Replace the battery with a new one if it is depleted.
You will need the following items:
Vehicles without a smart key system: CR1620
Vehicles with a smart key system: CR2032
Replacing the battery
Vehicles without a smart key system
1. Remove the cover.
To prevent damage to the key, cover the tip of the screwdriver with a rag.

2. Remove the battery cover.

3. Remove the depleted battery using a small flathead screwdriver.
Insert a new battery with the "+" terminal facing up.

4. When installing, reverse the steps listed.
Vehicles with a smart key system
1. Release the lock and take out the mechanical key.

2. Remove the cover.
Use an appropriate sized flathead screwdriver. Forceful prying may deform the cover.
To prevent damage to the key, cover the tip of the screwdriver with a rag.

3. Remove the depleted battery.
When removing the cover, if the battery cannot be seen due to the electronic key module attaching to the upper cover, remove the electronic key module from the cover so that the battery is visible as shown in the illustration.
Use an appropriate sized flathead screwdriver when removing the battery.
Insert a new battery with the "+" terminal facing up.
4. When installing, reverse the steps listed.

■Use a CR1620 (vehicles without a smart key system) or CR2032 (vehicles with a smart key system) lithium battery
■If the key battery is depleted The following symptoms may occur:
■Removed battery and other parts These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious injury.
■For normal operation after replacing the battery Observe the following precautions to prevent accidents:
Moisture may cause the battery to rust.
Air conditioning filter
Checking and replacing fusesToyota CH-R Service Manual > Hood: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT HOOD SUB-ASSEMBLY
(a) Check that the clearance measurements of areas "A" to "H" are within the
standard ranges.
Standard Clearance
Area
Measurement
Area
Measurement
A
...
Toyota CH-R Service Manual > Pre-collision System: Customize Parameters
CUSTOMIZE PARAMETERS
NOTICE:
When the customer requests a change in a function, first make sure that
the function can be customized.
Make a note of the current settings before customizing.
HINT:
The following PCS functions and the pre-collision system sensitivity setting
...