check engine Lexus GS350 2016 Repair Manual

600What to do if... (Troubleshooting)
GS350_200t_GS F_OM_OM30E86U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne w genuine mechanical keys can be made
by your Lexus dealer. ( P. 1 3 4 )
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( P. 1 3 5 )
●Is the electronic key battery weak or depleted? ( P. 4 2 9 )
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( P. 1 9 8 )
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
( P. 1 5 2 )
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
( P. 1 4 0 )
●The function to prevent the electronic ke y from being left inside the trunk will
operate and you can open the trunk as usual. Take the key out from the trunk.
( P. 1 4 5 )
If you have a problem, check the following before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
The trunk lid is closed with the electronic key left inside

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”.