oil pressure Lexus GS450h 2008 Using other driving systems / LEXUS 2008 GS450H OWNER'S MANUAL (OM30A96U)

415
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U
December 27, 2007 1:38 pm
ItemsPa r t s a n d t o o l s
Engine oil level (P. 422)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses ( P. 4 5 6 )• Fuse with same amperage rating as
original
Headlight aim ( P. 4 7 1 )• Phillips-head screwdriver
Radiator and condenser (P. 4 2 8 )
Tire inflation pressure (P. 4 4 5 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 4 3 4 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

500
5-2. Steps to take in an emergency
GS_HV_U
December 12, 2007 3:50 pm
If a warning message is displayed
Stop the vehicle immediately.A buzzer sounds and a warning message is shown on the multi-informa-
tion display. The following warnings indicate the possibility of damage to
the vehicle that may lead to an acci dent. Immediately stop the vehicle in a
safe place and contact your Lexus dealer.
Wa r n i n g m e s s a g eDetails
(Flashing)
Abnormal engine oil pressure.
The warning light may turn on if the engine oil pres-
sure is too low.
Malfunction in the hybrid system.
If a warning is shown on the multi-information display, stay calm and per-
form the following actions:
Multi-information display
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
multi-information display.
If any of the warning li ght turns on again after pe rforming the following
actions, contact your Lexus dealer.

5
When trouble arises
507
5-2. Steps to take in an emergency
GS_HV_U
December 12, 2007 3:50 pm
Wa r n i n g m e s s a g eDetailsCorrection procedure
The engine oil level is low.Check the engine oil level,
and add if necessary.

Low tire inflation pres-
sure.Check the tire inflation
pressure, and adjust to the
appropriate level.
(U.S.A. only)
The engine oil should be
changed.
Check and change the
engine oil.
Comes on approximately
5000 miles (8000 km)
after the engine oil is
changed (and the oil
maintenance data has
been reset).

575
6
Vehicle specifications
GS_HV_U
December 12, 2007 3:50 pm
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Intuitive parking assist
• After reconnecting or changing the battery
• After changing a fuse
P. 5 1 2
Engine oil maintenance
data• After changing engine oilP. 4 2 5
Tire pressure warning
system
• When rotating the tires on vehicles differing with front and rear tire infla-
tion pressures.
• When changing the tire inflation pressure by changing traveling speed
or load weight, etc.
• When changing the tire size.
P. 4 3 7
After reconnecting or performing main tenance on the 12 volt battery, the
hybrid system may not start. ( P. 431) Also, the following items must be
initialized for normal system operation.

591
Alphabetical index
GS_HV_U
December 12, 2007 3:50 pm
TransmissionIf the shift lever cannot be 
shifted from “P” ............................... 529
Mode select switch ............................ 143
“S” mode .................................................. 144
Transmission .......................................... 142
Trip meter..................................................148
Trunk Opener...................................................... 55
Trunk light ................................................ 56
Wattage ................................................. 552
Turn signal lights Replacing light bulbs ........................474
Switch ........................................................ 146
Wattage ................................................. 552
Vanity lights Vanity lights .......................................... 363
Wattage ................................................. 552
Vanity mirrors........................................ 363
Variable gear ratio steering .............. 201
Vehicle dynamics 
integrated managem ent .................. 201
Vehicle identification number ........ 545
Vehicle load limits.................................. 214
Vehicle stability control ..................... 200
Ventilators............................................... 369
Warning buzzers Brake system ......................................... 491
Downshifting.......................................... 145
Open door .......................................... 493
Seat belt reminder ............................ 493 Warning lights
Anti-lock brake system ................... 492
Brake system......................................... 491
Charging system................................. 491
Electric power steering warning light .....................................492
Electronically 
controlled brake system/ 
Vehicle stability control ...............492
Low fuel level .......................................493
Malfunction indicator lamp ...........492
Master warning light.........................494
Open door ............................................493
Pre-collision system..........................492
Seat belt reminder light...................493
SRS airbags...........................................492
Tire pressure warning light ...........493
Warning messages Anti-lock brake system .................. 504
Brake assist .......................................... 504
Dynamic radar cruise control................................... 502
Engine oil level ................................... 507
Engine oil maintenance ................. 507
Engine oil pressure .......................... 500
Headlight................................................. 501
Hill-start assist control .................... 504
Hood ....................................................... 505
Hybrid system........................ 500, 509
Intuitive parking 
assist .............................. 502, 508, 512
Moon roof ............................................ 506
Open door ........................................... 505
Parking brake ..................................... 506
Pre-collision system............ 502, 508
Refueling.................................................... 511
V
W

596
GS_HV_U
December 12, 2007 3:50 pm
GAS STATION INFORMATION
Auxiliary catch lever
P. 4 1 7
Trunk opener
P. 5 5
Fuel filler door
P. 8 3
Hood lock release leverP. 4 1 7Fuel filler door openerP. 8 3Tire inflation pressureP. 5 5 1
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal.)
Fuel typePremium unleaded gasoline onlyP. 85, 546
Cold tire inflation 
pressure
Driving under normal conditions 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Driving at high speeds above 100 mph 
(160 km/h) (in countries where such speeds 
are permitted by law) Add 9 psi (60 kPa, 0.6 kgf/cm
2 or bar) to the
front tires and rear tires. Never exceed the 
maximum cold tire inflation pressure indicated
on the tire sidewall.P. 551
Engine oil capacity
(Drain and refill)qt. (L, Imp.qt.)
With filter 6.6 (6.3, 5.5)
Without filter 6.2 (5.9
, 5.2)
Engine oil type“Toyota Genuine Motor Oil” or equivalent
Oil grade: ILSAC multigrade engine oilP. 547