2012 Lexus GS250 parking brake

817
7 7-2. Steps to take in an emergency
When trouble arises
GS350/250_EE (OM30C36E)One of the following may be the cause of the problem:
One or both of the battery terminals may be disconnected.
The battery may be discharged. (P. 825)
There may be a malfunction in the steering lock system.
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional if the problem cannot be repaired, or if repair
procedures are unknown.
When the engine does not start, the following steps can be used as
an interim measure to start the engine if the engine switch is func-
tioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the vehicle inspected by any autho-
rized Lexus dealer or repairer, or another duly qualified and
equipped professional.
The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound.
Emergency start function
1
2
3
4

8187-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
If the shift lever cannot be shifted from P
Set the parking brake.
Turn the engine switch to ACCESSORY mode.
Depress the brake pedal.
Press the shift lock override
button.
The shift lever can be shifted while
the button is pressed.
If the shift lever cannot be shifted with your foot on the brake
pedal, there may be a problem with the shift lock system (a system
to prevent accidental operation of the shift lever). Have the vehicle
inspected by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional immediately.
The following steps may be used as an emergency measure to
ensure that the shift lever can be shifted:
1
2
3
4

8197-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
If the parking brake cannot be released
Shift the shift lever to P.
Turn the engine switch off.
Check that the parking brake indicator is off.
Chock the tires.
In the event that the battery is discharged or switch operation does
not release the parking brake, the parking brake can be released
manually using the procedure below. This procedure should be
performed only if necessary, such as in an emergency.
If the switch cannot be operated even when the battery is normal,
the parking brake system may be malfunctioning. Have the vehicle
inspected by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional immediately.
Before releasing the parking brake manually

8207-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)Take out the parking brake
release tool and the screw-
driver from the trunk. (P.
784, 799)
Fit the parking brake release tool
into the screwdriver handle.
Vehicles with a spare tire: Take out the spare tire. (P. 788)
Vehicles without a spare tire: Remove the center auxiliary box.
(P. 802)
Remove the plug.
Insert the tool and press it
down firmly while turning it
counterclockwise until it
stops.
Releasing the parking brake manually
1
2
3
Vehicles with a compact
spare tire or an emergency
tire puncture repair kitVehicles with a full-size
spare tire
4

821
7 7-2. Steps to take in an emergency
When trouble arises
GS350/250_EE (OM30C36E)
Manual operation of the parking brake
The parking brake cannot be set manually.
CAUTION
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 indicator is
off. Failure to do so may cause the system to operate and turn the inserted
parking brake release tool, resulting in an injury.

8337-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
If the vehicle becomes stuck
Stop the engine. Set the parking brake and shift the shift lever to
P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material under the rear wheels
to help provide traction.
Restart the engine.
Shift the shift lever to D or R and release the parking brake.
Then, while exercising caution, depress the accelerator pedal.
When it is difficult to free the vehicle
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Press to turn off TRC.
1
2
3
4
5

865
8 8-2. Customization
Vehicle specifications
GS350/250_EE (OM30C36E)
Vehicle customization
When the smart entry & start system is off, the “Select doors to unlock”
cannot be customized.
When the doors remain closed after unlocking the doors and the “Auto
relock timer” activates, the signals will be generated in accordance with the
“Lock/unlock feedback lights” settings.
When customizing using the Remote Touch
Stop the vehicle in a safe place, apply the parking brake, and shift the shift
lever to P. Also, to prevent battery discharge, leave the engine running while
customizing the features.
CAUTION
During customization
As the engine needs to be running during customization, ensure that the
vehicle is parked in a place with adequate ventilation. In a closed area such
as a garage, exhaust gases including harmful carbon monoxide (CO) may
collect and enter the vehicle. This may lead to death or a serious health haz-
ard.
NOTICE
During customization
To prevent battery discharge, ensure that the engine is running while cus-
tomizing features.

872What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat
belts?
(P. 752)
The parking brake indicator is on
Is the parking brake released? (P. 225)
Depending on the situation, other types of warning buzzer
may also sound. (P. 749, 757)

Did anyone inside the vehicle open a door or anything
move inside the vehicle during setting the alarm?
The sensor detects them and the alarm sounds. (P. 86)
To stop the alarm, turn the engine switch to IGNITION ON
mode or start the engine. A warning buzzer sounds during driving
An alarm is activated and the horn sounds (if equipped)