2010 Lexus ES350 brake

5
When trouble arises
437
5-1. Essential information
ES350_U
Event data recorder
In a crash or a near car crash eventThe SRS airbag sensor assembly contains the EDR. In a crash or a near
car crash event, this device may record some or all of the following infor-
mation:
● Engine speed
● Whether the brake pedal was applied or not
● Vehicle speed
● To what extent the accelerator pedal was depressed
● Position of the transmission shift lever
● Whether the driver and front passenger wore seat belts or not
● Driver's seat position
● SRS airbag deployment data
● SRS airbag system diagnostic data
● Front passenger's occupant classification
The information above is intended to be used for the purpose of improv-
ing vehicle safety performance. Unlike general data recorders, the EDR
does not record sound data such as conversation between passengers.
Your vehicle has computers that monitor and control certain aspects of
your vehicle. These computers assist in driving and maintaining optimal
vehicle performance.
Besides storing data useful for troubleshooting, there is a system to
that record data in a crash or a near car crash event.

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When trouble arises
439
ES350_U
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer:
oP. 4 5 2
Warning lightWarning light/Details
(USA)
(Canada)
Brake system warning light (warning buzzer)*
Indicates the following;
• Low brake fluid
• Malfunction in the brake booster 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.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, but then turns off, this does not necessar-
ily indicate a malfunction in the system.

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When trouble arises
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5-2. Steps to take in an emergency
ES350_U
Follow the correction procedure.After taking the specified steps to correct the suspected problem, check
that the warning light turns off.
Warning lightWarning light/Details
(USA)
(Canada)
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system.
Pre-collision system warning lightIndicates a malfunction in the pre-collision system.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer
*1)
Indicates that a door or trunk
is not fully closed.Check that all doors and the
trunk are closed.
Low fuel level warning light
Indicates remaining fuel level
is low.
(Approximately 2.8 gal.
[10.5 L, 2.3 Imp.gal.] or less)
Refuel the vehicle.
Driver’s seat belt reminder
light (warning buzzer
*2)
Warns the driver to fasten his
or her seat belt.Fasten the seat belt.

446
5-2. Steps to take in an emergency
ES350_U
■If the tire pressure warning light comes on after blinking for 1 minute frequently
If the tire pressure warning light comes on after blinking for 1 minute frequently
when the “ENGINE START STOP” switch is turned to IGNITION ON mode, have
it checked by your Lexus dealer.
■Customization that can be configured at Lexus dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features oP. 511)
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.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, 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.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

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When trouble arises
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5-2. Steps to take in an emergency
ES350_U
Warning messageDetailsCorrection procedure
Indicates that 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)
Indicates that the moon
roof is not fully closed
(with the “ENGINE
START STOP” switch
OFF and the driver’s
door opened). A buzzer also sounds.
Close the moon roof.
(Flashing)
Indicates that the parking
brake is still engaged
(with the vehicle having
reached a speed of more
than 3 mph [5 km/h]).A buzzer also sounds.
Release the parking
brake.
Indicates that the washer
fluid level is low.A buzzer also sounds.
Add washer fluid.

456
5-2. Steps to take in an emergency
ES350_U
Warning messageDetailsCorrection procedure
(Flashing and then con-tinuously on)
(Flashing)
(If equipped)
Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance
because the windshield
wipers are set at high
speed operation mode. A buzzer also sounds.
Turn them off or set them
to either the intermittent
or the slow mode.
(Flashing)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in radar cruise
mode). A buzzer also sounds.
Slow the vehicle by apply-
ing the brakes.
Indicates one or more
stop lights are burned
out.Have the defective bulbs
replaced by your Lexus
dealer.

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5-2. Steps to take in an emergency
ES350_U*: If the engine does not start when the electronic key is inside the vehicle,
the electronic key battery may be de pleted or there may be difficulties
receiving the signal from the key. ( oP. 30)
Interior
buzzerExterior buzzerWarning messageDetailsCorrection
procedure
Once
Indicates that a
door has been
opened or closed
and the “ENGINE
S TA R T S TO P ”
switch has been
switched twice to
ACCESSORY
mode from OFF.
Press the
“ENGINE START
STOP” switch
while applying the
brakes.

(Comes on for 15 seconds.)
(Flashing)
Indicates that the
steering lock has
not released.
Press the
“ENGINE START
STOP” switch
again while turn-
ing the steering
wheel with the
brake pedal
depressed.
OnceIndicates that the
electronic key
does not operate
properly.
o P. 4 76


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When trouble arises
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5-2. Steps to take in an emergency
ES350_U
If you have a flat tire
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
Jack
Jack handle
Spare tireCompact spare tire
Wr e n c h
Towing eyelet