2012 Lexus GS350 ignition

207
4 4-2. Driving procedures
Driving
GS350/250_EE (OM30C36E)
Engine (ignition) switch
Check that the parking brake is set.
Check that the shift lever is set in P.
Firmly depress the brake pedal.
will be displayed on the multi-information display.
If it is not displayed, the engine cannot be started.
Press the engine switch.
The engine will crank until it starts
or for up to 30 seconds, whichever
is less.
Continue depressing the brake
pedal until the engine is com-
pletely started.
The engine can be started from any
engine switch mode.
Performing the following operations when carrying the electronic
key on your person starts the engine or changes engine switch
modes.
Starting the engine
1
2
3
4

2084-2. Driving procedures
GS350/250_EE (OM30C36E)Stop the vehicle.
Shift the shift lever to P.
Set the parking brake. (P. 225)
Press the engine switch.
Release the brake pedal and check that “POWER ON” on the
multi-information display is off.
Modes can be changed by pressing the engine switch with brake
pedal released. (The mode changes each time the switch is
pressed.)
Off*
The emergency flashers can be
used.
The multi-information display will
not be displayed.
ACCESSORY mode
Some electrical components such
as the audio system can be used.
“POWER ON” will be displayed
on the multi-information display.
IGNITION ON mode
All electrical components can be
used.
“POWER ON” will be displayed
on the multi-information display.
*: If the shift lever is in a position
other than P when turning off the
engine, the engine switch will be
Stopping the engine
Changing engine switch modes
1
2
3
4
5

2114-2. Driving procedures
4
Driving
GS350/250_EE (OM30C36E)
Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or
IGNITION ON mode (the engine is not running) for more than an hour with
the shift lever in P, the engine switch will automatically turn off. However,
this function cannot entirely prevent battery discharge. Do not leave the vehi-
cle with the engine switch in ACCESSORY or IGNITION ON mode for long
periods of time when the engine is not running.
Electronic key battery depletion
P. 1 3 4
Conditions affecting operation
P. 1 3 0
Notes for the entry function
P. 1 3 1
If the engine does not start
The engine immobilizer system may not have been deactivated. (P. 8 0 )
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Check that the shift lever is securely set in P. The engine may not start if the
shift lever is displaced out of P. “Shift to P position to Start” will be dis-
played on the multi-information display.
Steering lock
After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
engine switch again automatically cancels the steering lock.

2144-2. Driving procedures
GS350/250_EE (OM30C36E)
NOTICE
To prevent battery discharge
Do not leave the engine switch in ACCESSORY or IGNITION ON mode
for long periods of time without the engine running.
If “POWER ON” is displayed on the multi-information display, the
engine switch is not off. Exit the vehicle after turning the engine switch
off.
Do not stop the engine when the shift lever is in a position other than P. If
the engine is stopped in another shift lever position, the engine switch will
not be turned off but instead be turned to ACCESSORY mode. If the vehi-
cle is left in ACCESSORY mode, battery discharge may occur.
When starting the engine
Do not race a cold engine.
If the engine becomes difficult to start or stalls frequently, have your vehi-
cle checked by any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional immediately.
Symptoms indicating a malfunction with the engine switch
If the engine switch seems to be operating somewhat differently than usual,
such as the switch sticking slightly, there may be a malfunction. Contact
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional immediately.

2154-2. Driving procedures
4
Driving
GS350/250_EE (OM30C36E)
Automatic transmission
While the engine switch is in IGNITION ON mode, move the
shift lever with the brake pedal depressed.
When shifting the shift lever between P and D, make sure that the vehi-
cle is completely stopped.
Shifting the shift lever

2244-2. Driving procedures
GS350/250_EE (OM30C36E)
Turn signals can be operated when
The engine switch is in IGNITION ON mode.
If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned
out.
If the turn signals stop flashing before a lane change has been performed
Operate the lever again.
Customization
The number of times the turn signals flash during a lane change can be
changed.
(Customizable feature P. 855)

2264-2. Driving procedures
GS350/250_EE (OM30C36E)The parking brake is set or released automatically according to shift
lever operation.
Turns automatic mode on/off
When the shift lever is moved
out of P, the parking brake will
be released.
When the shift lever is moved
into P, the parking brake will
be set.
Operate the shift lever with the
brake pedal depressed.
Parking brake operation
When the engine switch is not in IGNITION ON mode, the parking brake
cannot be released using the parking brake switch.
When the engine switch is not in IGNITION ON mode, automatic mode
(automatic brake setting and releasing) is not available.
If the parking brake is operated repeatedly over a short period of time, the
system may restrict operation to prevent overheating. If this happens,
refrain from operating the parking brake. Normal operation will return after
about 1 minute.
Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
Parking brake indicator light
Depending on the engine switch mode, the parking brake indicator light
will come on and stay on as described below:
IGNITION ON mode: Comes on until the parking brake is released.
Not in IGNITION ON mode: Stays on for approximately 15 seconds.
When the engine switch is turned off with the parking brake set, the parking
brake indicator light will stay on for about 15 seconds. This does not indi-
cate a malfunction.
Automatic mode

2284-3. Operating the lights and wipers
GS350/250_EE (OM30C36E)
Headlight switch
Turning the end of the lever turns on the lights as follows:
The front position, tail,
license plate and instru-
ment panel lights turn on.
The headlights and all
lights listed above turn
on.
The headlights, daytime
running lights and all the
lights listed above turn on
and off automatically.
(When the engine switch
is in IGNITION ON
mode.)
The daytime running
lights turn on.
The headlights can be operated manually or automatically.
Operating instructions
1
2
3
4