Functional Description
RKE/VTSSIf the vehicle is equipped with Remote Keyless Entry (RKE), programming of additional transmitters and horn chirp are customer programmable features, The highline CTM provides for RKE and the Vehicle Theft Security System (VTSS). The base CTM is not able to provide these functions. The presence of either of these options dictates that the vehicle is equipped with a highline CTM. The VTSS system monitors the door ajar switches, liftgate (DN) and ignition switch to detect unauthorized entry into the vehicle. Once the vehicle is "armed", any one of these inputs can cause the VTSS system to be tripped. Once tripped, the horn and lights will pulse for 3 minutes and if an attempt is made to start the engine, it will start and stall. If the trigger condition is still present, the lights will continue to flash for an additional 15 minutes. After 15 minutes the system will stop pulsing the lights and return to the "armed" state. The cause of the last 4 alarm triggers is stored by the CTM and may be retrieved by the DRB III. The system may be disarmed by either an unlock command from a valid RKE key fob or by using a key in the lift gate or either door. Both front door key cylinders and the lift gate are equipped with disarm switches. There is also a VTSS lamp on the dash that provides information to the driver about the state of the vehicle theft system.
The RKE system is placed in the programming mode by the DRB, or by using the customer programming sequence. The system will store up to four key fob codes. Two fobs are supplied with the truck, additional fobs may be purchased through parts department. The additional fobs can be programmed with the DRB III, or by using the customer programming sequence. Through the DRB III, erasing and programming of one key fob without deleting the others is possible. If the key fob is stolen, all the fob codes stored previously may be erased to provide the owner of the vehicle with an extra sense of security.