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 > Vehicle Stability Control System: System Description
SYSTEM DESCRIPTION
FUNCTION DESCRIPTION
(a) Enhanced-VSC
(1) Effects cooperative control with the power steering ECU assembly in order
to provide steering assist in accordance with the operating conditions of the vehicle.
(b) Anti-lock Brake System (ABS)
(1) The ABS helps prevent the wheels f ...
Toyota CH-R Service Manual > Back Door Outside Garnish: Removal
REMOVAL
PROCEDURE
1. REMOVE PACKAGE TRAY TRIM PANEL ASSEMBLY (w/ Package Tray Trim)
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2. REMOVE TONNEAU COVER ASSEMBLY (w/ Tonneau Cover)
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3. REMOVE BACK DOOR TRIM UPPER PANEL ASSEMBLY
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4. REMOVE BACK DOOR SIDE GARNISH LH
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5. R ...