2013 Lexus GS450h stop start

774
GS450h_U (OM30D01U)
7-2. Steps to take in an emergency
If your vehicle overheats
●The needle of the engine coolant temperature gauge enters the red
zone:
The engine may be overheating.
●“Hybrid System Overheat” is shown on the multi-information display:
The power control unit may be overheating.
■If the needle of the engine coolant temperature gauge enters the red
zone
Stop the vehicle in a safe place an d turn off the air conditioning sys-
tem.
Check to see if steam is coming out from the engine area.
If you see steam:
Stop the hybrid system. Carefull y lift the hood after the steam sub-
sides and then restart the hybrid system.
If you do not see steam:
Leave the hybrid system operating and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating:
Wait until the engine coolant temperature ga uge begins to fall and
then stop the hybrid system.
If the fans are not operating:
Stop the hybrid system immediately and call your Lexus dealer.
The following may indicate that your vehicle is overheating:
Correction procedures
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778
GS450h_U (OM30D01U)
7-2. Steps to take in an emergency
If the vehicle becomes stuck
Stop the hybrid system. Set the parking brake and shift the shift lever to
P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material under the rear wheels to
help provide traction.
Restart the hybrid system.
Shift the shift lever to D or R and release the parking brake. Then, while
exercising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Press to turn off TRAC.
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GS450h_U (OM30D01U)
8178-2. Customization
8
Vehicle specifications
■Vehicle customization
●When the “Auto Lock by Speed” and “Auto Lock by Shift from P” are both on, the
door lock operates as follows.
• When shifting the shift lever to any position other than P, all the doors will be
locked.
• If the vehicle is started with all the door s locked, the “Auto Lock by Speed” would
not operate.
• If the vehicle is started with any door unlocked, the “Auto Lock by Speed” will operate.
●When the smart access system with push-b utton start is off, the “Select Doors to
Unlock” cannot be customized.
●When the doors remain closed after un locking the doors and the “Auto Relock
Timer” activates, the signals will be generated in accordance with the “Lock/
Unlock Feedback-Tone” and the “Lock/Unlock Feedback-Lights” settings.
■When customizing using the Remote Touch
Stop the vehicle in a safe place, apply the parking brake, and shift the shift lever to P.
Also, to prevent 12-volt battery discharge, leave the hybrid system operating while
customizing the features.
CAUTION
■During customization
As the hybrid system needs to be operating during customization, ensure that the
vehicle is parked in a place with adequate ventilation. In a closed area such as a
garage, exhaust gases including harmful carbon monoxide (CO) may collect and
enter the vehicle. This may lead to death or a serious health hazard.
NOTICE
■During customization
To prevent 12-volt battery discharge, ensu re that the hybrid system is operating
while customizing features.

836What to do if... (Troubleshooting)
GS450h_U (OM30D01U)
●Did you press the power switch while firmly depressing the
brake pedal? ( P. 1 8 9 )
●Is the shift lever in P? ( P. 1 9 2 )
●Is the electronic key anywhere detectable inside the vehicle?
( P. 1 2 4 )
●Is the steering wheel unlocked? ( P. 193)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary
way. ( P. 76 8 )
●Is the 12-volt battery discharged? ( P. 7 7 0 )
●Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake
pedal with the power switch in ON mode ( P. 764)
●It is locked automatically to prevent theft of the vehicle.
( P. 1 9 2 )
If you think something is wrong
The hybrid system does not start
The shift lever cannot be shifted from P even if you depress the
brake pedal
The steering wheel cannot be turn ed after the hybrid system is
stopped

838What to do if... (Troubleshooting)
GS450h_U (OM30D01U)

●Did anyone inside the vehicle open a door during setting the
alarm?
The sensor detects it and the alarm sounds. ( P. 8 1 )
To stop the alarm, turn the power switch to ON mode or start the
hybrid system.
●Is the message displayed on the multi-information display?
Check the message on the multi-information display.
( P. 728)
●When a warning light turns on or a warning message is dis-
played, refer to P. 711, 721.
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

844Alphabetical index
GS450h_U (OM30D01U)
Driver’s seat position memory ......... 150
Driving......................................................... 172Break-in tips ...........................................173
Correct driving posture ....................30
Driving mode select switch ......... 286
Hybrid vehicle driving tips...............317
Procedures ............................................. 172
Winter drive tips .................................. 319
DVD player................................... 433, 441
Dynamic radar cruise control ......... 236 Function ..................................................236
Warning message ................. 723, 734
Eco drive mode ..................................... 286
EDR (Event data recorder) .................... 11
Electric motor (traction motor) ......... 70
Electric Power Steering (EPS) ....... 289 Function ................................................. 289
Warning light ......................................... 712
Warning message ............................. 726
Electronic key ........................................... 118 Battery-saving function ..................... 127
If the electronic key does not operate properly............................. 767
Replacing the battery ...................... 668 Emergency, in case of
If the 12-volt battery is discharged......................................... 770
If the electronic key does not operate properly ........ 767
If the hybrid system will not start ....................................... 762
If the parking brake cannot be released ....................... 765
If the shift lever cannot be shifted from P ............ 764
If the warning buzzer sounds ..........711
If the warning light turns on ..............711
If the warning message is displayed .......................................... 721
If you have a flat tire .......................... 749
If you think something is wrong ................................................710
If your vehicle becomes stuck...................................................... 778
If your vehicle has to be stopped in an emergency............................. 703
If your vehicle needs to be towed ....................................... 704
If your vehicle overheats .................774
Emergency flashers .............................702
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