Hybrid system precautions

Take care when handling the hybrid system, as it contains a high voltage system (about 650V at maximum) as well as parts that become extremely hot when the hybrid system is operating. Obey the caution labels attached to the vehicle.

*: AWD models only


*: AWD models only
1. Air conditioning compressor.

2. High voltage cables (orange).

3. Power control unit with DC/ DC converter.

4. Hybrid battery (traction battery).

5. Rear electric motor (traction motor)*.

6. Service plug.

7. Front electric motor (traction motor).

8. Caution label.

Hybrid battery air vents

There are air intake vents under


There are air intake vents under the rear seats for the purpose of cooling the hybrid battery (traction battery). If the vents become blocked, the hybrid battery may overheat, leading to a reduction in hybrid battery output.

Emergency shut off system

When a certain level of impact is detected by the impact sensor, the emergency shut off system blocks off the high voltage current and stops the fuel pump to minimize the risk of electrocution and fuel leakage. If the emergency shut off system activates, your vehicle will not restart. To restart the hybrid system, contact your Lexus dealer.

Hybrid warning message

A message is automatically displayed when a malfunction occurs in the hybrid system or an improper operation is attempted.

If a warning message is shown on


If a warning message is shown on the multi-information display, read the message and follow the instructions.

If a warning light comes on, a warning message is displayed, or the 12-volt battery
is disconnected

The hybrid system may not start. In that case, try to start the system again. If the
“READY” indicator does not come on, contact your Lexus dealer.

When refueling, the fuel filler door may take a few moments to open

As part of emission system operation, it may take up to 10 seconds for the fuel filler
door to automatically release after the opener switch is pressed. Before refueling is
possible, a message will be shown on the multi-information display.

Electromagnetic waves

High voltage parts and cables on the hybrid 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.

Consult your Lexus dealer before installing or removing 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.

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 minimum amount of fuel to add to make the low fuel level warning light go out is about 2.7 gal. [10.1 L, 2.2 Imp. gal.] when the vehicle is on a
level surface. This value may vary when the vehicle is on a slope.)

CAUTION:
High voltage and high temperature precautions The 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 and 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 caution labels attached to the vehicle.

Never try to open the service plug access


Never try to open the service plug access hole located under 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: Pull your vehicle off the road, shift the shift lever to P, apply the parking brake, and
turn the hybrid system off.

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 fluid leak occurs, do not touch it as it may be strong alkaline electrolyte from
the hybrid battery (traction battery). If it comes into contact with your skin or
eyes, wash it off immediately with a large amount of water or, if possible, boric
acid solution. Seek immediate medical attention.

If a fire occurs in the hybrid 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.

CAUTION:
If your vehicle needs to be towed, do so with all front wheels (for 2WD models) or
four wheels (for AWD 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 an electricity leakage leading to 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.

Nickel-metal hydride battery Your vehicle contains a sealed nickel-metal hydride battery. If disposed of improperly,
it is hazardous to the environment and there is a risk of severe burns and electrical
shock that may result in death or serious injury.

Emergency shut off system Carefully check to see if there are exposed high voltage parts or cables. Never touch the parts or cables.

NOTICE:
Hybrid battery air vents Do not put foreign objects over the air vents. The hybrid battery (traction battery)
may overheat or lose power and be damaged.

Clean the air vents regularly to prevent the hybrid battery (traction battery) from
overheating.

Do not wet or allow foreign substances to enter the air vents as this may cause a
short circuit and damage the hybrid battery (traction battery).

Do not carry large amounts of water such as an aquarium into the vehicle. If water
spills onto the hybrid battery (traction battery), the battery may be damaged.

Have the vehicle inspected by your Lexus dealer.

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