2016 Lexus GS450h brake fluid

349
GS450h_OM_OM30E99U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Engine compartment
■12-volt battery
 P. 3 5 8
Engine oil level dipstick
(P. 3 5 1 )
Engine coolant reservoir (P. 3 5 4 )
Engine oil filler cap ( P. 3 5 2 )
Power control unit coolant
reservoir ( P. 3 5 4 ) Brake fluid reservoir
(P. 3 5 6 )
Fuse box ( P. 3 7 9 )
Wa s h e r f l u i d t a n k ( P. 3 5 7 )
Electric cooling fans
Condenser ( P. 3 5 5 )
Radiator ( P. 3 5 5 )1
2
3
4
5
6
7
8
9
10

356
GS450h_OM_OM30E99U_(U)
6-3. Do-it-yourself maintenance
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.
■Adding fluid
Make sure to check the fluid type and prepare the necessary item.
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.
Brake fluid
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel
WA R N I N G
■When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage painted surfaces. If
fluid gets on your hands or in your eyes, fl ush the affected area with clean water imme-
diately. If you still experience discomfort, see a doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear out or
when the fluid level in the accumulator is high.
If the reservoir needs frequent refil ling, there may be a serious problem.

399
GS450h_OM_OM30E99U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks under the vehicle.
(Water dripping from the air co nditioning 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 hybrid system
●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 symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

400
GS450h_OM_OM30E99U_(U)
7-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer) •Low brake fluid
• Malfunction in the electronically controlled brake system
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer. Continuing to drive the vehicle may be dangerous.
(If equipped)
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic hybrid transmission control system
 Have the vehicle inspected by your Lexus dealer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
 Have the vehicle inspected by your Lexus dealer immediately.
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system
 Have the vehicle inspected by your Lexus dealer immediately.

GS450h_OM_OM30E99U_(U)
4738-1. Specifications
8
Vehicle specifications
*: Minimum pedal clearance when depressed with a force of 112.4 lbf (500 N, 51.0 kgf)
while the hybrid system is operating.
When performing the brake pedal inspection, also be sure to check that the brake
system warning light is not illuminated when the hybrid system is operating (If the
brake system warning light is illuminated, refer to P. 400).
Ty p e A
Brakes
Pe d a l c l e a r a n c e*4.5 in. (115 mm) Min.
Pedal free play0.04 — 0.24 in. (1.0 — 6.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3
Steering
Free playLess than 1.2 in. (30 mm)
Tires and wheels
Ti r e s i z e225/50R17 94W, T155/70D17 110M (spare)
Tire inflation pressure
(Recommended cold
tire inflation pressure)
Driving under normal conditions
Front: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Rear: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Spare: 60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Driving at high speeds (above 118 mph [190 km/h]) (in coun-
tries where such speeds are permitted by law) Add 10 psi (70 kPa, 0.7 kgf/cm
2 or bar) to the front tires
and rear tires. Never exceed the maximum cold tire infla-
tion pressure indicated on the tire sidewall.
Wheel size17  7 1 /2J, 17  4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

525Alphabetical index
GS450h_OM_OM30E99U_(U)
Approach warning............................... 248
Armrest ..................................................... 315
Assist grips ............................................... 318
Audio input
*
Audio system*
Automatic headlight leveling system ......................................................199
Automatic light control system......... 197
AUX port
*
Auxiliary boxes ...................................... 309
AVS (Adaptive Variable Suspension system).......................... 267
Back-up lights Replacing light bulbs ....................... 388
Battery (12-volt battery) ....................358 If the 12-volt battery is discharged .........................................453
Preparing and checking before winter .................................................... 274
Warning light ...................................... 400
Battery (traction battery) ..................... 70
Blind Spot Monitor (BSM)................ 258 Blind Spot Monitor function .......... 261
Rear Cross Traffic Alert function ................................................263
Bluetooth
®*
Brake Brake Hold .............................................195
Fluid ..........................................................356
Parking brake ........................................193
Regenerative braking ..........................67
Warning light .......................... 400, 402
Warning message.............................406
Brake assist ..............................................266
Brake Hold................................................ 195
Break-in tips ............................................. 167
Brightness control Instrument panel light control ........ 89
BSM (Blind Spot Monitor) ............... 258 Blind Spot Monitor function........... 261
Rear Cross Traffic Alert function................................................ 263
Care................................................ 332, 336 Aluminum wheels .............................. 333
Exterior ................................................... 332
Interior ..................................................... 336
Seat belts................................................ 337
Cargo capacity ....................................... 177
Cargo hooks ............................................310
Caution label..............................................70
CD player
*
Chains ........................................................275
B
C
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

529Alphabetical index
GS450h_OM_OM30E99U_(U)
Engine switch .......................................... 180Auto power off function................... 182
Changing the power switch modes ..................................................... 181
If your vehicle has to be stopped in an emergency .............................393
Starting the hybrid system ..............180
EPS (Electric Power Steering) ....... 267 Function .................................................. 267
Warning light ........................................ 401
Warning message ............................ 406
EV drive mode........................................ 185
Event data recorder (EDR) ...................10
First-aid kit storage net ......................... 311
Flat tire ...................................................... 437
Floor mats ................................................... 26
Fluid Brake ........................................................ 473
Hybrid transmission.......................... 472
Washer ...................................................357
Footwell light .......................................... 302
Front passenger occupant classification system ............................ 46
Front personal lights............................ 303
Front seats .................................................. 141 Adjustment ............................................... 141
Cleaning .................................................336
Correct driving posture .................... 28
Driving position memory ................ 143
Head restraints ..................................... 148
Power easy access system ............ 143
Seat heaters ......................................... 300
Seat position memory....................... 143
Seat ventilators ................................... 300 Front side marker lights....................... 197
Light switch............................................. 197
Replacing light bulbs ...................... 388
Welcome light illumination control......................................................121
Front turn signal lights .......................... 192 Replacing light bulbs .......... 387, 388
Turn signal lever ................................... 192
Wattage ..................................................477
Fuel............................................................... 210 Capacity .................................................468
Fuel gauge ............................................... 86
Information............................................ 478
Refueling ..................................................210
Type..........................................................468
Warning light ....................................... 402
Warning messages ..........................406
Fuel consumption Average fuel consumption .............. 95
Average fuel consumption after refueling ...................................... 95
Current fuel consumption................ 95
Fuel filler door.......................................... 210 Refueling ..................................................210
When the fuel filler door cannot be opened ........................... 212
Fuses...........................................................379
Garage door opener............................ 319
Gauges........................................................ 86
Glove box ............................................... 306
Glove box light...................................... 306
F
G