reset Lexus ES350 2008 Owner's Guide

5
When trouble arises
367
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
■SRS warning light
This warning light system monitors the following:
• The airbag sensor assembly
• The front airbag sensors
• The side and curtain shield airbag sensor assemblies
• The curtain shield airbag sensor assemblies
• The driver’s seat position sensor
• The driver’s seat belt buckle switch
• Occupant detection system (ECU and sensors)
• AIR BAG ON and AIR BAG OFF indicator lights
• Front passenger’s seat belt buckle switch
• The seat belt pretensioner assemblies
• The inflators
• The interconnecting wiring and power sources
■Front passenger detection sensor and passenger seat belt reminder
If luggage or other load is placed on the front passenger seat, depending on its
weight, the reminder light may flash and buzzer may sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch does not turn off the tire pressure warning light.
■The tire pressure warning light may turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such as natural air
leaks or tire inflation pressure changes caused by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the warning light (after a few minutes).

5
When trouble arises
375
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
Warning messageDetails
(If equipped)
Indicates intuitive parking assist malfunction.A buzzer also sounds.
The malfunctioning assist-sensor is shown flashing on
the display.
(Flashing)
(Flashing)
(If equipped)
Indicates a malfunction in the radar cruise control
system. A buzzer also sounds.
Stop the vehicle in a safe place. Switch the “ENGINE
START STOP” switch to OFF and then to IGNITION
ON mode again to reset the cruise control system.
Indicates a malfunction in the TRAC and VSC sys-
tems.

378
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
Warning messageDetailsCorrection procedure
Indicates that engine oil
level is low.A buzzer also sounds.Check the level of engine
oil, and add if necessary.
(USA only)
Indicates that the engine
oil is scheduled to be
changed.
A buzzer also sounds.
Check and the engine oil,
and change if necessary.
Comes on approximately
4500 miles (7200 km)
after the engine oil is
changed. (The indicator
will not work properly
unless the oil mainte-
nance data has been
reset.)
(USA only)
Indicates that the engine
oil should be changed.A buzzer also sounds.
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).

380
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
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.
■Changing the engine oil (USA only)
Make sure to reset the oil change system. ( →P. 303)
■Warning light display in radar cruise mode
In the following cases, the warning light may not be displayed even if vehicle-to-
vehicle distance closes.
●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

390
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
■The compact spare tire
●The compact spare tire is identified by the label TEMPORARY USE ONLY on
the tire sidewall.
Use the compact spare tire temporarily only in an emergency.
●Make sure to check the tire pressure of the compact spare tire. (→P. 415)
■When using the compact spare tire
As the compact spare tire is not equipped with the tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be warned. Also, if you
replace the compact spare tire after the tire pressure warning light comes on, the
light remains on.
■If you have a flat front tire on a road covered with snow or ice (vehicles with com-
pact spare tire)
Install the compact spare tire on the rear of the vehicle. Perform the following steps
and fit tire chains to the front tires.
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehi-
cle.
Fit tire chains to the front tires.
■After completing the tire change
The tire pressure warning system must be reset. ( →P. 3 1 8 )
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