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GS350_GS F_OM_OM30J07U_(U)6-2. Maintenance
Vehicle exterior
ItemsCheck points
Doors/trunk• Do the doors/trunk operate smoothly?
Engine hood• Does the engine hood lock system work prop-
erly?
Fluid leaks• There should not be an y signs of fluid leakage
after the vehicle has been parked.
Tires
• Is the tire inflation pressure correct?
• The tires should not be damaged or excessively
worn.
• Have the tires been rotated according to the
maintenance schedule?
• The wheel nuts should not be loose.
Windshield wipers
• The wiper blades should not show any signs of
cracking, splitting, wear, contamination or defor-
mation.
• The wiper blades should clear the windshield without streaking or skipping.
WARNING
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.
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GS350_GS F_OM_OM30J07U_(U)6-3. Do-it-yourself maintenance
Trunk
Push the tab in and lift the lid off.
Remove the lid.
Remove the fuse with the pullout
tool.
Only type A fuse can be removed using
the pullout tool.
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4307-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
Tighten down the towing eyelet
securely using a wheel nut wrench
or hard metal bar.
Securely attach cables or chains to the towing eyelet.
Take care not to damage the vehicle body.
Enter the vehicle being towed and start the engine.
If the engine does not start, turn the engine switch to IGNITION ON mode.
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: P. 214
■While towing
If the engine is not running, the power assist for the brakes and steering will not function,
making steering and br aking more difficult.
■Wheel nut wrench
Wheel nut wrench is installed in trunk. ( P. 474, 486)
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4377-2. Steps to take in an emergency
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7
When trouble arises
(Flashes) (U.S.A.)
(Flashes)
(Canada)Parking brake indicator
Indicates a malfunction in the parking brake system
Have the vehicle inspected by your Lexus dealer immediately.
Brake system warning light
Indicates a malfunction in the parking brake system
Have the vehicle inspected by your Lexus dealer immediately.
(GS F only)
Open door warning light (warning buzzer)*1
Indicates that a door or the trunk is not fully closed
Check that all the doors and the trunk are closed.
Low fuel level warning light
Except F SPORT models of GS350, and GS F: Indicates remain-
ing fuel is approximately 2.6 gal. (10.0 L, 2.2 Imp.gal.) or less
F SPORT models of GS350: Indica tes remaining fuel is approxi-
mately 2.6 gal. (9.9 L, 2.2 Imp.gal.) or less
Refuel the vehicle.
Seat belt reminder light (warning buzzer)*2
Warns the driver and/or front passenger to fasten their seat belts
Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) off.
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warnin g system has detected a malfunc-
tion.
P. 442
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 439)
•Flat tire ( P. 473, 484)
Adjust the tire inflation pres sure to the specified level.
The light will turn off after a few minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by your Lexus dealer.
When the light comes on af ter blinking for 1 minute:
Malfunction in the tire pressure warning system
Have the system checked by your Lexus dealer.
Warning lightWarning light/Details/Actions
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4447-2. Steps to take in an emergency
GS350_GS F_OM_OM30J07U_(U)
Indicates that hood or one or more of the doors or trunk
are not fully closed
The system also indicates which hood or doors or
trunk 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 hood or door(s) or trunk are not yet fully closed.
Make sure that hood or all doors or trunk are
closed.
(If equipped)
Indicates a malfunction in the intuitive parking assist
All assist-sensors flash.
A buzzer also sounds.
Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates that intuitive parkin g assist sensor is dirty or
covered with ice A buzzer also sounds.
Clean the sensor.
Warning messageDetails/Actions
(GS350) (GS F)
(GS350)(GS F)
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4677-2. Steps to take in an emergency
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7
When trouble arises
■Warning message in radar cruise mode (if equipped)
In the following cases, the wa rning message may not be displa yed even if vehicle-to-vehi-
cle 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
■Open door warning message (GS350 only)
The open door warning message continues to display until a door or the trunk is fully
closed, even if the engine switch is turned off. However, approximately 20 minutes after a
door or the trunk is not fully closed, the batt ery-saving function operates and the display
turns off even though a door or the trunk is not fully closed.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio sound.
Page 493 of 600
4937-2. Steps to take in an emergency
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7
When trouble arises
• If the tire inflation pressure is still lower than the specified po int after inflation for
10 minutes (35 minutes at low temperature) with the switch on, the tire is too
damaged to be repaired. Turn the co mpressor switch off and contact your
Lexus dealer.
• If the tire inflation pressure exceeds th e recommended level, let out some air to
adjust the tire inflation pressure. ( P. 495, 525)
With the compressor switch off, disconnect the hose from the valve on the tire
and then pull out the power plug from the power outlet socket.
Some sealant may leak when the hose is removed.
Install the valve cap onto the valve of the emergency repaired tire.
Attach the air release cap to the end
of the hose.
If the air release cap is not attached, the
sealant may leak and the vehicle may
get dirty.
Temporarily store the bottle in the trunk while it is connected to the compres-
sor.
To spread the liquid sealant evenly within the tire, immediately drive safely for
about 3 miles (5 km) below 50 mph (80 km/h).
After driving for about 3 miles
(5 km), stop your vehicle in a safe
place on a hard, flat surface and
remove the air release cap from the
hose before reconnecting the repair
kit.
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4947-2. Steps to take in an emergency
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Turn the compressor switch on and
wait for several seconds, and then
turn it off. Check the tire inflation
pressure.If the tire inflation pressure is under
19 psi (130 kPa, 1.3 kgf/cm
2 or
bar): The puncture cannot be
repaired. Contact your Lexus
dealer.
If the tire inflation pressure is 19 psi (130 kPa, 1.3 kgf/cm
2 or bar) or higher,
but less than the recommended level: Proceed to step .
If the tire inflation pressure is the recommended level: Proceed to step .
Turn the compressor switch on to inflate the tire until the recommended tire
inflation pressure is reached. Drive for about 3 miles (5 km) and then perform
step .
Attach the air release cap to the end
of the hose.
If the air release cap is not attached, the
sealant may leak and the vehicle may
get dirty.
Store the bottle in the trunk while it is connected to the compressor.
Taking precautions to avoid sudden br aking, sudden acceleration and sharp
turns, drive carefully at under 50 mph (80 km/h) to your Lexus dealer that is
less than 62 miles (100 km) away for tire repair or replacement.
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