ECU Lexus GS250 2012 Owner's Manual

GS350/250_EE (OM30C36E)
Pictorial indexSearch by illustration
1For safety and
securityMake sure to read though them
2Instrument clusterHow to read the gauges and meters, the variety of warn-
ing lights and indicators, etc.
3Operation of each
componentOpening and closing the doors and windows,
adjustment before driving, etc.
4DrivingOperations and advices which are necessary for driving
5Interior featuresUsage of the interior features, etc.
6Maintenance and
careCaring for your vehicle and maintenance procedures
7When trouble
arisesWhat to do in case of malfunction or emergency
8Vehicle specifica-
tionsVehicle specification, customizable features, etc.
IndexSearch by symptom
Search alphabetically

TABLE OF CONTENTS2
GS350/250_EE (OM30C36E)
For your information...................... 8
Reading this manual .................... 12
How to search .............................. 13
Pictorial index .............................. 14
1-1. For safe use
Before driving ..................... 34
For safety drive ................... 36
Seat belts ............................. 38
SRS airbags ......................... 44
Airbag manual on-off sys-
tem.....................................56
Safety information for chil-
dren...................................58
Child restraint systems ........ 59
Installing child restraints ..... 68
Exhaust gas precautions ...... 79
1-2. Theft deterrent system
Engine immobilizer system. 80
Double locking system ........ 85
Alarm .................................. 86
2. Instrument cluster
Warning lights and indica-
tors.......................................94
Gauges and meters .............. 98
Multi-information display . 101
Head-up display ................ 1093-1. Key information
Keys .................................. 118
3-2. Opening, closing and locking
the doors and trunk
Smart entry & start system 123
Wireless remote control .... 141
Doors ................................. 146
Trunk ................................. 150
3-3. Adjusting the seats
Front seats ......................... 157
Driving position memory .. 161
Head restraints................... 167
3-4. Adjusting the steering wheel and
mirrors
Steering wheel.................170
Inside rear view mirror ...... 171
Outside rear view mirrors . 174
3-5. Opening, closing the windows
and moon roof
Power windows ................. 178
Moon roof ......................... 181
1For safety and security
2Instrument cluster
3Operation of each compo-
nent

33
1For safety and security
GS350/250_EE (OM30C36E)
1-1. For safe use
Before driving ..................... 34
For safety drive ................... 36
Seat belts ............................. 38
SRS airbags......................... 44
Airbag manual on-off
system ............................... 56
Safety information
for children ....................... 58
Child restraint systems........ 59
Installing child restraints .... 68
Exhaust gas precautions...... 79
1-2. Theft deterrent system
Engine immobilizer system 80
Double locking system ....... 85
Alarm .................................. 86

341-1. For safe use
GS350/250_EE (OM30C36E)
Before driving
Use only floor mats designed specifically for vehicles of the same
model and model year as your vehicle. Fix them securely in place
onto the carpet.
Insert the retaining hooks
(clips) into the floor mat eye-
lets.
Turn the upper knob of each
retaining hook (clip) to secure
the floor mats in place.
*: Always align the marks.
The shape of the retaining hooks (clips) may differ from that shown in the
illustration.
Floor mat
1
*
2

351-1. For safe use
1
For safety and security
GS350/250_EE (OM30C36E)
CAUTION
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering
with the pedals while driving. An unexpectedly high speed may result or it
may become difficult to stop the vehicle, leading to an accident, or leading to
death or a serious injury.
When installing the driver’s floor mat
Do not use floor mats designed for other models or different model year
vehicles, even if they are Lexus Genuine floor mats.
Only use floor mats designed for the driver’s seat.
Always install the floor mat securely using the retaining hooks (clips) pro-
vided.
Do not use two or more floor mats on top of each other.
Do not place the floor mat bottom-side up or upside-down.
Before driving
Check that the floor mat is securely
fixed in the correct place with all the
provided retaining hooks (clips). Be
especially careful to perform this check
after cleaning the floor.
With the engine stopped and the shift
lever in P, fully depress each pedal to
the floor to make sure it does not inter-
fere with the floor mat.

371-1. For safe use
1
For safety and security
GS350/250_EE (OM30C36E)Make sure that you can see backward clearly by adjusting the
inside and outside rear view mirrors properly. (P. 171, 174)
Adjusting the mirrors
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
Do not adjust the position of the driver’s seat while driving.
Doing so could cause the driver to lose control of the vehicle.
Do not place a cushion between the driver or passenger and the seatback.
A cushion may prevent correct posture from being achieved, and reduce
the effectiveness of the seat belt and head restraint.
Do not place anything under the front seats.
Objects placed under the front seats may become jammed in the seat
tracks and stop the seat from locking in place. This may lead to an acci-
dent and the adjustment mechanism may also be damaged.
When driving over long distances, take regular breaks before you start to
feel tired.
Also, if you feel tired or sleepy while driving, do not force yourself to
continue driving and take a break immediately.

391-1. For safe use
1
For safety and security
GS350/250_EE (OM30C36E)Push the seat belt shoulder
anchor down while pressing
the release button.
Push the seat belt shoulder
anchor up.
Move the height adjuster up and
down as needed until you hear a
click.
For children or smaller-than-
average people, slide the seat
belt comfort guide forward so
that the shoulder belt does not sit
close to the person’s neck.
Adjusting the seat belt shoulder anchor height (front seats)
1
2
Seat belt comfort guide (outboard rear seats)

411-1. For safe use
1
For safety and security
GS350/250_EE (OM30C36E)
Emergency locking retractor (ELR)
The retractor will lock the belt during a sudden stop or on impact. It may also
lock if you lean forward too quickly. A slow, easy motion will allow the belt
to extend so that you can move around fully.
Child seat belt usage
The seat belts of your vehicle were principally designed for persons of adult
size.
Use a child restraint system appropriate for the child, until the child
becomes large enough to properly wear the vehicle’s seat belt. (P. 5 9 )
When the child becomes large enough to properly wear the vehicle’s seat
belt, follow the instructions regarding seat belt usage. (P. 3 8 )
Replacing the belt after the pretensioner has been activated
If the vehicle is involved in multiple collisions, the pretensioner will activate
for the first collision, but will not activate for the second or subsequent colli-
sions.
Seat belt regulations
If seat belt regulations exist in the country where you reside, please contact
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional for seat belt replacement or installation.

431-1. For safe use
1
For safety and security
GS350/250_EE (OM30C36E)
CAUTION
People suffering illness
Obtain medical advice and wear the seat belt in the proper way. (P. 3 8 )
When children are in the vehicle
Do not allow children to play with the seat belt. If the seat belt becomes
twisted around a child’s neck, it may lead to choking or other serious inju-
ries that could result in death.
If this occurs and the buckle cannot be unfastened, scissors should be used
to cut the belt.
Seat belt pretensioners
If the pretensioner has activated, the SRS warning light will come on. In
that case, the seat belt cannot be used again and must be replaced at any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional.
Seat belt damage and wear
Do not damage the seat belts by allowing the belt, plate, or buckle to be
jammed in the door.
Inspect the seat belt system periodically. Check for cuts, fraying, and
loose parts. Do not use a damaged seat belt until it is replaced. Damaged
seat belts cannot protect an occupant from death or serious injury.
Ensure that the belt and plate are locked and the belt is not twisted.
If the seat belt does not function correctly, immediately contact any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional.
Replace the seat assembly, including the belts, if your vehicle has been
involved in a serious accident, even if there is no obvious damage.
Do not attempt to install, remove, modify, disassemble or dispose of the
seat belts. Have any necessary repairs carried out by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Inappropriate handling may lead to incorrect operation.

451-1. For safe use
1
For safety and security
GS350/250_EE (OM30C36E)
SRS side and curtain shield airbags
SRS front side airbags
Can help protect the torso of the front seat occupants
SRS rear side airbags
Can help protect the torso of occupants in the rear outer seats
SRS curtain shield airbags
Can help protect primarily the head of occupants in the outer
seats
3
4