The vehicle's keys have built-in transponder chips that prevent the engine from starting if a key has not been previously registered in the vehicle's on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prevent vehicle theft but does not guarantee absolute security against all vehicle thefts.
Vehicles without a smart key system: The indicator light flashes after the key has been removed from the engine switch to indicate that the system is operating.
The indicator light stops flashing after the registered key has been inserted into the engine switch to indicate that the system has been canceled.
Vehicles with a smart key system: The indicator light flashes after the engine switch has been turned off to indicate that the system is operating.
The indicator light stops flashing after the engine switch has been turned to ACCESSORY or IGNITION ON mode to indicate that the system has been canceled.
■System maintenance The vehicle has a maintenance-free type engine immobilizer system.
■Conditions that may cause the system to malfunction
Toyota CH-R Service Manual > Stop Light Switch: Installation
INSTALLATION
PROCEDURE
1. INSTALL STOP LIGHT SWITCH ASSEMBLY
(a) Insert the stop light switch assembly until the threaded sleeve hits
the pedal.
NOTICE:
When inserting the stop light switch assembly, support the pedal from
behind so that the pedal is not pushed in.
...
Toyota CH-R Service Manual > Smart Key System(for Entry Function): Operation Check
OPERATION CHECK
CHECK SMART KEY SYSTEM (for Entry Function) OPERATION
NOTICE:
Make sure that the smart key system (for Entry Function) has not been canceled
before performing this inspection.
(a) Check the entry unlock function (driver door, front passenger door).
(1) Perform a wireless lock ...