wheel bolts Lexus GX470 2003 Basic Functions / LEXUS 2003 GX470 OWNER'S MANUAL (OM60A45U)

DRIVING TIPS
353
Trailer lights
 Socket for trailer lights
Your vehicle is equipped with a wire harness stored in the rear
end underbody. Models with weight carrying hitch receiver are
fitted with a socket for trailer lights under the rear bumper. Use
either of them to connect and operate the trailer lights.
However, the trailer lights must comply with federal,
state/provincial and local regulations. See your local
recreational vehicle dealer or rental agency for the correct type
of wiring and relays for your trailer. Check for correct operation
of the turn signals and stop lights each time you hitch up. Direct
splicing may damage your vehicle’s electrical system and
cause a malfunction of your lights.
Breakin schedule
Lexus recommends that you do not tow a trailer with a new
vehicle or a vehicle with any new power train component
(engine, transmission, differential, wheel bearing, etc.) for the
first 800 km (500 miles) of driving.
Maintenance
 If you tow a trailer, your vehicle will require more frequent
maintenance due to the additional load. For this
information, please refer to the scheduled maintenance
information in the “Owner’s Manual Supplement /
Scheduled Maintenance”.
 Retighten all fixing bolts of the towing ball and bracket after
approximately 1000 km (600 miles) of trailer driving.
Connecting a trailer
Stop your vehicle and a trailer in line and perform the following:
1. Put the rear height control air suspension in the “LO” (low)
mode. Turn the ignition switch off or push the “HEIGHT
CONTROL OFF” switch to turn off the rear height control air
suspension.
2. Connect a trailer.
3. Turn the ignition switch on or push the “HEIGHT CONTROL
OFF” switch to turn on the rear height control air suspension.
Select the “N” (normal) mode with the height select switch.
Disconnecting a trailer
Stop your vehicle and a trailer in line and perform the following:
1. Put the rear height control air suspension in the “LO” (low)
mode. (Make sure the vehicle height is in the “LO” (low) mode
by pushing the height select switch on the “
” side.)
2. Turn the ignition switch off or push the “HEIGHT CONTROL
OFF” switch to turn off the rear height control air suspension.

IN CASE OF AN EMERGENCY
369
4. Loosen all the wheel nuts.
Always loosen the wheel nuts before raising the vehicle.
Turn the wheel nuts counterclockwise to loosen them. To get
maximum leverage, fit the wrench to the nut so that the handle
is on the right side, as shown above. Grab the wrench near the
end of the handle and pull up on the handle. Be careful that the
wrench does not slip off the nut.
Do not remove the nuts yet − just unscrew them about one −half
turn.
CAUTION
Never use oil or grease on the bolts or nuts. The nuts
may loose and the wheels may fall off, which could
cause a serious accident.
 Front (under the frame side rail)
 Rear (under the rear axle housing)
5. Position the jack at the jack points as shown.
Make sure the jack is positioned on a level and solid surface.

IN CASE OF AN EMERGENCY
371
6. After making sure no one is in the vehicle, raise it high
enough so that the spare tire can be installed.
Allow for the fact that you need more ground clearance when
putting on the spare tire than when removing the flat tire.
To raise the vehicle, insert the jack handle extension into the
jack (it is a loose fit) and turn it clockwise with the handle,
making sure the handle remains firmly fitted onto the jack
handle extension. As the jack touches the vehicle and begins
to lift, double− check that it is properly positioned.
CAUTION
Never get under the vehicle when the vehicle is
supported by the jack alone.
7. Remove the wheel nuts and remove the flat tire.
Lift the flat tire straight off and put it aside.
Roll the spare wheel into position and align the holes in the
wheel with the bolts. Then lift up the wheel and get at least the
top bolt started through its hole. Wiggle the tire and press it
back over the other bolts.

IN CASE OF AN EMERGENCY
372
Before putting on the wheel, remove any corrosion on the
mounting surfaces with a wire brush or such. Installation of
wheels without good metal−to−metal contact at the mounting
surface can cause wheel nuts to loosen and eventually cause
a wheel to come off while driving.8. Reinstall all the wheel nuts finger tight.
Reinstall the wheel nuts and tighten them as much as you can
by hand. Press the tire back and see if you can tighten them
more.
CAUTION
Never use oil or grease on the bolts or nuts. Doing so
may lead to overtightening the nuts and damaging the
bolts. The nuts may loose and the wheels may fall off,
which could cause a serious accident. If there is oil or
grease on any bolt or nut, clean it.