Keyless Entry System Description and Operation - Keyless Start

The keyless start portion of the keyless entry system allows vehicle starting, having only the transmitter as your key. The keyless start system use low frequency antennas in three different locations on the vehicle to determine the location of the transmitter. Multiple antenna are used to ensure complete coverage of the vehicle interior and rear compartment. When using the keyless start system, a programmed transmitter must be in the vehicle's interior, in the driver's pocket, purse, or briefcase. When the ignition mode switch is presses, the low frequency antennas send out a challenge to the keyless entry transmitter. If the challenge is met, the transmitter will respond, allowing the vehicle to start.

The keyless entry system has the following components:

• Vehicle key with integrated keyless entry transmitter
• Front console antenna
• Rear console antenna
• Rear compartment antenna
• Body control module (BCM)
• Keyless entry control module
• Immobilizer control module
• Remote control door lock receiver