Seat heaters heat the front seats.
Operating instructions
Each time the switch is pressed, the operation condition changes as follows.
Hi (3 segments lit) → Mid (2 segments lit) → Lo (1 segment lit) → Off
The level indicator (amber) light up during operation.

■Operation condition
Vehicles without a smart key system
The seat heaters can be used when the engine switch is in the "ON" position.
Vehicles with a smart key system
The seat heaters can be used when the engine switch is in IGNITION ON mode.
Air outlets
Using the interior lightsToyota CH-R Service Manual > Can Communication System: Check Bus 1 Line for Short to GND
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and GND when there
is no resistance between terminal 23 (CA1H) of the central gateway ECU (network
gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 8 (CA1L) of the central
gateway ECU (network gateway ECU) and ...
Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Top-mounted
Air Conditioner Pressure Sensor): Terminals Of Ecu
TERMINALS OF ECU
AIR CONDITIONING AMPLIFIER ASSEMBLY
HINT:
Check from the rear of the connector while it is connected to the air conditioning
amplifier assembly.
Terminal No. (symbol)
Wiring Color
Terminal Description
Condition
Specified ...