2009 Cadillac DTS Owner's Manual - Page 220

SERVICE A/C SYSTEM This message displays when the air delivery mode door or the electronic sensors that control the air conditioning and heating systems are no longer working. Have the climate control system serviced by your dealer/retailer if you notice a drop in heating and air conditioning efficiency. System (ABS) Warning Light on page 3-57 for more information. If this happens, stop as soon as possible and turn off the vehicle. Restart the vehicle and check for the message on the DIC display. If the message is displayed or appears again when you begin driving, the brake system needs service. See your dealer/retailer as soon as possible. See Brakes on page 5-33 for more information. SERVICE BATTERY CHARGING SYSTEM This message displays when a problem with the charging system has been detected. The charging system light also displays on the instrument panel cluster. See Charging System Light on page 3-56 for more information. Have your vehicle serviced by your dealer/retailer. SERVICE BRAKE SYSTEM This message displays if the ignition is on to inform the driver that the brake fluid level is low. Have the brake system serviced by your dealer/retailer as soon as possible. SERVICE LANE DEPARTURE SYSTEM If your vehicle has the Lane Departure Warning (LDW) system, this message may display to indicate that the LDW system is not working properly. If this message remains on after continued driving, the system needs service. See your dealer/retailer. See Lane Departure Warning (LDW) on page 2-49 for more information. SERVICE BRAKE ASSIST This message displays if there is a problem with the brake system. The brake system warning light and the antilock brake system warning light may also be displayed on the instrument panel cluster. See Brake System Warning Light on page 3-56 and Antilock Brake 3-80