151
2-5. Driving information
2
When driving
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
• Have a service technician inspect the level and specific gravity
of battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
● Tire pressure falls in winter as the outside temperature falls. Add
2.9 to 4.3 psi (20 to 30 kPa, 0.2 to 0.3 kgf/cm2 or bar) to the
standard tire inflation pressure.
266
4-3. Do-it-yourself maintenance
■Recommended viscosity
SAE 5W-30 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 5W-30 is not available, SAE
10W-30 may be used. However, it
should be replaced with SAE 5W-
30 at the next oil change.
■How to read oil container labels
Some oil containers are labeled wi th ILSAC certification marks that
help you to select the proper oil.
Temperature range anticipated before
next oil change.
373
6-1. Specifications
6
Vehicle specifications
Lubrication system
*: 5W-30 is an oil that provides optimal levels of fuel efficiency.
Oil viscosity
●5W oils are for use in areas where the ambient temperature is -3F (-25C) or
above. "10W" oils are for areas where the ambient temperature is -4
F (-20C)
or above. Oils with smaller figures are better for engine starting in cold weather
and fuel efficiency.
● XX-30 indicates oil viscosity. Oils with higher numbers have better sta-
bility at higher temperatures and are good for high-speed driving.
IS250IS350
Oil capacity
(drain and refill)
with filter
2WD models
AWD models
6.6 qt. (6.3 L, 5.5 lmp.qt.)
6.8 qt. (6.4 L, 5.7 lmp.qt.)6.6 qt. (6.3 L, 5.5 lmp.qt.)
without filter
2WD models
AWD models
6.2 qt. (5.9 L, 5.2 lmp.qt.)
6.3 qt. (6.0 L, 5.3 lmp.qt.)6.2 qt. (5.9 L, 5.2 lmp.qt.)
Oil gradeILSAC multi-grade engine oil
Recommended oil
viscosity
Use Lexus approved "Toyota Genuine Motor Oil" or
equivalent to satisfy the above grade and viscosity.
Temperature range anticipated before
next oil change
392
6-1. 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 equipp ed, 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
406
Alphabetical index
DoorsDoor glasses ............................................. 41
Door lock.................................................... 15
Side mirrors ............................................. 39
Driver's seat belt reminder light ...... 331
Driving Correct posture .................................... 55
Procedures .............................................. 82
Driving position memory ...................... 24
Electric power steering (EPS).......... 139
Electronic key If your electronic key battery is discharged ....................................359
Emergency, in case of If the engine will not start ...............356
If the shift lever cannot be shifted from P ................................... 357
If the vehicle has discharged battery .................................................. 362
If the warning buzzer sounds ...... 329
If the warning light turns on .......... 329
If the warning message is
displayed ............................................ 334
If you have a flat tire .........................348
If you lose your keys.........................358
If you think something is wrong ................................................... 325
If your electronic key battery is discharged ....................................359
If your vehicle becomes stuck..... 367
If your vehicle needs to be towed .................................................... 318
If your vehicle overheats ................365
Engine Compartment ....................................... 261 Engine switch ......................................... 89
Hood ....................................................... 258
How to start the engine .................... 89
If the engine will not start ............... 356
Overheating ........................................ 365
Engine compartment cover ............. 263
Engine coolant Capacity .................................................374
Checking............................................... 268
Preparing and checking before winter........................................151
Engine coolant temperature gauge ...................................................... 100
Engine immobilizer system ................. 50
Engine oil Capacity .................................................373
Checking................................................264
Preparing and checking before winter........................................151
Engine oil maintenance data ........... 267
EPS (Electric power steering) ..........139
Event data recorder ............................ 327
First-aid kit storage belt ..................... 230
Floor mat .................................................. 229
Fluid Brake ........................................................270
Washer.................................................... 274
Fog lights Switch .......................................................... 116
Wattage ................................................. 383
Foot well lighting.................................... 201
Front fog lights Switch .......................................................... 116
Wattage ................................................. 383
E
F
408
Alphabetical index
Light bulbsReplacing ................................................ 310
Wattage..................................................383
Lights Door courtesy lights...........................201
Fog light switch ...................................... 116
Headlights switch ..................................113
Interior light switch ............................ 203
Outer foot lights ...................................201
Overhead courtesy light..................201
Personal light switch ........................ 203
Replacing light bulbs......................... 310
Scuff lighting ...........................................201
Shift lever lighting ................................201
Turn signal lever .................................... 98
Vanity lights ............................................ 212
Wattage..................................................383
Limited slip differential (LSD) ........... 139
Load capacity .......................................... 150
LSD (Limited slip differential) ........... 139
Maintenance Do-it-yourself maintenance ......... 255
General maintenance .......................251
Maintenance data.............................. 370
Maintenance requirements .......... 249
Manual transmission............................... 96
Meter Instrument panel light control ........ 101
Meters ...................................................... 100
Mirrors Inside rear view mirror....................... 38
Side mirror heater ...............................170
Side mirrors ............................................. 39
Vanity mirrors........................................ 212
Moon roof ................................................... 44 MP3 disc
........................................................ 187
Multi-information display ......................109
Odometer ................................................ 100
Oil Engine oil................................................264
Opener Fuel filler door ......................................... 47
Hood ....................................................... 258
Trunk............................................................. 19
Outer foot lights Outer foot lights................................... 201
Wattage ................................................. 383
Outside rear view mirrors Adjusting and folding ..........................39
Driving position memory .................. 24
Outside temperature display ............. 110
Overhead console ............................... 207
Overhead courtesy lights Overhead courtesy lights ............... 201
Wattage ................................................. 383
Overheating, Engine ............................. 365
Parking assist sensors...........................133
Parking brake............................................ 99
Parking lights Replacing light bulbs ......................... 310
Switch .......................................................... 113
Wattage ................................................. 383
PCS (Pre-collision system) ................144
Personal lights Switch ...................................................... 203
Micro dust and pollen removal mode ........................................................166
Power outlet .............................................219
Power windows .......................................... 41L
M
O
P