2015 Lexus GS350 ECU

4657-2. Steps to take in an emergency
GS350_OM_OM30E15U_(U)
7
When trouble arises
Take out the towing eyelet (P. 505)
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 or hard metal bar.
Securely attach a cable or chain to the towing eyelet.
Take care not to damage the vehicle body.
Enter the vehicle being towed and start the engine.
If the engine does not start, turn the engine switch to IGNITION ON mode.
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: P. 5 1 9
Installing towing eyelet
1
2
3
4
5
6
7

4667-2. Steps to take in an emergency
GS350_OM_OM30E15U_(U)
■While towing
If the engine is not running, the power assist for the brakes and steering will not func-
tion, making steering and braking more difficult.
■Wheel nut wrench
Wheel nut wrench is installed in trunk. ( P. 505)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■While towing
●When towing using cables or chains, avoid sudden starts, etc. which place exces-
sive stress on the towing eyelet, cables or chains. The towing eyelet, cables or
chains may become damaged, broken debris may hit people and cause serious
damage.
●Do not turn the engine switch off.
There is a possibility that the steering wheel is locked and cannot be operated.
■Installing towing eyelet to the vehicle
Make sure that towing eyel et is installed securely.
If not securely installed, towing eyelet may come loose during towing.
2WD models:
Be sure to transport the vehicle with all four
wheels raised off the ground. If the vehicle is
towed with the tires contacting the ground,
the drivetrain and related parts may be dam-
aged or an accident may occur due to a
change in direction of the vehicle.
AW D m o d e l s :
Be sure to transport the vehicle with all four
wheels raised off the ground. If the vehicle is
towed with the tires contacting the ground,
the drivetrain or related parts may be dam-
aged, the vehicle may fly off the truck.

4757-2. Steps to take in an emergency
GS350_OM_OM30E15U_(U)
7
When trouble arises
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors,
side impact sensors (front door), side impact sensors (front), side impact sensors
(rear), driver’s seat position sensor, driver’s seat belt buckle switch, front passenger
occupant classification system, “AIR BAG ON” indicator light, “AIR BAG OFF” indi-
cator light, front passenger’s seat belt buckle switch, seat belt pretensioner assem-
blies, airbags, interconnectin g wiring and power sources. ( P. 38)
■Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passen ger seat, the front passenger detection sen-
sor may cause the warning light to flash and the warning buzzer to sound even if a
passenger is not sitting in the seat.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the warn-
ing buzzer may sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light.

5007-2. Steps to take in an emergency
GS350_OM_OM30E15U_(U)
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Once
•When the doors were unlocked
with the mechan-
ical key and then
the engine switch
was pressed, the
electronic key
could not be
detected in the
vehicle.
• The electronic key could not be
detected in the
vehicle even after
the engine switch
was pressed two
consecutive
times.
To u c h t h e
electronic
key to the
engine
switch while
depressing
the brake
pedal.
Once
An attempt was
made to start the
engine with the shift
lever in an incorrect
position.Shift the
shift lever to
P and start
the engine.
(Flashes)
(Flashes)

5087-2. Steps to take in an emergency
GS350_OM_OM30E15U_(U)Remove the center luggage mat. (
P. 340)
Loosen the center fastener that
secures the spare tire.
Taking out the spare tire
1
2
CAUTION
■When storing the spare tire
Be careful not to catch fingers or other body parts between the spare tire and the
body of the vehicle.

5167-2. Steps to take in an emergency
GS350_OM_OM30E15U_(U)
CAUTION
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire
is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to
observe this precaution may lead to an accident causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their stor-
age location to reduce the possibility of pe rsonal injury during a collision or sudden
braking.
NOTICE
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving perfor-
mance.
■When replacing the tires
When removing or fitting the wheels, tire s or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter may be damaged if not handled correctly.

560
GS350_OM_OM30E15U_(U)
8-1. Specifications
*:Table 1  Occupant loading and distribution for vehicle normal load for various
designated seating capacities
Tr e a dThat portion of a tire that comes into contact with the
road
Tr e a d r i bA tread section running circumferentially around a
tire
Tr e a d s e p a r a t i o nPulling away of the tread from the tire carcass
Treadwear indicators
(TWI)The projections within the principal grooves
designed to give a visual indication of the degrees of
wear of the tread
Wheel-holding fixtureThe fixture used to hold the wheel and tire assembly
securely during testing
Tire related termMeaning
Designated seating
capacity, Number of occupantsVehicle normal load,
Number of occupantsOccupant distribution in a normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 155
2 in front, 1 in second seat, 1 in third seat, 1 in fourth seat
16 through 207
2 in front, 2 in second seat, 2 in third seat, 1 in fourth seat

564
GS350_OM_OM30E15U_(U)
8-2. Customization
Smart
access
system with
push-button
start
( P. 1 0 7 )
and
wireless
remote
control
(  P. 1 2 0 )
Operation signal
(Buzzers)5
Off
O—O
1 to 7
Operation signal
(Emergency flashers)OnOffO—O
Ti m e e l a p s e d b e f o r e a u t o -
matic door lock function is
activated if a door is not
opened after being
unlocked
60
seconds
Off
O—O
30
seconds
120
seconds
Open door reminder
buzzer (When locking the
vehicle)
OnOff——O
Smart
access
system with
push-button
start
(  P. 1 0 7 )Smart access system with
push-button startOnOffO—O
Select doors to unlockDriver’s
doorAll the doorsO—O
Number of consecutive
door lock operations2 timesAs many as desired——O
ItemFunctionDefaultsettingCustom-
ized setting123