2010 Lexus GS350 ignition

522
5-1. Essential information
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Emergency towing
If a tow truck is not available, in an emergency your vehicle may be tem-
porarily 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 low speeds.
A driver must be in the vehicle to steer and operate the brakes. The vehi-
cle’s wheels, drive train, axles, steering and brakes must be in good condi-
tion.
Towing eyelet
■Emergency towing procedure
Release the parking brake.
Put the shift lever in “N”.
The “ENGINE START STOP” switch must be in the ACCESSORY mode
(engine off) or the IGNITION ON mode (engine on).
STEP1
STEP2
STEP3

540
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■If the tire pressure warning light comes on after blinking for 1 minute frequently
If the tire pressure warning light comes on after blinking for 1 minute frequently
when the “ENGINE START STOP” switch is turned to IGNITION ON mode, have
it checked by your Lexus dealer.
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Vehicles with standard tires:
• Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation
pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure
adjustment, it is probable that you have a flat tire. Check the tires. If the tire is
flat, change to the spare tire and have the flat tire repaired by the nearest
Lexus dealer.
• Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
●Vehicles with run-flat tires:
• Decelerate to the lowest appropriate speed as soon as possible. Do not drive
over 55 mph (90 km/h).
• Check and adjust the tire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure
adjustment, it is probable that you have a flat tire. Have the tire replaced by
the nearest Lexus dealer.
• Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

546
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Wa r n i n g m e s s a g eDetails
(Flashing)
(If equipped)
Malfunction in the radar cruise control system.
Stop the vehicle in a safe place. Turn the “ENGINE
START STOP” switch to OFF and then to IGNITION
ON mode again to reset the cruise control system.
Malfunction in the charging system.
Malfunction in the power steering system.
Malfunction in the brake system.
Malfunction in the ABS.

5
When trouble arises
553
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem, check
that the warning message and light turn off.
Interior
buzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
Once(Comes on for 10 seconds)
(Flashing)
The electronic key
is not detected
when attempting
to start the
engine.Confirm the
location of
the elec-
tronic key.
Once3 times
(Flashing)
An open door
other than the
driver’s door is
closed while the
electronic key is
outside the detec-
tion range and the
“ENGINE START
STOP” switch is in
ACCESSORY or
IGNITION ON
mode.
Confirm the
location of
the elec-
tronic key.

5
When trouble arises
575
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
GS350
Positive (+) battery terminal on your vehicle.
Positive (+) battery terminal on the second vehicle.
Negative (-) battery terminal on the second vehicle.
Connect the jumper cable to ground on your vehicle as shown.
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the 12 volt battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch is OFF.
Maintain the engine speed on the second vehicle and turn the
“ENGINE START STOP” switch to the IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Lexus dealer
as soon as possible.
STEP3
STEP4
STEP5
STEP6

594
6-1. Specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Cooling system
Ignition system
CapacityGS46011.7 qt. (11.0 L, 9.7 Imp.qt.)
GS3509.6 qt. (9.1 L, 8.0 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
Spark plug
Make DENSOFK20HBR11
Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.

634
Alphabetical index
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Daytime running light system ........... 158
Defogger
Rear window ........................................ 255
Side mirror ............................................ 255
Dimension ............................................... 586
Dinghy towing ........................................ 225
Display
Multi-information display.................154
Touch screen ....................................... 228
Trip information ................................... 155
Warning message............................. 543
Do-it-yourself maintenance ............. 442
Door courtesy lights ............................382
Door pocket............................................ 392
Doors
Door lock...................................29, 41, 43
Rear door child protector ................ 44
Driver’s seat belt reminder light .....536
Driver’s seat position memory ...........55
Driving
Correct posture ...................................... 91
Procedures ............................................. 126
DVD player/changer......................... 280
Electric power steering ..................... 200
Electronic key
If the electronic key does 
not operate properly ...................... 571
Replacing battery .............................. 482Emergency, in case of
If a warning light turns on .............. 534
If a warning message is 
displayed ............................................ 543
If the electronic key does 
not operate properly ..................... 571
If the engine will not 
start .......................................................568
If the shift lever cannot be 
shifted from “P” ............................... 569
If the 12 volt battery is 
discharged ........................................574
If you have a flat tire ........... 556, 566
If you lose your keys ........................ 570
If you think something is 
wrong .................................................. 530
If your vehicle becomes stuck ......581
If your vehicle has to be stopped 
in an emergency ............................ 583
If your vehicle needs to be 
towed ................................................... 520
If your vehicle overheats................ 578
Engine
ACCESSORY mode....................... 136
Compartment ..................................... 448
Engine (ignition) switch.................... 135
Hood ....................................................... 445
How to start the engine ................... 135
If the engine will not start ...............568
Overheating ........................................ 578
Engine compartment cover ............. 450
Engine coolant temperature 
gauge ....................................................... 147D
E

635
Alphabetical index
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Engine coolant
Capacity................................................. 594
Checking ............................................... 455
Preparing and checking 
before winter ...................................... 219
Engine oil
Capacity.................................................590
Checking ................................................. 451
Preparing and checking 
before winter ...................................... 219
Engine oil maintenance data ........... 453
Engine (ignition) switch ....................... 135
Enhanced vehicle stability 
control ................................................... 200
Event data recorder............................ 532
First-aid kit storage belt..................... 408
Floor mats................................................ 406
Fluid
Brake ....................................................... 457
Washer ................................................... 462
Fog lights
Switch ........................................................160
Wattage ................................................ 600
Foot light .................................................. 382
Front passenger occupant 
classification system ..........................105
Front passenger’s seat belt 
reminder light ......................................537
Front seats
Adjustment .............................................. 53
Driver’s seat position memory ...... 55
Front turn signal lights
Wattage ................................................ 600Fuel
Capacity ................................................ 589
Fuel gauge...............................................147
Gas station information ................. 648
Information ............................................. 601
Refueling.................................................... 82
Fuel door ..................................................... 82
Fuel filler door ........................................... 82
Fuses ..........................................................484
Garage door opener ............................. 411
Gas station information......................648
Gauges .......................................................147
Glove box ................................................ 387
Hands-free system
(for cellular phone) .......................... 332
Head restraints ......................................... 60
Headlight aim ........................................ 509
Headlight cleaner .................................. 166
Headlights
Adaptive front lighting system...... 158
Discharge headlights 
precautions......................................... 518
Replacing light bulbs ......................... 512
Switch.........................................................157
Wattage ................................................. 600
Heaters
Seat heaters ......................................... 400
Side mirror.............................................255
Hill-start assist control ....................... 200
Hood .......................................................... 445
Hooks
Cargo ..................................................... 408
Shopping bag ..................................... 408
Horn ............................................................ 146
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