Sound system LEXUS LX570 2014 Repair Manual

5
When trouble arises
8135-1. Essential information
LX570_OM_OM60L21U_(U) If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission. Contact
your Lexus dealer, before towing.
● The engine is running, but the vehicle will not move.
● The vehicle makes an abnormal sound. If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing se rvice, using a lift-type truck or a flat
bed truck.
Use a safety chain system for all towi ng, and abide by all state/provincial
and local laws.
Use a towing dolly or flat bed truck.

5
When trouble arises
8195-1. Essential information
LX570_OM_OM60L21U_(U) If you think something is wrong If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■ Visible symptoms
● Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temper ature gauge needle continually points
higher than normal
● Engine oil pressure gauge continually points lower than normal.
● Voltmeter continually points higher or lower than normal.
■ Audible symptoms
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
● Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, sp ongy feeling, pedal almost touches
the floor

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When trouble arises
821
LX570_OM_OM60L21U_(U) 5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...Stop the vehicle immediately. Continui ng to drive the vehicle may be
dangerous.
The following warning in dicates a possible problem in the brake system.
Immediately stop the vehi cle in a safe place and contact your Lexus
dealer.
* : Parking brake engaged warning buzzer:
A buzzer sounds to indicate that the parking brake is still engaged (with the
vehicle having reached a speed of 3 mph [5 km/h]).
Stop the vehicle immediately.
The following warning indicates the po ssibility of damage to the vehicle
that may lead to an ac cident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer. Warning light Warning light/Details
(U.S.A.)
(Canada) Brake system warning light (warning buzzer)
*•Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released the system is operating normally.
Warning light Warning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, bu t then turns off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.

5
When trouble arises
8255-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) * 1
: Open door warning buzzer:
The open door warning buzzer sounds to alert one or more of the doors is not
fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).
* 2
: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt
is not fastened. Once the engine switch is turned to IGNITION ON mode,
the buzzer sounds for 6 seconds. If the vehicle reaches a speed of 12 mph
(20 km/h), the buzzer sounds once. If the seat belt is still unfastened after 30
seconds, the buzzer will sound intermitte ntly for 10 seconds. Then, if the seat
belt is still unfastened, the buzzer will sound in a different tone for 20 more
seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer sounds to alert the front passenger that
his or her seat belt is not fastened. The buzzer sounds once if the vehicle
reaches a speed of 12 mph (20 km/h). If the seat belt is still unfastened after 30
seconds, the buzzer will sound intermitte ntly for 10 seconds. Then, if the seat
belt is still unfastened, the buzzer will sound in a different tone for 20 more
seconds. Master warning light
A buzzer sounds and the
warning light comes on or
flashes to indicate that the
master warning system has
detected a malfunction.  P. 8 3 2Warning light Warning light/Details Correction procedure

5
When trouble arises
8335-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) Have the vehicle inspected by your Lexus dealer immediately.
Failure to investigate the cause of th e following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately. Wa r n i n g m e s s a g e Details
Indicates a malfunction in the automatic transmission
system
A buzzer also sounds.
Indicates a malfunction in the steering lock system
A buzzer also sounds.

8345-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) (If equipped) Indicates a malfunction in the pre-collision system
A buzzer also sounds.
(If equipped) Indicates a malfunction in the intuitive parking assist
The site of malfunction is shown flashing on the dis-
play.
Indicates a malfunction in the cruise control system
Press the “ON-OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
Indicates a malfunction in the dynamic radar cruise
control system (if equipped)
Press the “ON-OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.Wa r n i n g m e s s a g e Details

5
When trouble arises
8355-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) Indicates a malfunction in the VGRS
A buzzer also sounds.
Indicates a malfunction in the 4-wheel AHC system
A buzzer also sounds.
(If equipped) Indicates a malfunction in the automatic high beam
A buzzer also sounds.Wa r n i n g m e s s a g e Details

8365-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) Follow the correction procedures.
After taking the specified steps to co rrect the suspected problem, check
that the warning message goes off. Wa r n i n g m e s s a g e Details Correction 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.

5
When trouble arises
8415-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) Wa r n i n g m e s s a g e Details Correction procedure
(If equipped) Indicates that the
dynamic radar cruise
control system is unable
to judge vehicle-to-vehi-
cle distance • Switch driving mode to
either normal or power.
• If the windshield wipers
are on, turn them off or
set them to either inter-
mittent or slow mode.
(Flashes)
(If equipped) Indicates that your vehi-
cle is nearing the vehicle
ahead (in vehicle-to-vehi-
cle distance control
mode)
A buzzer also sounds. Slow the vehicle by apply-
ing the brakes.
Indicates that remaining
fuel is approximately 4.0
gal. (15.0L, 3.3 Imp.gal.)
or less Refuel the vehicle.

5
When trouble arises
8635-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) If the engine will not start If the engine still does not start afte r following the correct starting proce-
dure (  P. 175) or releasing the steering lock (  P. 177), confirm the fol-
lowing points.
■ The engine will not start even when the starter motor operates
normally
One of the following may be the cause of the problem.
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. (  P. 175)
● There may be a malfunction in the engine immobilizer system.
(  P. 117)
■ The starter motor turns over slow ly, 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 battery may be discharged. (  P. 870)
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over
The engine starting system may be malfunctioning due to an electri-
cal problem such as an open ci rcuit or a blown fuse. However, an
interim measure is available to start the engine. (  P. 8 6 4 )