2008 Lexus GS350 brake

494
5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Vehicles with standard tires:
• Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Check the tires. If the tire is
flat, change to the spare tire and have the flat tire repaired by the nearest
Lexus dealer.
• Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
●Vehicles with run-flat tires:
• Decelerate to the lowest appropriate speed as soon as possible. Do not drive over 55 mph (90 km/h).
• Check and adjust the tire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Have the tire replaced by
the nearest Lexus dealer.
• Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

500
5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
Wa r n i n g m e s s a g eDetails
(Flashing)
(If equipped)
Malfunction in the radar cruise control system. Stop the vehicle in a safe place. Turn the “ENGINE
START STOP” switch to OFF and then to IGNITION
ON mode again to reset the cruise control system.
Malfunction in the charging system.
Malfunction in the power steering system.
Malfunction in the brake system.
Malfunction in the ABS.

5
When trouble arises
501
5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
Have the vehicle inspected immediately.Failing to investigate the cause of th e following warning may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
*: Electronically Controlled Brake System
Wa r n i n g m e s s a g eDetails
Malfunction in the TRAC, VSC or hill-start assist con-
trol system.
GS460: “CHECK ECB
*” may be displayed at the
same time, or on its own.
(U.S.A)
(Canada)
Malfunction in the ABS or brake assist system. GS460: “CHECK ECB*” may be displayed at the
same time, or on its own.
(GS460)
Malfunction in the VGRS.
(If equipped, steering guide symbol and
arrows are flashing)
The steering sensor cable is broken and signals can-
not be received.

5
When trouble arises
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5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
Wa r n i n g m e s s a g eDetailsCorrection procedure
The trunk is not fully
closed. flashes and a
buzzer sounds to indi-
cate that trunk is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
Close the trunk.
(Flashing)
(If equipped)
The moon roof is not fully
closed (with the
“ENGINE START STOP”
switch is OFF and the
driver’s door opened).
Close the moon roof.
(Flashing)
The parking brake is still
engaged (with the vehicle
having reached a speed
of more than 3 mph [5
km/h]).
Release the parking
brake.
The washer fluid level is
low.Add washer fluid.

506
5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashing)
(If equipped)
The radar cruise control
system is unable to judge
vehicle-to-vehicle dis-
tance.
• Turn the mode select switch to either the nor-
mal or power mode.
• If the windshield wipers are on, turn them off or
set them to either the
intermittent or the slow
mode.
(If equipped, flashing)
Yo u r v e h i c l e i s n e a r i n g
the vehicle ahead (in
radar cruise mode).Slow the vehicle by apply-
ing the brakes.
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. ( P. 4 1 2 )
■Approach warning message
In the following instances, there is the poss ibility that the approach warning will not
activate even when the vehicle-to-vehicle distance decreases.
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle.
●When the vehicle ahead is traveling at very low speed.
●Immediately after cruise control speed is set.
●At the instant the accelerator pedal is depressed.

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5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
InteriorbuzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
Once
(Flashing)
The electronic key
battery is low.Replace the
battery.
( P. 4 4 0 )

An open door has
been closed and
the “ENGINE
START STOP”
switch has been
turned twice to
the ACCES-
SORY mode from
OFF.
Press the
“ENGINE
START
STOP”
switch while
applying the
brakes.

(Flashing)
The steering lock
has not released
within 3 seconds
of pressing the
“ENGINE START
STOP” switch.
The “ENGINE
START STOP”
switch indicator
will flash green for
15 seconds.Press the
“ENGINE
START
STOP”
switch again
while turn-
ing the
steering
wheel with
the brake
pedal
depressed.

512
5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
If you have a flat tire (Vehicles with standard tires)
Remove the flat tire and replace it with the spare provided.
■Before jacking up the vehicle
●Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to “P”.
● Stop the engine.
● Turn on the emergency flashers.
■ Location of the spare tire, jack and tools
Wheel nut wrench Jack
Jack handle
Spare tireTi g h t e n
Loosen
Tools
Towing eyelet

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5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 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.
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