2011 Lexus GS350 engine

5
When trouble arises
551
5-2. Steps to take in an emergency
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
Wa r n i n g m e s s a g eDetailsCorrection procedure
(U.S.A. only)
The engine oil should be
changed.
Check and change the
engine oil.
Comes on approximately
5000 miles (8000 km)
after the engine oil is
changed (and the oil
maintenance data has
been reset).
(If equipped)
Intuitive parking assist is
dirty or covered with ice.Clean the sensor.
(Flashing)
(If equipped)
The PCS is not currently
functional.
• Clean the grille and the sensor.
• This message appears when the pre-collision
system is hot. In this case,
wait until the system
cools down.
(Flashing)
(If equipped)
The radar cruise control
sensor is dirty or covered
with ice.
Clean the sensor.

552
5-2. Steps to take in an emergency
GS_G_U (OM30C11U)
October 28, 2011 5:15 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)
Your vehicle is nearing
the vehicle ahead (in
radar cruise mode).Slow the vehicle by apply-
ing the brakes.
(Flashing)
(If equipped)
Alerts the driver that
there is a high possibility
of collision or the pre-col-
lision braking has acti-
vated.
Depress the brake pedal.
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. ( →P. 4 5 3 )
■Approach warning message
In the following instances, there is the possibility 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.

554
5-2. Steps to take in an emergency
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
Have the malfunction repaired immediately.After taking the specified steps to correct the suspected problem, check
that the warning message and light turn off.
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection procedure
Once(Comes on for 10 seconds)
(Flashing)
The electronic key
is not detected
when attempting
to start the
engine.Confirm the
location of
the elec-
tronic key.
Once3 times
(Flashing)
An open door
other than the
driver’s door is
closed while the
electronic key is
outside the detec-
tion range and the
“ENGINE START
STOP” switch is in
ACCESSORY or
IGNITION ON
mode.
Confirm the
location of
the elec-
tronic key.

5
When trouble arises
555
5-2. Steps to take in an emergency
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
InteriorbuzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Once3 times
(Flashing)
The electronic key
was carried out-
side the vehicle
and the driver’s
door was opened
and closed with
the shift lever in P
without turning off
the “ENGINE
START STOP”
switch.Tu r n t h e
“ENGINE
START
STOP”
switch to
OFF or con-
firm the
location of
the elec-
tronic key.
Contin-
uousContin-
uous
(Displayed alternately)
(Flashing)
The electronic key
was carried out-
side the vehicle
and the driver’s
door was opened
and closed while
any shift position
other than P was
selected without
turning off the
“ENGINE START
STOP” switch.
•Shift the shift lever
to “P”.
•Confirm the loca-
tion of the
electronic
key.
Once(Comes on for 10 seconds)
(Flashing)
The electronic key
battery is low.Replace the
battery.
(→ P. 4 8 2 )

556
5-2. Steps to take in an emergency
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection procedure

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.
Once
(Comes on for 60 seconds)The electronic key
does not operate
properly.
→ P. 5 7 1

(Comes on for 10 seconds)

5
When trouble arises
557
5-2. Steps to take in an emergency
GS_G_U (OM30C11U)
October 28, 2011 5:15 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

564
5-2. Steps to take in an emergency
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to the vehicle
suddenly falling off the jack.
●Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do not use other tire jacks for replacing tires
on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●Do not put any part of your body under the vehicle supported by a jack.
●Do not start or run the engine while your vehicle is supported by the jack.
Take particular care when lowering the vehicle to ensure that no one working on or
near the vehicle may be injured.
■Replacing a flat tire
Have the wheel nuts tightened with a torque wrench to 76 ft•lbf (103 N•m, 10.5
kgf•m) as soon as possible after changing wheels.
Failure to follow these precautions could cause the nuts to loosen and the wheels
may fall off, which could lead to an accident causing death or serious injury.
■When installing the wheel nuts
Be sure to install the wheel nuts with the tapered end facing inward.( →P. 4 7 8 )

568
5-2. Steps to take in an emergency
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (→P. 133), 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. 133)
● There may be a malfunction in the immobilizer system. ( →P. 8 5 )
■ 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 74 )
● 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 74 )
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.