2016 Lexus GS350 check engine light

437
GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Light bulbs
Check the wattage of the light bulb to be replaced. (
P. 5 5 4 )
 P. 3 9 9
Front turn signal light (vehicles with single-beam headlights)
You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems diffi-
cult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
Preparing for light bulb replacement
Removing the engine compartment covers
Bulb locations
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4567-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
■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” indica tor light, “AIR BAG OFF” indicator light,
front passenger’s seat belt buckle switch, seat belt pretensioner assemblies, airbags,
interconnecting wiring and power sources. ( P. 4 3 )
■Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the wa rning 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 severa l trips, contact your Lexus dealer as soon as
possible.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficie nt or the voltage temporarily drops, the
electric power steering system warning light may come on and the warning buzzer may
sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Initializing the tire
pressure warning system will not turn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caused by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat
tire has been replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
 P. 4 1 8
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mo de, have it checked by your Lexus dealer.

4797-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
7
When trouble arises
Indicates that engine oil level is low This message may appear if the vehicle is stopped on a
slope. Move the vehicle to a level surface and check to
see if the message disappears.
A buzzer also sounds.
 Check the level of engine oil, and add if necessary.
Indicates a malfunction in:
• The Automatic High Beam system (if equipped);
• The AFS (Adaptive Front-lighting System) (if
equipped); or
• The LED headlight system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(GS F for Canada only)
Indicates that the brake pads are worn out
A buzzer also sounds
 Have the vehicle inspected by your Lexus dealer.
Wa r n i n g m e s s a g eDetails/Actions

5007-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
Firmly tighten each wheel nut two or
three times in the order shown in the
illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Stow the flat tire, tire jack and all tools.
■The spare tire
●GS350/GS200t: The spare tire is identified by the label “TEMPORARY USE ONLY”
on the tire sidewall.
●Use the spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflation pressure of the spare tire. (P. 5 5 0 )
■When using the spare tire
As the spare tire is not equipped with a tire pressure warning valve and transmitter, low
inflation pressure of the spare tire will not be indicated by the tire pressure warning sys-
tem. Also, if you replace the spare tire after the tire pressure warning light comes on, the
light remains on.
■When the spare tire is equipped
The vehicle may become lower when driving with the spare tire compared to when driv-
ing with standard tires.
■If you have a flat rear tire on a road covered with snow or ice (vehicles with front and
rear tires of the same size)
Install the compact spare tire on one of the front wheels of the vehicle. Perform the fol-
lowing steps and fit tire chains to the rear tires:
Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the vehicle.
Fit tire chains to the rear tires.
4
WA R N I N G
■When using the spare tire
●Remember that the spare tire provided is specifically designed for use with your vehi-
cle. Do not use your spare tire on another vehicle.
●Do not use more than one spare tire simultaneously.
●Replace the spare tire with a stan dard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
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548
GS350_200t_GS F_OM_OM30E86U_(U)8-1. Specifications
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact your Lexus dealer.
Electrical system
Battery
Open voltage at 68 F (20 C):12.3 V or higher
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)
Charging rates5 A
Automatic transmission
Fluid capacity*
GS350 (2WD)10.0 qt. (9.5 L, 8.4 Imp.qt.)
GS350 (AWD)10.6 qt. (10.0 L, 8.8 Imp.qt.)
GS200t9. 2 q t . ( 8 .7 L , 7.7 I m p.q t . )
GS F11.8 qt. (11.2 L, 9.9 Imp.qt.)
Fluid typeTo y o t a G e n u i n e AT F W S
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration
in shift quality, locking up of your transm ission accompanied by vibration, and ulti-
mately damage the transmission of your vehicle.
Front differential (AWD models)
Oil capacity0.74 qt. (0.70 L, 0.62 Imp.qt.)
Oil type and viscosityToyota Genuine Differential gear oil GL-5 or equivalent
Above 0 F (-18 C): SAE90
Below 0 F (-18 C): SAE80W or SAE80W-90

602What to do if... (Troubleshooting)
GS350_200t_GS F_OM_OM30E86U_(U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 4 5 4 )
●The parking brake indicator is on
Is the parking brake released? ( P. 2 1 0 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 4 5 2 , 4 5 9 )
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 74 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. ( P. 4 5 9 )
●When a warning light turns on or a warning message is displayed, refer to
P. 452, 459. A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

608Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Eco drive mode ..................................... 293
Eco Driving Indicator............................. 85
Eco driving meter .................................... 92
EDR (Event data recorder) ...................10
Electric Power Steering (EPS) ....... 309Function ................................................. 309
Warning light .......................................453
Warning message ............................ 459
Electronic key ..........................................132 Battery-saving function .................... 152
If the electronic key does not operate properly............................ 520
Replacing the battery ....................... 429
Emergency, in case of If a warning buzzer sounds...........452
If a warning light turns on...............452
If a warning message is displayed ....................................... 459
If the electronic key does not operate properly ....... 520
If the engine will not start................. 515
If the parking brake cannot be released......................... 518
If the shift lever cannot be shifted from P ............. 517
If the vehicle battery is discharged .........................................523
If you have a flat tire ............... 491, 502
If you think something is wrong.............................................. 450
If your vehicle becomes stuck .....534
If your vehicle has to be stopped in an emergency .............................443
If your vehicle needs to be towed .......................................444
If your vehicle overheats ............... 528 Emergency flashers .............................442
Emergency tire puncture repair
kit ............................................................. 502
Engine Accessory mode ................................ 198
Compartment ..................................... 396
Engine switch ........................................ 197
Hood........................................................ 393
How to start the engine.................... 197
Identification number .......................540
Ignition switch (engine switch.................................... 197
Overheating.........................................528
Engine compartment cover............. 399
Engine coolant ...................................... 406 Capacity ................................................. 547
Checking ...............................................406
Preparing and checking before winter ......................................316
Engine coolant temperature gauge ................................................ 86, 94
Engine immobilizer system .................. 72
Engine oil ................................................... 401 Capacity ................................................. 542
Checking .................................................401
Oil level warning message ........... 459
Oil pressure warning message........................... 459
Preparing and checking before winter ......................................316
E

619Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Tachometer ....................................... 87, 94Variable red zone................................. 97
Tail lights.....................................................215 Light switch ............................................ 215
Replacing light bulbs ........................439
Welcome light illumination control ................................................... 138
Talk switch
*
Telephone switches*
Theft deterrent system Alarm........................................................... 74
Engine immobilizer system .............. 72
Tire inflation pressure .........................550 Maintenance data ............................. 550
Tire inflation pressure display function ................................................. 414
Warning light .......................................454
Warning message ............................ 459
Tire information .....................................558 Glossary ................................................ 563
Size ........................................................... 560
Tire identification number............. 560
Uniform Tire Quality Grading...............................................562
Tire pressure warning system ...........414 Function ................................................... 414
Initializing ................................................. 415
Installing tire pressure warning valves and transmitters ................. 414
Registering ID codes ........................ 416
Warning light .......................................454
Warning message ............................ 459 Tires ............................................................. 413
Chains ....................................................... 317
Checking ................................................. 413
Emergency tire puncture repair kit ..............................................502
If you have a flat tire ............... 491, 502
Inflation pressure............................... 550
Information........................................... 558
Replacing .................................................491
Rotating tires .......................................... 414
Size .......................................................... 550
Snow tires .............................................. 320
Spare tire..................................................491
Tire inflation pressure display function.................................................. 414
Tire pressure warning system ....... 414
Warning light ....................................... 454
Warning message............................. 459
Tools ...........................................................492
Top tether strap ....................................... 68
Torque Vectoring Differential (TVD) ..................................................... 306
Total load capacity................................. 194
Towing Dinghy towing .......................................196
Emergency towing ........................... 444
Towing eyelet ...................................... 446
Trailer towing.........................................195
TRAC (Traction Control) Function ................................................. 308
TRAC OFF switch ............................. 310
T
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.