2003 Buick LeSabre Owner's Manual - Page 166

Security Light 1 I SECURlTy Cruise Control Light Your vehicle may have a content theft-deterrent alarm system.With this system; the SECURITY light will flash as you open the door (if your ignition is off). 1- SERVICE VEHICLE SOON This light will come on and stay on if your vehicle has certain non-emission related problems. For more information see Content Theft-Deterrent on page 2- 18. These problems may not be obvious and may affect vehicle performance or durability. Consult a qualified dealership for necessary repairs to maintain top vehicle performance. This light will come on briefly when the ignition is turned on to show that it is working properly. CRUISE The CRUISE light comes on when you set the vehicle's cruise control. See "Cruise Control" under Turn Signal/Multifunction Lever on page 3-5. 3-45