2010 Lexus GS350 check engine light

512
4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Light bulbs
You may replace the following bulbs yourself. For more information about
replacing other light bulbs, contact your Lexus dealer.
■Prepare a replacement light bulb
Check the wattage of the light bulb being replaced. (P. 600)
■Remove the engine compartment cover if necessary
P. 4 5 0
■Front bulb locations
■Rear bulb locations
Parking light
Headlight high beam and 
daytime running light
Rear turn signal light Back-up light

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.

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

595
6-1. Specifications
6
Vehicle specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Electrical system
Differential
Rear differential: “Toyota Genuine Differential Gear Oil” is filled in your
Lexus vehicle at factory fill. Use Lexus approved “Toyota Genuine Differen-
tial Gear Oil” or an equivalent of matching quality to satisfy the above spec-
ification. Please contact your Lexus dealer for further details.
12 volt battery
Open voltage at
68F (20C):12.6  12.8V Fully charged
12.2  12.4V Half charged
11.8  12.0V Discharged
(Voltage is checked 20 minutes after the
engine and all lights are turned off.)
Charging rates5A max.
GS460/
GS350 (2WD)GS350 (4WD)
FrontRear
Oil capacity1.42 qt.
(1.35 L, 1.19 Imp.qt.)0.73 qt.
(0.70 L, 0.61 Imp.qt.)1.42 qt.
(1.35 L, 1.19 Imp.qt.)
Oil type and
viscosity
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent
Hypoid gear oil API
GL-5
Above 0°F (-18°C):
SAE 90
Below 0°F (-18°C):
SAE 80W or SAE
80W-90
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent

633
Alphabetical index
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Back-up lights
Wattage ................................................ 600
Battery
12 volt battery ...................................... 459
Checking ............................................... 459
If the 12 volt battery is 
discharged ........................................ 574
Preparing and checking 
before winter ...................................... 219
Bluetooth
® audio ................................. 308
Bluetooth
® phone ............................... 332
Brake
Fluid .......................................................... 457
Parking brake ........................................ 145
Brake assist ............................................. 200
Care
Exterior ................................................... 430
Interior..................................................... 433
Seat belts ............................................... 434
Cargo capacity ....................................... 214
Cargo hooks .......................................... 408
CD player/changer .............................269
Chains....................................................... 220
Child-protectors ......................................44
Child restraint system
Definition................................................... 110
Installation.................................................. 114
Installing CRS with lower 
anchors ...................................................115
Installing CRS with seatbelts ........... 117
Installing CRS with top straps ......... 121Child safety
Airbag precautions ............................100
Battery precautions ............. 460, 577
Child restraint system ......................... 110
Child-protectors ................................... 44
How your child should wear 
the seatbelt............................................66
Installing child restraints..................... 114
Moon roof precautions....................... 81
Power window lock switch .............. 75
Power window precautions ............ 75
Removed electronic key battery 
precautions....................................... 483
Seat belt comfort guide ..................... 64
Seat belt precautions .......................... 67
Seat heater precautions.................. 401
Trunk precautions................................ 50
Cigarette lighter................................... 398
Cleaning
Exterior................................................... 430
Interior .....................................................433
Seat belts ................................................434
Clock .........................................................395
Coin holder .............................................390
Compass ....................................................417
Condenser .............................................. 457
Console box .......................................... 388
Cooling system
Engine overheating.......................... 578
Cruise control
Cruise control........................................167
Dynamic radar cruise control......... 171
Cup holders ............................................. 391
Curtain shield airbags............................ 93
Customizable features ........................ 618
B
C

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
F
G
H

640
Alphabetical index
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Warning messages
Anti-lock brake system...................535
Brake assist ...........................................535
Charging system ............................... 534
Dynamic radar 
cruise control ...................................546
Engine oil level ....................................549
Engine oil maintenance ................. 550
Engine oil pressure ........................... 543
Headlight ............................................... 544
Hood........................................................548
Intuitive parking 
assist.............................545, 550, 552
Moon roof .............................................549
Open door ...........................................548
Parking brake ......................................549
Pre-collision system ............ 545, 550
Rear lights system.............................. 544
Smart access system with 
push-button start ............................553
Steering lock ...............535, 544, 555
Trunk ........................................................549
VGRS...................................................... 547
Washer fluid .........................................549Washer
Checking................................................462
Preparing and checking 
before winter...................................... 219
Switch .......................................................... 161
Washing and waxing........................... 430
Weight
Cargo capacity .................................... 214
Load limits............................................... 218
Weight .................................................... 586
Wheels .......................................................477
Window glasses ...................................... 43
Window lock switch ............................... 43
Windows
Power windows ..................................... 75
Rear window defogger .................. 255
Washer....................................................... 161
Windshield wipers
Position ......................................................221
Windshield wipers................................ 161
Windshield wiper de-icer ................. 256
Winter driving tips..................................219
Wireless remote control key
Locking/Unlocking................................41
Replacing the battery ...................... 482
WMA disc ............................................... 276