2016 Lexus GS350 maintenance

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GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
■Use a CR2032 lithium battery
●Batteries can be purchased at your Lexus
dealer, local electrical appliance shops or
camera stores.
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to local laws.
■When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus dealer can
replace the battery for you.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart access system with push-button start and wireless remote control will not
function properly.
●The operational range will be reduced.
WA R N I N G
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking. Keep away
from children. Failure to do so could result in death or serious injury.
NOTICE
■For normal operation afte r replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote control.
●Do not bend either of the battery terminals.

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GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Checking and replacing fuses
Turn the engine switch off.
Open the fuse box cover.
If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and replace the fuses as necessary.
1
2
Engine compartment (type A fuse
box)Engine compartment (type B fuse
box)
Push the tab in and lift the lid off. Push the tab in and lift the lid off.
Driver’s side instrument panelPassenger’s side instrument panel
Remove the lid. Remove the lid.

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GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
Tr u n k
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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GS350_200t_GS F_OM_OM30E86U_(U)
4336-3. Do-it-yourself maintenance
6
Maintenance and care
Check if the fuse is blown.Normal fuse
Blown fuse
Type A and B:
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
Ty p e C a n d D :
Contact your Lexus dealer.
4
1
2
Ty p e ATy p e B
Ty p e CTy p e D

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GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. (
P. 4 3 7 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine Le xus products designed for this vehicle.
Because certain bulbs are connected to circuits designed to prevent overload, non-gen-
uine parts or parts not designed for this vehicle may be unusable.
WA R N I N G
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rati ng than that indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determ ined and repaired by your Lexus dealer as
soon as possible.

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GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Headlight aim (vehicles with single-beam head-
lights)
Adjustment bolt A
Adjustment bolt B
Make sure the vehicle has a full tank of gasoline and the area around the
headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
Vertical movement adjusting bolts
1
2
Before checking the headlight aim
1
2
3
4

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GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
Using a Phillips-head screwdriver,
turn bolt A in either direction.
Remember the turning direction and the
number of turns.
Turn bolt B the same number of turns
and in the same direction as step .
If the headlight cannot be adjusted using
this procedure, take the vehicle to your
Lexus dealer to adjust the headlight aim.
Adjusting the headlight aim
1
2
1

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GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
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Maintenance and care
Light bulbs
Check the wattage of the light bulb to be replaced. (
P. 5 5 4 )
 P. 3 9 9
Front turn signal light (vehicles with single-beam headlights)
You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems diffi-
cult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
Preparing for light bulb replacement
Removing the engine compartment covers
Bulb locations
1