Page 502 of 602
5007-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
Remove the plug.
Insert the tool and press it down
firmly while turning it counterclock-
wise until it stops.
■Manual operation of the parking brake
The parking brake cannot be set manually.
3
4
WARNING
■When releasing the parking brake manually
●Shift the shift lever to P, turn the engine switch off and chock the tires. Failure to do so
may cause the vehicle to move, resulting in an accident.
●Turn the engine switch off and check that the parking brake indicato r is off. Failure to
do so may cause the system to operate and turn the inserted parking brake release
tool, resulting in an injury.
Page 503 of 602

501
GS350_300_GS F_OM_OM30G34U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If the electronic key does not operate properly
■Doors
Use the mechanical key (→P. 133)
in order to perform the following
operations:
Locks all the doors
Closes the windows and moon
roof
* (turn and hold)
Unlocks the door
Turning the key rearward unlocks the
driver’s door. Turning the key once
again within 5 seconds unlocks the
other doors.
Opens the windows and moon roof* (turn and hold)
*: This setting must be custom ized at your Lexus dealer.
■Trunk
Turn the mechanical key clockwise
to open.
If communication between the electronic key and vehicle is interrupted
(→ P. 152) or the electronic key ca nnot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In su ch cases, the doors and trunk can be
opened and the engine can be started by following the procedure below.
Locking and unlocking the doors, unlocking the trunk and key linked
functions
1
2
3
4
Page 506 of 602
504
GS350_300_GS F_OM_OM30G34U_(U)7-2. Steps to take in an emergency
If the vehicle battery is discharged
If you have a set of jumper (or booster)
cables and a second vehicle with a 12-volt
battery, you can jump start your vehicle by following the steps below.
Confirm that the electron ic key is being carried.
When connecting the jumper (or booster) cables, depending on the situation, the
alarm may activate and doors locked. ( →P. 75)
Open the hood. ( →P. 373)
GS300/GS F: Remove the engine cover.
The following procedures may be used to start the engine if the vehicle’s bat-
tery is discharged.
You can also call your Lexus deal er or a qualified repair shop.
1
GS350/GS300GS F
2
3
GS300GS F
Raise the front of the engine cover to
remove the front clips, and then raise
the rear of the engine cover to
remove the rear clips.
Page 509 of 602

5077-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
7
When trouble arises
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period , such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will disc harge gradually even when the vehicle is not
in use, due to natural discharge and the draini ng effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
●In some cases, it may not be possible to un lock the doors using the smart access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery.
Page 522 of 602
520
GS350_300_GS F_OM_OM30G34U_(U)8-1. Specifications
This number is also on the Certifica-
tion Label.
■Engine number
The engine number is stamped on the engine block as shown.
GS350GS300
GS F
Page 528 of 602

526
GS350_300_GS F_OM_OM30G34U_(U)8-1. Specifications
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact your Lexus dealer.
Electrical system
Battery
Open voltage at 68 °F (20 °C):12.3 V or higher
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)
Charging rates5 A
Automatic transmission
Fluid capacity*
GS350 (2WD)10.0 qt. (9.5 L, 8.4 Imp.qt.)
GS350 (AWD)10.6 qt. (10.0 L, 8.8 Imp.qt.)
GS3009.2 qt. (8.7 L, 7.7 Imp.qt.)
GS F11.8 qt. (11.2 L, 9.9 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration
in shift quality, locking up of your transm ission accompanied by vibration, and ulti-
mately damage the transmission of your vehicle.
Front differential (AWD models)
Oil capacity0.74 qt. (0.70 L, 0.62 Imp.qt.)
Oil type and viscosityToyota Genuine Differential gear oil GL-5 or equivalent
Above 0 °F (-18 °C): SAE90
Below 0 °F (-18 °C): SAE80W or SAE80W-90
Page 549 of 602

GS350_300_GS F_OM_OM30G34U_(U)
5478-2. Customization
8
Vehicle specifications
*1: The default setting varies according to countries.
*2: Some status screens cannot be registered (indicated on the multi-information display)
*3: 2 of the following items: current fuel consumption, average fuel economy (after reset),
average fuel economy (after refuel), average fuel economy (after start), average vehi-
cle speed (after reset), average vehicle spee d (after start), distance (driving range),
distance (after start), elapsed time (after reset), elapsed time (after start), blank
*4:Except F SPORT models
*5:F SPORT models
*6:GS350
*7:GS300
Drive information screen displayed on
the third screen of
(Drive information 3)
Average
fuel
economy (after
refuel)
*3—O—
Elapsed time
(after start)
Pop-up displayOnOff —O—
Accent color*4Color 1Color 2OO—
Clock12-hour
display24-hour display —O—
Needle*5BlueRed—O—White
Rev indicator*55000 rpm
2000 to
6800 rpm
*6
—O—2000 to
6100 rpm*7
Off
Rev peak*5OnOff —O—
FunctionDefault settingCustomized setting123
Page 553 of 602
GS350_300_GS F_OM_OM30G34U_(U)
5518-2. Customization
8
Vehicle specifications
■BSM (Blind Spot Monitor)* (→ P. 278)
*: If equipped
■AFS (Adaptive Fron t-lighting System)* (→ P. 217)
*: If equipped
■Door lock ( →P. 137, 501)
FunctionDefault
settingCustomized setting
BSM (Blind Spot Monitor)OnOff—O—
123
FunctionDefaultsettingCustomized setting
AFS (Adaptive Front-lighting System)OnOff—O—
123
FunctionDefault
settingCustomized setting
Unlocking on second key turn
(Allows all doors to be unlocked by turn-
ing the mechanical key twice in the
driver’s door)
On
(Driver’s
door
unlocked in
one step, all
doors
unlocked in two steps)
Off
(All doors
unlocked in one
step)
——O
Automatic door lock
Shifting the
shift lever to
position
other than P
Off
O—O
Vehicle speed is approxi-
mately 12 mph (20 km/h) or
higher
Automatic door unlockShifting the
shift lever to
POff
O—ODriver’s door is opened
Locking/unlocking of the trunk when all
doors are locked/unlockedOnOff——O
123