Page 658 of 828
658
GS350_U (OM30C34U)
6-3. Do-it-yourself maintenance
14MULTIMEDIA10Navigation system, Remote Touch
15RAD NO.130Audio system
16AIR BAG10SRS airbag system, occupant classification
system
17OBD7. 5On-board diagnosis system
18ACC7. 5
Body ECU, head-up display, RR CTRL, navi-
gation system, transmission, Remote Touch,
DCM, Remote Touch screen
FuseAmpereCircuit
Page 675 of 828

675
GS350_U (OM30C34U)
When trouble arises7
7-1. Essential information Emergency flashers....................676
If your vehicle has to be stopped in an emergency .... 677 7-2. Steps to take in an emergency
If your vehicle needs to be towed ................................ 678
If you think something is wrong ................684
Fuel pump shut off system ......685
If a warning light turns on or a warning buzzer sounds .....686
If a warning message is displayed .................................697
If you have a flat tire................... 722
If the engine will not start ........ 735
If the shift lever cannot be shifted from P ......................737
If the parking brake cannot be released ................................ 738
If the electronic key does not operate properly ......................740
If the vehicle battery is discharged ..............................743
If your vehicle overheats .......... 747
If the vehicle becomes stuck .............................................. 749
Page 697 of 828
697
GS350_U (OM30C34U)
7
When trouble arises
7-2. Steps to take in an emergency
If a warning message is displayed
Master warning light
The master warning light also comes
on or flashes in order to indicate that a
message is currently being displayed
on the multi-information display.
Multi-information display
If any of the warning light comes on again after the following actions have
been performed, contact your Lexus dealer.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
If a warning is shown on the multi- information display, stay calm and
perform the following actions:
1
2
Stop the vehicle immediately. Cont inuing to drive the vehicle may
be dangerous.
Wa r n i n g m e s s a g eDetails
Indicates the following: • The brake fluid level is low; or,
• The brake booster system is malfunctioning. A buzzer also sounds.
(U.S.A.)
(Canada)
Page 698 of 828
6987-2. Steps to take in an emergency
GS350_U (OM30C34U)A buzzer sounds and a warning messa
ge is shown on the multi-informa-
tion display. The following warning in dicates the possibility of damage to
the vehicle that may lead to an acci dent. Immediately stop the vehicle in a
safe place and contact your Lexus dealer.
Stop the vehicl e immediately.
Wa r n i n g m e s s a g eDetails
Indicates abnormal engine oil pressure
The warning light may come on if the engine oil
pressure is too low.
Page 699 of 828
6997-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. Failure to investigate the cause of the following warnings may
lead to the system operating abnorma lly and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer.
Have the vehicle inspected immediately.
Wa r n i n g m e s s a g eDetails
Indicates a malfunction in the AWD system
Indicates that the automatic transmission fluid tem-
perature is too high
Indicates a malfunction in the pre-collision system
(AWD models)
(Flashes)
(If equipped)
Page 704 of 828
7047-2. Steps to take in an emergency
GS350_U (OM30C34U)A buzzer sounds and a warning messa
ge is shown on the multi-informa-
tion display. After taking the spec ified steps to correct the suspected
problem, check that the warning message goes off.
Follow the correction procedures.
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates that one or
more of the doors is not
fully closed
The system also indi-
cates which doors are
not fully closed.
If the vehicle reaches a
speed of 3 mph (5
km/h), flashes
and a buzzer sounds
to indicate that the
door(s) are not yet
fully closed.
Make sure that all the
doors are closed.
Indicates that the hood is
not fully closedIf the vehicle reaches a
speed of 3 mph (5
km/h), flashes
and a buzzer sounds
to indicate that the
hood is not yet fully
closed.
Close the hood.
Page 707 of 828
7077-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
Indicates that intuitive
parking assist sensor is
dirty or covered with ice
Clean the sensor.
Indicates that the radar
sensor is dirty or covered
with ice
Clean the sensor.
Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance
•Turn off the snowmode.
• If the windshield wip- ers are on, turn them
off or set them to a
mode other than
AUTO or high speed
wiper operation.
Indicates that your vehi-
cle is nearing the vehicle
ahead (in vehicle-to-vehi-
cle distance mode)
At the same time,
will appear on the
head-up display (the
image flashes).
Slow the vehicle by
applying the brakes.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
(If equipped)
(If equipped)
(If equipped)
Page 711 of 828
7117-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if 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 a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■The LKA (Lane-Keeping Assist) lane departure warning function
In the following cases, the warning message will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LKA system
functions
●When the lane lines cannot be recognized
●When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes