Lexus GS350 2008 Owner's Manual

520
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
CAUTION
■When using the compact spare tire
●Remember that your spare tire is specifically designed for use with your vehicle.
Do not use your spare tire on another vehicle.
●Do not use two spare tires simultaneously.
●Replace the spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, deceleration and braking, as well as sharp cornering.
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failing to observe
this precaution may lead to an accident causing death or serious injury.
GS_U_G.book Page 520 Thursday, June 19, 2008 12:54 PM

5
When trouble arises
521
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
NOTICE
■Do not drive the vehicle with a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the wheel
beyond repair.
■Be careful when driving over bumps with the compact spare tire installed on the
vehicle
The vehicle becomes lower when driving with the compact spare tire compared to
when driving with standard tires. Be careful when driving over uneven road sur-
faces.
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving performance.
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter may be damaged if not handled correctly.
■To avoid damaging the tire pressure warning valves and transmitters
Do not use liquid sealants on flat tires.
GS_U_G.book Page 521 Thursday, June 19, 2008 12:54 PM

522
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
If you have a flat tire (Vehicles with run-flat tires)
■In some condition (such as at high temperatures)
You can not continue driving for up to 100 miles (160 km).
■If you cannot distinguish between the standard tires and run-flat tires
Consult your Lexus dealer.
■For the detailed information on run-flat tires
See the tire warranty book.
NOTICE
■When replacing the tires
Have the tires replaced by the nearest Lexus dealer or authorized tire dealer. The
tire pressure warning valves and transmitters will be affected by the installation or
removal of tires.
■To avoid damaging the tire pressure warning valves and transmitters
Do not use liquid sealants on flat tires.
Take your vehicle to the nearest Lexus dealer or authorized tire dealer as
soon as possible.
■ Run-flat tires (A “RFT” or “DSST” mark is molded on the sidewall)
You can continue driving a vehi-
cle with run-flat tires even if any
tire goes flat.
It is able to run for a maximum of
100 miles (160 km) at a speed
below 55 mph (90 km/h) after
the tire pressure warning light
comes on. ( →P. 4 9 0 )
GS_U_G.book Page 522 Thursday, June 19, 2008 12:54 PM

5
When trouble arises
523
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (→P. 121), consider each of the following points.
■The engine will not start even if you are carrying the correct elec-
tronic key
One of the following may be the cause of the problem.
● There may not be sufficient fuel in the vehicle’s tank.
Add fuel to the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 121)
● There may be a malfunction in the immobilizer system. ( →P. 7 3 )
■ The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume
One of the following may be the cause of the problem.
● The 12 volt battery may be discharged. ( →P. 5 2 9 )
● The 12 volt battery terminal connections may be loose or corroded.
■ The starter motor does not turn ov er, the interior lights and head-
lights do not turn on, or the horn does not sound
One of the following may be the cause of the problem.
● One or both of the 12 volt battery terminals may be disconnected.
● The 12 volt battery may be discharged. ( →P. 5 2 9 )
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.
GS_U_G.book Page 523 Thursday, June 19, 2008 12:54 PM

524
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
If the shift lever cannot be shifted from “P”
If the shift lever cannot be shifted with your foot on the brake, there may be
a problem with the shift lock system (a system to prevent accidental opera-
tion of the shift lever). Have the vehicle inspected by your Lexus dealer
immediately.
The following steps may be used as an emergency measure to ensure that
the shift lever can be shifted.
Set the parking brake.
Turn the “ENGINE START STOP” switch to the ACCESSORY
mode.
Depress the brake pedal.
Pry the cover up with a flathead
screwdriver or equivalent.
Press the shift lock override but-
ton.
The shift lever can be shifted
while the button is pressed.
STEP1
STEP2
STEP3
STEP4
STEP5
GS_U_G.book Page 524 Thursday, June 19, 2008 12:54 PM

5
When trouble arises
525
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
If you lose your keys
New genuine Lexus keys can be made by your Lexus dealer using one of
the other keys and the key number stamped on your key number plate.
GS_U_G.book Page 525 Thursday, June 19, 2008 12:54 PM

526
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked
functions
Doors Using the mechanical key in order
to perform the following opera-
tions:
Locks all doors
Closes the windows/moon roof
(turn and hold)
Unlocks the door
Tu r n i n g t h e k e y r e a r w a r d u n l o c k s
the driver’s door.
Turning the key once again unlocks
the other doors.
Opens the windows/moon roof
(turn and hold)
If communication between the electronic key and vehicle is interrupted
(
→P. 26) or the electronic key cann ot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors and trunk can be
opened or the engine can be started by following the procedure below.
GS_U_G.book Page 526 Thursday, June 19, 2008 12:54 PM

5
When trouble arises
527
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
Tr u n kTurn the mechanical key clock-
wise to open.
Changing “ENGINE START STOP” switch modes and starting the
engine
Put the shift lever in “P” and apply the brakes. Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
STEP1
STEP2
GS_U_G.book Page 527 Thursday, June 19, 2008 12:54 PM

528
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
To change the “ENGINE START STOP” switch modes: Within 10
seconds of the buzzer sounding, release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed. (
→P. 122)
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds after the buzzer sounds, keeping the brake
pedal depressed.
If the “ENGINE START STOP” switch still cannot be operated, contact
your Lexus dealer.
■Stopping the engine
Shift the shift lever to “P” and press th e “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
■Replacing the key battery
As the above procedure is the temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery depletes.
( → P. 440)
STEP3
GS_U_G.book Page 528 Thursday, June 19, 2008 12:54 PM

5
When trouble arises
529
5-2. Steps to take in an emergency
GS_G_U
June 19, 2008 12:54 pm
If the 12 volt battery is discharged
The following procedures may be used to start the engine if the 12 volt bat-
tery is discharged.
You can call your Lexus dealer or qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle
with a 12 volt battery, you can jump start your Lexus following the steps
below.
Open the door using the mechanical key, then open the hood.
GS350: Remove the engine compartment covers.
Connecting the jumper cables.
GS460
STEP1
STEP2
GS_U_G.book Page 529 Thursday, June 19, 2008 12:54 PM