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
Theft prevention labelsToyota CH-R Service Manual > Lighting (int): Room Light Bulb
Replacement
REPLACEMENT
PROCEDURE
1. REMOVE NO. 2 ROOM LIGHT BULB
(a) Using a screwdriver with its tip wrapped in protective tape, disengage the
claws to remove the room light lens as shown in the illustration.
*a
Protective Tape
Remove in t ...
Toyota CH-R Owners Manual > Steps to take in an emergency: If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Stop the engine. Shift the shift lever to P, and set the parking brake.
Remove the mud, snow or sand from around the front wheels.
Place wood, stones or some other material under the fro ...