transmission oil Lexus GX470 2003 Basic Functions / LEXUS 2003 GX470 OWNER'S MANUAL (OM60A45U)

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
xPage
1Automatic transmission second start
indicator light 309
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged “Park” warning light 49
. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 51
. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 303 . . . . . .
6Driver’s seat belt reminder light 45
. . . . . . . . . . . . . . . .
7Turn signal indicator light 25
. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 44
. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 25
. . . . . . . . . . . .
10“ABS” warning light 48
. . . . . . . . . . . . . . . . . . . . . . . . . .
11Open door warning light 49
. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Headlight indicator light 24
. . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 312
. . . . . . . . . . . . . . . .
15Engine oil replacement reminder light 51
. . . . . . . . . .
16Engine coolant temperature gauge 41
. . . . . . . . . . . . . Page
17Discharge warning light
50
. . . . . . . . . . . . . . . . . . . . . . .
18Low engine oil pressure warning light 50
. . . . . . . . . .
19Malfunction indicator lamp 47
. . . . . . . . . . . . . . . . . . . .
20Slip indicator light 322, 324, 327, 329
. . . . . . . . . . . . .
21Vehicle skid control system off
indicator light 324 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Center differential lock indicator light 309
. . . . . . . .
23“VSC TRAC” warning light 50
. . . . . . . . . . . . . . . . . . . . .
24Downhill assist control system
indicator light 326 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25Rear height control indicator lights 319
. . . . . . . . . . .
26Security indicator light 12, 175
. . . . . . . . . . . . . . . . . . .
27SRS warning light 46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Trip meter reset knob 42
. . . . . . . . . . . . . . . . . . . . . . . . .
29Odometer and trip meter 42
. . . . . . . . . . . . . . . . . . . . . .
30Low fuel level warning light 51
. . . . . . . . . . . . . . . . . . . .
31Fuel gauge 40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DRIVING TIPS
343
CAUTION
Always observe the following precautions to minimize
the risk of serious personal injury or damage to your
vehicle:
Drive carefully when off the road. Do not take
unnecessary risks by driving in dangerous places.
 Do not grip the steering wheel spokes when driving
offroad. A bad bump could jerk the wheel and injure
your hands. Keep both hands and especially your
thumbs on the outside of the rim.
 Always check your brakes for effectiveness
immediately after driving in sand, mud, water or
snow.
 After driving through tall grass, mud, rock, sand,
rivers, etc., check that there is no grass, bush, paper,
rags, stone, sand, etc. adhering or trapped on the
underbody. Clear off any such matter from the
underbody. If the vehicle is used with these materials
trapped or adhering to the underbody, a breakdown
or fire could occur.
 In a rollover crash, an unbelted person is
significantly more likely to die than a person wearing
a seat belt. Therefore, the driver and all passengers
should fasten their seat belts whenever the vehicle is
moving.
 When driving offroad or in rugged terrain, do not
drive at excessive speeds, jump, make sharp turns,
strike objects, etc. This may cause loss of control or
vehicle rollover causing death or serious injury. You
are also risking expensive damage to your vehicle’s
suspension and chassis.
NOTICE
 If driving through water, such as when crossing
shallow streams, first check the depth of the water
and the bottom of the river bed for firmness. Drive
slowly and avoid deep water.
 Take all necessary safety measures to ensure that
water damage to the engine or other components
does not occur.
Water entering the engine air intake will cause severe
engine damage.
Water can wash the grease from wheel bearings,
causing rusting and premature failure, and may also
enter the differentials, transmission and transfer
case, reducing the gear oil’s lubricating qualities.
 Sand and mud that has accumulated in brake drums
and around brake discs may affect braking ef ficiency
and may damage brake system components.

INTRODUCTION
407
NOTICE
Remember that battery and ignition cables carry high
currents or voltages. Be careful of accidentally
causing a short circuit.
 Before closing the engine hood, check to see that you
have not forgotten any tools, rags, etc.
 Do not drive with the air cleaner removed, or
excessive engine wear could result. Also backfiring
could cause a fire in the engine compartment.
 Do not overfill automatic transmission fluid and
power steering fluid, or the transmission and power
steering could be damaged.
 Be careful not to scratch the glass surface with the
wiper frame.
PARTS AND TOOLS
Here is a list of parts and tools you will need to perform
do−it−yourself maintenance. Remember all Lexus parts are
designed in metric sizes, so your tools must be metric.
Checking the engine oil level
Parts (if level is low):
“Toyota Genuine Motor Oil” or equivalent
See page 420 for details about engine oil selection.
Tools:
 Rag or paper towel
 Funnel (only for adding oil)
Checking the engine coolant level
Parts (if level is low):
“Toyota Genuine Long Life Coolant” or equivalent
See “Checking the engine coolant level” on page 422 for
instructions.
 Demineralized or distilled water
Tools:
 Funnel (only for adding coolant)

GAS STATION INFORMATION
Fuel selection:
Select Octane Rating 87 (Research Octane Number 91) or
higher. For improved vehicle performance, the use of
premium unleaded gasoline with an Octane Rating of 91
(Research Octane Number 96) or higher is recommended.
 Fuel tank capacity:
87 L (2 3 gal., 19.1 lmp.gal.)
 Engine oil:
“Toyota Genuine Motor Oil” or equivalent
Oil grade: API grade SL “Energy −Conserving” or ILSAC
multigrade engine oil.
Recommended oil viscosity: SAE 5W −30
Oil capacity:
Drain and refill with filter 6.2 L (6.5 qt., 5.5 lmp.qt .)
without filter 5.7 L (6.0 qt., 5.0 lmp.qt .)
See page 419 for detailed information. 
Engine coolant:
Capacity: 12.9 L (13.6 qt., 11.4 lmp.qt .)
Coolant type − ”Toyota Genuine Long Life Coolant” or
equivalent
With ethylene −glycol type coolant for a proper corrosion
protection of aluminum components
Do not use alcohol type antifreeze or plain water alone.
For checking the engine coolant, see page 422.
 Automatic transmission:
Fluid type − “Toyota Genuine ATF Type T −IV”
See page 428 for detailed information.
 Tire information:
See pages 432 through 440 for detailed information.
 Tire pressure:
Tire size: P265/65R17 110S
Tire pressure: 220kPa (2.2 kgf/cm
2 or bar, 32 psi)