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1-1. Hybrid system
1
Before driving
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Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid battery (traction battery), the
battery does not need to be charged from an outside source. However, if
the vehicle is left parked for a long time the hybrid battery will slowly
discharge. For this reason, be sure to drive the vehicle at least once every
few months for at least 30 minutes or 16 km (10 miles). If the hybrid bat-
tery becomes fully discharged and you are unable to jump-start the vehi-
cle with the 12-volt battery, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
If the shift position is in N, the hybrid battery (traction battery) will not
be charged. Always shift the shift position in P when the vehicle is
stopped. When driving in heavy traffic, operate the vehicle with the shift
position in D or B to avoid discharging the hybrid battery (traction bat-
tery).
Charging the 12-volt battery
P. 6 3 6
After the 12-volt battery has discharged or has been changed or removed
The gasoline engine may not stop even if the vehicle is running on the
hybrid battery (traction battery). If this continues for a few days, contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional.
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5-2. Steps to take in an emergency
When trouble arises
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If the 12-volt battery is discharged
The following procedures may be used to start the hybrid system if the
vehicle’s 12-volt battery is discharged.
You can also call any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
If you have a set of jumper (or booster) cables and a second
vehicle with a 12-volt battery, you can jump start your vehicle
by following the steps below.
Open the hood and fuse
block cover.
Open the exclusive jump
starting terminal cover.
STEP1
STEP2
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5-2. Steps to take in an emergency
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Connect the jumper cables according to the following proce-
dure:
Connect a positive jumper cable clamp to the exclusive jump
starting 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 ter-
minal 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
STEP3
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5-2. Steps to take in an emergency
When trouble arises
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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.
Open and close any of the doors of your vehicle with the
“POWER” switch off.
Maintain the engine speed of the second vehicle and start
the hybrid system of your vehicle by turning the
“POWER” switch to ON mode.
Make sure the “READY” indicator light comes on. If the
indicator light does not come on, contact any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
Once the hybrid system has started, remove the jumper
cables in the exact reverse order from which they were
connected.
To install the engine cover, conduct the removal proce-
dure in reverse. After installing, check that the fixed pins
are inserted securely.
Once the hybrid system starts, have the vehicle inspected at any
th i d L d l i th d l lifi dSTEP4
STEP5
STEP6
STEP7
STEP8
STEP9
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5-2. Steps to take in an emergency
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CAUTION
After recharging the 12-volt battery
Have the 12-volt battery inspected at any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
If the 12-volt battery is deteriorating, continued use may cause the 12-volt
battery to emit a malodorous gas, which may be detrimental to the health of
passengers.
When replacing the 12-volt battery
P. 5 1 3
NOTICE
When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans or belt.
To prevent damaging the vehicle
The exclusive jump starting terminal is to be used when charging the 12-
volt battery from another vehicle in an emergency. It cannot be used to jump
start another vehicle.