Toyota Highlander (2018 year). Manual - part 157

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8-2. Steps to take in an emergency



3.5 L V6 (2GR-FKS) engine

Connect a positive jumper cable clamp to the positive (+) battery
terminal on your vehicle.

Connect the clamp on the other end of the positive cable to the
positive (+) battery terminal on the second vehicle.

Connect a negative cable clamp to the negative (-) battery termi-
nal on the second vehicle.

Connect the clamp at the other end of the negative cable to a
solid, stationary, unpainted metallic point away from the battery
and any moving parts, as shown in the illustration.

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8-2. Steps to take in an emergency

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Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the battery of your vehicle.

Vehicles with a smart key system: Open and close any of the doors
of your vehicle with the engine switch off.

Vehicles without a smart key system: 
Maintain the engine speed of the second vehicle and turn the
engine switch to the “ON” position, then start the vehicle's engine.

Vehicles with a smart key system: 
Maintain the engine speed of the second vehicle and turn the
engine switch to IGNITION ON mode, then start the vehicle's
engine.

Once the vehicle’s engine has started, remove the jumper cables in
the exact reverse order from which they were connected.

Once the engine starts, have the vehicle inspected at your Toyota
dealer as soon as possible.

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8-2. Steps to take in an emergency

■

Starting the engine when the battery is discharged 
The engine cannot be started by push-starting.

■

To prevent battery discharge

●

Turn off the headlights and the audio system while the engine is stopped.
(Vehicles with Stop & Start system: except when the engine is stopped by
the Stop & Start system.)

●

Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.

■

When recharging or replacing the battery

●

Vehicles with a smart key system: In some cases, it may not be possible to
unlock the doors using the smart key system when the battery is dis-
charged. Use the wireless remote control or the mechanical key to lock or
unlock the doors.

●

Vehicles with a smart key system: The engine may not start on the first
attempt after the battery has recharged but will start normally after the sec-
ond attempt. This is not a malfunction.

●

Vehicles with a smart key system: The engine switch mode is memorized by
the vehicle. When the battery is reconnected, the system will return to the
mode it was in before the battery was discharged. Before disconnecting the
battery, turn the engine switch off. 
If you are unsure what mode the engine switch was in before the battery dis-
charged, be especially careful when reconnecting the battery.

●

Vehicle with power back door: The power back door must be initialized.
(

→P. 692)

●

Vehicles with Stop & Start system: After the battery terminals have been dis-
connected then reconnected or the battery has been replaced, the Stop &
Start system may not automatically stop the engine for approximately 5 to
60 minutes.

■

Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)

■

When exchanging the battery (vehicles with Stop & Start system)
Use a genuine battery specifically designed for use with a Stop & Start sys-
tem or equivalent. If an unsupported battery is used, Stop & Start system
functions may be restricted to protect the battery. Also, battery performance
may decrease and the engine may not be able to restart. Contact your Toyota
dealer for details.

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8-2. Steps to take in an emergency

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WARNING

■

Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery:

●

Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the intended terminal.

●

Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.

●

Do not allow the + and - clamps of the jumper cables to come into contact
with each other.

●

Do not smoke, use matches, cigarette lighters or allow open flame near
the battery.

■

Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery:

●

When working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.

●

Do not lean over the battery.

●

In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.

●

Always wash your hands after handling the battery support, terminals, and
other battery-related parts.

●

Do not allow children near the battery.

NOTICE

■

When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans or engine drive belt.