See also:

Operation Using Advanced Keyless Functions
qOperational Range The system operates only when the driver is in the vehicle or within operational range while the advanced key is being carried. NOTE: When the battery power is low, or in plac ...

Specifications
Engine Electrical System *1 ex factory CAUTION. When cleaning the iridium plugs, do not use a wire brush. The fine particulate coating on the iridium alloy and platinum tips could be damaged. ...

Advanced Key Suspend Function
If one advanced key is left in the vehicle and a second advanced key is used to lock it, the functions of the advanced key left in the vehicle is temporarily suspended to prevent theft of the vehi ...