Lexus GS450h 2013 Using the audio system / LEXUS 2013 GS450H OWNERS MANUAL (OM30D01U)

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GS450h_U (OM30D01U)
7When trouble arises
7-1. Essential information Emergency flashers................... 702
If your vehicle has to be stopped in an emergency .... 703 7-2. Steps to take in an emergency
If your vehicle needs to be towed ................................ 704
If you think something is wrong ................. 710
If a warning light turns on or a warning buzzer sounds ........ 711
If a warning message is displayed .................................. 721
If you have a flat tire.................... 749
If the hybrid system will not start................................. 762
If the shift lever cannot be shifted from P ......................764
If the parking brake cannot be released .................................765
If the electronic key does not operate properly ...................... 767
If the 12-volt battery is discharged ............................. 770
If your vehicle overheats .......... 774
If the vehicle becomes stuck ............................................. 778

702
GS450h_U (OM30D01U)
7-1. Essential information
Emergency flashers
Press the switch.
All the turn signals will flash.
To turn them off, press the switch once
again.
■Emergency flashers
If the emergency flashers are used for a long time while the hybrid system is not
operating (while the “READY” indicator is not illuminated), the 12-volt battery may
discharge.
The emergency flashers are used to warn other drivers when the vehi-
cle has to be stopped in the road to a breakdown, etc.

703
GS450h_U (OM30D01U)
7
When trouble arises
7-1. Essential information
If your vehicle has to be stopped in an emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort required to
slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the hybrid system.
If the shift lever cannot be shifted to N
Keep depressing the brake pedal wi th both feet to reduce vehicle
speed as much as possible.
To stop the hybrid system, press
and hold the power switch for 2
consecutive seconds or more, or
press it briefly 3 times or more in
succession.
Stop the vehicle in a safe place by the road.
Only in an emergency, such as if it becomes impossible to stop the vehi-
cle in the normal way, stop the vehicle using the following procedure:
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4
3
Press and hold for 2 seconds or more
or press briefly 3 times or more
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CAUTION
■If the hybrid system has to be turned off while driving
Power assist for the brakes and steering wheel will be lost, making the brake pedal
harder to depress and the steering wheel heavier to turn. Decelerate as much as
possible before turning off the hybrid system.
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704
GS450h_U (OM30D01U)
7-2. Steps to take in an emergency
If your vehicle needs to be towed
The following may indicate a problem with your transmission. Contact
your Lexus dealer before towing.
●The hybrid system is operating but the vehicle will not move.
●The vehicle makes an abnormal sound.
If a tow truck is not available in an
emergency, your vehicle may be
temporarily towed using a cable or
chain secured to the emergency
towing eyelet. This should only be
attempted on hard surfaced roads
for short distances at under 18 mph
(30 km/h).
A driver must be in the vehicle to
steer and operate the brakes. The
vehicle’s wheels, drive train, axles,
steering and brakes must be in good
condition.
If towing is necessary, we recommend having your vehicle towed by
your Lexus dealer or a commercial towing service, using a lift-type
truck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/provin-
cial and local laws.
Before towing
Emergency towing

7057-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
Take out the towing eyelet (P. 750)
Remove the eyelet cover using a
flathead screwdriver.
To protect the bodywork, place a rag
between the screwdriver and the vehi-
cle body as shown in the illustration.
Insert the towing eyelet into the
hole and tighten partially by hand.
Tighten down the towing eyelet
securely using a wheel nut
wrench.
Installing towing eyelet
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7067-2. Steps to take in an emergency
GS450h_U (OM30D01U)Do not tow with a sling-type truck to
prevent body damage.
Towing with a sl
ing-type truck
Towing with a wheel -lift type truck
From the frontFrom the rear
Use a towing dolly under the rear
wheels. Turn the power switch to ACCES-
SORY mode so that the steering
wheel is unlocked.

7077-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
If your Lexus is transported by a flat
bed truck, it should be tied down at
the locations shown in the illustra-
tion.
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45 .
Do not overly tighten the tie downs
or the vehicle may be damaged.
Using a flat bed truck

7087-2. Steps to take in an emergency
GS450h_U (OM30D01U)
■Before emergency towingRelease the parking brake.
Shift the shift lever to N.
Turn the power switch to ACCESSORY (hyb rid system off) or ON (hybrid system
operating) mode.
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving ma neuvers which place excessive stress on
the emergency towing eyelets and the cables or chains. Always be cautious of the
surroundings and other vehicles while towing.
●If the hybrid system is off, the power as sist for the brakes and steering will not
function, making steering and braking more difficult.
■Installing towing ey elets to the vehicle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing.
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7097-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
NOTICE
■To prevent causing serious damage to the transmission when towing using a
wheel-lift type truck
Never tow this vehicle from the front with the rear wheels on the ground.
■To prevent damage to the vehicle when towing using a wheel-lift type truck
●Do not tow the vehicle from the rear with the power switch off. The steering lock
mechanism is not strong enough to hold the front wheels straight.
●When raising the vehicle from the rear, ensure adequate ground clearance for
towing at the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed from the rear.
■To prevent body damage when to wing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.

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GS450h_U (OM30D01U)
7-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points higher
than normal.
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the hybrid system
●Engine missing, stumbling or running roughly
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost touches the
floor
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Lexus dealer as soon as pos-
sible.
Visible symptoms
Audible symptoms
Operational symptoms