2007 Lexus IS250 low oil pressure

264
4-3. Do-it-yourself maintenance
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions.
■When working on the engine compartment:
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
ItemsParts and tools
Engine oil level (P. 2 7 2 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (P. 3 0 4 )• Fuse with same amperage rating as
original
Tire inflation pressure (P. 2 9 3 )• Tire pressure gauge
• Compressed air source
Headlight aim (P. 3 1 8 )• Phillips-head screwdriver
Radiator and condenser (P. 2 7 8 )
Wa s h e r f l u i d (P. 2 8 2 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

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5-2. Steps to take in an emergency
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 accident. 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)
Indicates an abnormal engine oil pressure.
The warning light may turn on if the engine oil pres-
sure is too low.
If a warning is shown on the multi-information display, stay calm and per-
form the following actions:
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.
Multi-information display
If any of the warning light turns on again after performing the following
actions, contact your Lexus dealer.

403
6-1. Specifications
6
Vehicle specifications
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

411
6
Vehicle specifications
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Po w e r w i n d o w
• After reconnecting or changing the
battery
• After changing a fuse
P. 4 5
Engine oil maintenance
dataAfter changing engine oilP. 2 7 2
Tire inflation pressure
warning system
• When the standard tire pressure
changes by replacing tires or wheels
• When tires are rotated
• When tire pressure sensors are
replaced
• When driving with the tires inflated to
a higher than standard tire pressure
P. 2 8 4
The following item must be initialized for normal system operation in cases
such as after the battery is reconnected, or maintenance is performed on
the vehicle.

423
Alphabetical index
Total load capacity................................. 160
Towing
Dinghy towing.............................166, 167
Emergency towing ........................... 328
Trailer towing.........................................165
TRAC (Traction control) .................... 148
Traction control (TRAC) .................... 148
Transmission shift switches..................103
Trip meter..................................................109
Trunk
Extending a space ............................ 235
Opener.......................................................23
Trunk light
Trunk light ................................................. 24
Wattage ................................................. 394
Turn signal lights
Replacing light bulbs ......................... 319
Switch ........................................................ 107
Wattage ................................................. 394
Vanity lights
Vanity lights .......................................... 220
Wattage ................................................. 394
Vanity mirrors........................................... 220
VDIM (Vehicle dynamics
integrated management)................. 148
Vehicle dynamics integrated
management (VDIM) ....................... 148
Vehicle identification number ..........381
Vehicle stability control (VSC) ........ 148
Ventilators............................................... 230
VSC (Vehicle stability control) ........ 148Warning buzzers
Brake system........................................339
Open door ............................................ 341
Seat belt reminder ............................ 340
Warning lights
Anti-lock brake system (ABS) ... 340
Brake assist system .......................... 340
Brake system........................................339
Charging system............................... 340
Electric power steering
warning light .................................... 340
Electronic engine control
system ................................................. 340
Low fuel level ........................................ 341
Low tire pressure warning
light ......................................................... 341
Master warning light.......................... 341
Open door ............................................. 341
Pre-collision system......................... 340
Pretensioners ...................................... 340
Seat belt reminder light.................... 341
SRS airbags.......................................... 340
Warning messages
AWD system .......................................345
Dynamic radar
cruise control....................... 345, 349
Engine oil level ....................................349
Engine oil maintenance ..................349
Engine oil pressure ...........................344
Hill-start assist control .................... 348
Hood ........................................................349
Lexus parking assist
sensor ...................................... 345, 349
Moon roof .............................................349
Open door ............................................349
Parking brake ......................................349
Pre-collision system............. 345, 349
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