑29. Several conditions may cause this message to appear. See Tire Pressure Monitor Operation on page 9‑69 for more information. If the warning 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.