suspension Lexus GS350 2017 User Guide

4486-2. Maintenance
GS350_200t_GS F_OM_OM30F83E_(EE)
■Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs that indicate
service is needed. Some important clues are:
●Engine missing, stumbling or pinging
●Appreciable loss of power
●Strange engine noises
●A fluid leak under the vehicle (However, water dripping from the air conditioning sys-
tem after use is normal.)
●Change in exhaust sound (This may indicate a dangerous carbon monoxide leak. Drive
with the windows open and have the exhaust system checked immediately.)
●Flat-looking tires, excessive tire sque al when cornering, uneven tire wear
●Vehicle pulls to one side when driven straight on a level road
●Strange noises related to suspension movement
●Loss of brake effectiveness, spongy feeling brake pedal, pedal almost touches the floor,
vehicle pulls to one side when braking
●Engine coolant temperature continually higher than normal ( P. 109, 115)
If you notice any of these clues, take your vehicle to any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer as soon as possible. Your vehicle may
need adjustment or repair.
WARNING
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and possible
death or serious injury.
■Handling of the battery
Battery posts, terminals and related accessories contain lead and lead compounds
which are known to cause brain damage. Wash your hands after handling. ( P. 466)

515
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■While towing
●When towing using cables or chains, avoid sudden starts, etc. which place excessive
stress on the towing eyelets, cables or chains. The towing eyelets, cables or chains
may become damaged, broken debris ma y hit people, and cause serious damage.
●Do not turn the engine switch off.
There is a possibility that the steering wheel is locked and cannot be operated.
■Installing towing eyelets to the vehicle
Make sure that towing eyelets are installed securely.
If not securely installed, towing ey elets may come loose during towing.
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type truck
●Do not tow the vehicle from the rear when the engine switch is off. The steering lock
mechanism is not strong enough to hold the front wheels straight.
●When raising the vehicle, ensure adequate ground clearance for towing at the oppo-
site end of the raised vehicle. Without adequate clearance, the vehicle cou ld be dam-
aged while being towed.
■To prevent damage to the vehicle when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■To prevent damage to the vehicle during emergency towing
Do not secure cables or chains to the suspension components.
2WD models:
Be sure to transport the vehicle with all four
wheels raised off the ground. If the vehicle is
towed with the tires contacting the ground, the
drivetrain and related parts may be damaged
or an accident may occur due to a change in
direction of the vehicle.
AWD models:
Be sure to transport the vehicle with all four
wheels raised off the ground. If the vehicle is
towed with the tires contacting the ground, the
drivetrain or related parts may be damaged,
the vehicle may fly off the truck.

5167-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30F83E_(EE)
If you think something is wrong
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points higher than nor-
mal.
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
● Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touches the floor
If you notice any of the following sy mptoms, your vehicle probably needs
adjustment or repair. Contact any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

645
8
8-2. Customization
Vehicle specifications
GS350_200t_GS F_OM_OM30F83E_(EE)
■Lexus parking assist-sensor*1, 2
* 1
:If equipped
* 2
: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN-
UAL”.
* 3
: GS350/GS200t
■Driving mode select switch (vehicles with Adaptive Variable Suspension
system) ( P. 359)
FunctionDefault
settingCustomized setting
Detection distance of the front
center sensor *3FarNearO—O
Detection distance of the rear
center sensorFarNearO—O
Buzzer volume31 to 5O—O
Display setting
(when Lexus parking assist-
sensor is operating)All sensors
displayedDisplay offO—O
123
FunctionDefaultsettingCustomized setting
Power train controlNormalPowerO——Eco
Chassis controlNormalSportO——
Air conditioning operationNormalEcoO——
123

658Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Alphabetical index
A/C ............................................................ 396
Air conditioning filter....................... 489
Changing the rear seat settings.................................................403
Front automatic air
conditioning system ......................396
nanoe™ system ................................. 406
Pollen removal mode ...................... 402
Rear air conditioning system ...... 408
S-FLOW mode.................................. 397
ABS (Anti-lock Brake System) ....... 375
Function .................................................. 375
Warning light ........................................ 519
Warning message............................. 524
Active Sound Control (ASC)........... 261
Adaptive Front-lighting System (AFS) ..................................................... 263
Adaptive Variable Suspension system (AVS) ...................................... 376
AFS (Adaptive Front-lighting System) .................................................. 263
AHS (Adaptive High-beam System) .................................................. 265
Air conditioning filter ..........................489
Air conditioning system ..................... 396 Air conditioning filter....................... 489
Changing the rear seat settings.................................................403
Front automatic air
conditioning system ......................396
nanoe™ system ................................. 406
Pollen removal mode ...................... 402
Rear air conditioning system ...... 408
S-FLOW mode.................................. 397 Airbags ..........................................................51
Airbag manual on-off system........... 61
Airbag operating conditions ...........57
Airbag precautions for
your child .............................................. 53
Airbag warning light ..........................518
Correct driving posture.....................44
Curtain shield airbag operating
conditions ..............................................57
Curtain shield airbag
precautions .......................................... 55
General airbag precautions ........... 53
Locations of airbags ............................. 51
Modification and disposal of
airbags.................................................... 56
Side airbag operating
conditions ..............................................57
Side airbag precautions .................... 53
Side and curtain shield airbags operating conditions ........................57
Side and curtain shield airbags precautions .......................................... 53
SRS airbags ............................................... 51
Airbag manual on-off system ............... 61
Alarm ............................................................ 92 Alarm ...........................................................92
Warning buzzer...................... 518, 524
Anchor brackets .......................................76
Antennas (smart entry & start system) ......................................... 173
A

659
Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Anti-lock Brake System (ABS) ....... 375
Function .................................................. 375
Warning light ........................................ 519
Warning message............................. 524
Approach warning ...................338, 350
Armrest.....................................................430
Armrest door.......................................... 433
ASC (Active Sound Control)........... 261
Ashtrays .................................................... 429
Assist grips .............................................. 434
Audio input *
Audio system *
Automatic headlight leveling system ................................................... 264
Automatic High Beam ....................... 270
Automatic light control system ...... 262
Automatic transmission ..................... 246 If the shift lever cannot be
shifted from P ................................... 253
M mode .................................................. 249
Paddle shift switches ........................ 248
AUX port *
Auxiliary boxes ...................................... 423
AVS (Adaptive Variable Suspension system) .......................... 376 Back-up light
Replacing light bulb ......................... 504
Battery....................................................... 466
If the vehicle has discharged battery.................................................. 597
Preparing and checking before winter.................................... 383
Warning light.........................................518
Blind Spot Monitor (BSM) .............. 363
Blind Spot Monitor function ........ 368
Rear Crossing Traffic Alert function ............................................... 370
Bluetooth ®
*
Brake Fluid .......................................................... 628
Parking brake ...................................... 256
Warning light............................ 518, 520
Warning message ............................ 524
Brake assist ............................................ 375
Brake Hold .............................................. 259
Break-in tips ........................................... 224
Brightness control Instrument panel li ght control ...........111
BSM (Blind Spot Monitor) ............... 363 Blind Spot Monitor function ........ 368
Rear Crossing Traffic Alert function.................................... 370B
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.