2009 Lexus GS450h reset

460
4-3. Do-it-yourself maintenance
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
CAUTION
■Tire pressure warning system operation
The tire pressure warning system may not provide warning immediately if a tire
bursts or if sudden air leakage occurs.
■When inspecting or replacing tires
Observe the following precautions to prevent accidents. Failure to do so may cause
damage to parts of the drive train, as well as dangerous handling characteristics,
which may lead to an accident resulting in death or serious injury.
●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Lexus.
●Do not mix differently constructed tires (radial, bias-belted or bias-ply tires).
●Do not mix summer, all season and winter tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
■When initializing the tire pressure warning system
Do not push the tire pressure warning reset switch without first adjusting the tire
inflation pressure to the specified level. Otherwise, the tire pressure warning light
may not come on even if the tire inflation pressure is low, or it may come on when
the tire inflation pressure is actually normal.
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5-2. Steps to take in an emergency
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
■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).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with the tire pressure warning valve and
transmitter. If a tire goes flat, the tire pressure warning light will not turn off even
though the flat tire is replaced with the spare tire. Replace the spare tire with the
repaired tire and adjust the proper tire inflation pressure. The tire pressure warning
light will turn off after a few minutes.
■If the tire pressure warning system is inoperative
The tire pressure warning system will be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmitters are used.
●If the ID code on the tire pressure warning valves and transmitters is not regis-
tered in the tire pressure warning computer.
●If the tire pressure warning select switch is set to a different tire setting.
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or higher.
The tire pressure warning system may be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If there is a lot of snow or ice on the vehicle, in particular around the wheels or
wheel housings.
●If non-genuine Lexus wheels are used. (Even if you use Lexus wheels, the tire
pressure warning system may not work properly with some types of tires.)
●If tire chains are used.
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5-2. Steps to take in an emergency
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Wa r n i n g m e s s a g eDetails
(If equipped)
Intuitive parking assist malfunction.The malfunctioning sensor is shown flashing on the
display.
(If equipped)
Malfunction in the active stabilizer suspension sys-
tem.
(If equipped)
Malfunction in the PCS.
(Flashing)
(If equipped)
Malfunction in the radar cruise control system. Stop the vehicle in a safe place. Turn the “POWER”
switch to OFF and then to ON mode again to reset
the cruise control system.
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526
5-2. Steps to take in an emergency
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Wa r n i n g m e s s a g eDetailsCorrection procedure
The engine oil level is low.Check the engine oil level,
and add if necessary.
(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.
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5-2. Steps to take in an emergency
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashing)
The gasoline engine can-
not operate or the shift
lever is in “N” for a long
time.
Stop the vehicle and shift
the shift lever to “P”.
(Flashing)
The transmission is out of
“P” when attempting to
start the hybrid system.Shift the shift lever to “P”
before pressing the power
switch.
(Flashing)
The driver’s door is
opened when the trans-
mission is out of “P” with
the hybrid system on.
Shift the shift lever to “P”.
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. (→ P. 4 4 2 )
■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.
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5-2. Steps to take in an emergency
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Firmly tighten each nut two or
three times in the order shown in
the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Stow the flat tire, tire jack and all tools.
STEP4
■If you have a flat rear tire on a road covered with snow or ice
Install the compact spare tire on the front of the vehicle. Perform the following steps
and fit tire chains to the rear tires.Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the vehi-
cle.
Fit tire chains to the rear tires.
■After completing the tire change
The tire pressure warning system must be reset. ( →P. 4 5 3 )
STEP5
STEP1
STEP2
STEP3
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610
Alphabetical index
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Smart access system with push-button start
Antenna location..................................... 41
Entry function.......................................... 39
Starting the hybrid system .................................... 148
Spare tire Inflation pressure................................ 572
Storage location ................................. 537
Spark plug ................................................569
Specifications .........................................564
Speedometer........................................... 159
Steering wheel Adjustment.................................................81
Audio switches ................................... 320
Steering wheel position
memory.................................................. 66
Storage compartment ........................ 376
Storage feature...................................... 372
Stuck
If your vehicle becomes stuck.... 560
Sun visors ................................................. 379
Switch Fog light switch..................................... 172
Ignition switch....................................... 148
Light switches ........................................169
Mode select switch.............................153
Power door lock switch .................... 54
“POWER” switch ............................... 148
Power window switch ........................85
Tire pressure warning reset switch ....................................... 453
Tire pressure warning select switch ...................455
Window lock switch ...........................85
Wipers and washer switch ............. 173 Tail lights
Switch ........................................................ 169
Theft deterrent system Alarm.......................................................... 98
Immobilizer system ..............................96
Theft prevention labels........................ 100
Tire inflation pressure ......................... 572
Tire information
Glossary ................................................ 583
Size ...........................................................580
Tire identification number ............. 579
Uniform Tire Quality Grading .....581
Tires Chains......................................................233
Checking............................................... 452
Compact spare tire...........................537
If you have a flat tire .............536, 546
Inflation pressure ................................572
Information ............................................577
Replacing .............................................. 536
Rotating tires........................................ 452
Size ............................................................572
Snow tires.............................................. 235
Tire pressure warning system..... 452
Tools........................................................... 536
Total load capacity .................................231
Touch screen.......................................... 240
Towing Dinghy towing ..................................... 237
Emergency towing .............................501
Trailer towing .......................................236
Traction control.......................................214T
GS450h_HV_U.book Page 610 Monday, April 27, 2009 10:10 AM