Toyota CH-R: Hybrid system precautions
Toyota C-HR (AX20) 2023-2025 Owner's Manual / For safety and security /
Hybrid system / Hybrid system precautions
Take care when handling the hybrid system, as it is a high voltage
system (about 600 V at maximum) as well as contains parts that
become extremely hot when the hybrid system is operating. Obey
the warning labels attached to the vehicle.
System components

The illustration is an example for explanation and may differ from the actual
item.
- Warning label
- Service plug
- Rear electric motor (traction motor)*
- Hybrid battery (traction battery)
- High voltage cables (orange)
- Front electric motor (traction motor)
- Power control unit
- Air conditioning compressor
*: AWD/4WD models only
■Running out of fuel
When the vehicle has run out of fuel and
the hybrid system cannot be started,
refuel the vehicle with at least enough
gasoline to make the low fuel level warning
light go off. If there is only
a small amount of fuel, the hybrid system
may not be able to start. (The standard
amount of fuel is about 8.5 L [2.2
gal., 1.9 Imp. gal.] when the vehicle is
on a level surface. This value may vary
when the vehicle is on a slope. Add
extra fuel when the vehicle is inclined.)
■Electromagnetic waves
- High voltage parts and cables on
hybrid electric vehicles incorporate
electromagnetic shielding, and therefore
emit approximately the same
amount of electromagnetic waves as
conventional gasoline powered vehicles
or home electronic appliances.
- Your vehicle may cause sound interference
in some third party-produced
radio parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has
a limited service life. The lifespan of the
hybrid battery (traction battery) can
change in accordance with driving style
and driving conditions.
■Starting the hybrid system in an
extremely cold environment
When the hybrid battery (traction battery)
is extremely cold (below approximately
-30ºC [-22ºF] ) under the
influence of the outside temperature, it
may not be possible to start the hybrid
system. In this case, try to start the
hybrid system again after the temperature
of the hybrid battery increases due
to the outside temperature increase etc.
■Declaration of conformity
This model conforms to hydrogen emissions
according to regulation ECE100
(Battery electric vehicle safety).
WARNING
■High voltage precautions
This vehicle has high voltage DC and
AC systems as well as a 12-volt system.
DC and AC high voltage is very
dangerous and can cause severe
burns and electric shock that may
result in death or serious injury.
- Never touch, disassemble, remove
or replace the high voltage parts,
cables or their connectors.
- The hybrid system will become hot
after starting as the system uses
high voltage. Be careful of both the
high voltage and the high temperature,
and always obey the warning
labels attached to the vehicle.
- Never try to open the service plug
access hole located under the left
side of the rear seat. The service
plug is used only when the vehicle
is serviced and is subject to high
voltage.

■Road accident cautions
Observe the following precautions to
reduce the risk of death or serious
injury:
- Stop the vehicle in a safe place to
prevent subsequent accidents.
While depressing the brake pedal,
apply the parking brake and shift
the shift position to P to stop the
hybrid system. Then, slowly release
the brake pedal.
- Do not touch the high voltage parts,
cables and connectors.
- If electric wires are exposed inside
or outside your vehicle, an electric
shock may occur. Never touch
exposed electric wires.
- If a fire occurs in the hybrid electric
vehicle, leave the vehicle as soon
as possible. Never use a fire extinguisher
that is not meant for electric
fires. Using even a small amount of
water may be dangerous.
- If your vehicle needs to be towed,
do so with the front wheels (2WD
models) or four wheels (AWD/4WD
models) raised. If the wheels connected
to the electric motor (traction
motor) are on the ground when
towing, the motor may continue to
generate electricity. This may cause
a fire.
- Carefully inspect the ground under
the vehicle. If you find that liquid
has leaked onto the ground, the fuel
system may have been damaged.
Leave the vehicle as soon as possible.
- Do not touch the battery if liquid is
leaking from or adhering to it. If
electrolyte (carbonate ester-based
organic electrolyte) from the hybrid
battery (traction battery) comes into
contact with the eyes or skin, it
could cause blindness or skin
wounds. In the unlikely event that it
comes into contact with the eyes or
skin, wash it off immediately with a
large amount of water, and seek
immediate medical attention.
- If electrolyte is leaking from the
hybrid battery (traction battery), do
not approach the vehicle. Even in
the unlikely event that the hybrid
battery (traction battery) is damaged,
the internal construction of
the battery will prevent a large
amount of electrolyte from leaking
out. However, any electrolyte that
does leak out will give off a vapor.
This vapor is an irritant to skin and
eyes and could cause acute poisoning
if inhaled.
- Do not bring burning or high-temperature
items close to the electrolyte.
The electrolyte may ignite and
cause a fire.
■Hybrid battery (traction battery)
- Your vehicle contains a sealed lithium-
ion battery.
- Never resell, hand over or modify
the hybrid battery. To prevent accidents,
hybrid batteries that have
been removed from a disposed
vehicle are collected through any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer. Do not dispose of the battery
yourself.
Unless the battery is properly collected,
the following may occur,
resulting in death or serious injury:
- The hybrid battery may be illegally
disposed of or dumped, and it is
hazardous to the environment or
someone may touch a high voltage
part, resulting in an electric shock.
- The hybrid battery is intended to be
used exclusively with your hybrid
electric vehicle. If the hybrid battery
is used outside of your vehicle or
modified in any way, accidents such
as electric shock, heat generation,
smoke generation, an explosion
and electrolyte leakage may occur.
When reselling or handing over your
vehicle, the possibility of an accident
is extremely high because the person
receiving the vehicle may not be
aware of these dangers.
- If your vehicle is disposed of without
the hybrid battery having been
removed, there is a danger of serious
electric shock if high voltage
parts, cables and their connectors
are touched. In the event that your
vehicle must be disposed of, the
hybrid battery must be disposed of
by any authorized Toyota retailer or
Toyota authorized repairer, or any
reliable repairer. If the hybrid battery
is not disposed of properly, it
may cause electric shock that can
result in death or serious injury.
NOTICE
■Hybrid battery (traction battery)
Do not carry large amounts of water
such as water cooler bottles in the
vehicle. If water spills onto the hybrid
battery (traction battery), the battery
may be damaged. Have the vehicle
inspected by any authorized Toyota
retailer or Toyota authorized repairer,
or any reliable repairer.