2012 Lexus HS250h lock

5
When trouble arises
545
5-2. Steps to take in an emergency
HS250h_U_75050UTr u n k
Turn the mechanical key clock-
wise to open.
Changing “POWER” switch modes and starting the hybrid system
Depress the brake pedal. Touch the Lexus emblem side of
the electronic key to the
“POWER” switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the elec-
tronic key.

5
When trouble arises
549
5-2. Steps to take in an emergency
HS250h_U_75050U
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system 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.
■When the 12-volt battery is discharged
●The hybrid system may not start. (→P. 4 4 8 )
●If the 12-volt battery is depleted with the shift position in P, it will not be possible
to shift out of P. In this case, the vehicle cannot be towed without lifting both
front wheels because the front wheels are locked by the parking lock.
(→ P. 4 9 5 )
●When the 12-volt battery is reconnected, start the hybrid system, depress the
brake pedal, and confirm that it is possible to shift into each shift position.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of certain
electrical appliances. If the vehicle is left for a long time, the 12-volt battery may dis-
charge, and the hybrid system may be unable to start. (The 12-volt battery
recharges automatically while the hybrid system is operating.)
Make sure the “READY” indicator comes on. If the indicator
does not come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables
in the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover and reinstall
the fuse box cover.
Once the hybrid system starts, ha ve the vehicle inspected at your
Lexus dealer as soon as possible.

561
6-1. Specifications
6
Vehicle specifications
HS250h_U_75050UThis number is also on the Certifi-
cation Label.
■ Engine number
The engine numbers is stamped on
the engine block as shown.
Engine
Model2AZ-FXE
Ty p e4-cylinder in line, 4-cycle, gasoline
Bore and stroke3.48 × 3.78 in. (88.5 × 96.0 mm)
Displacement144.1 cu.in. (2362 cm3)
Drive belt tensionAutomatic adjustment
Valve clearance
(engine cold)Intake: 0.007  0.011 in. (0.19  0.29 mm)
Exhaust: 0.015
 0.019 in. (0.38  0.48 mm)

586
6-2. Customization
HS250h_U_75050U
Customizable FeaturesVehicles with a navigation system: Settings that can be changed using
the screen of the navigation system
Vehicles with a navigation system: Settings that can be changed using
the multi-information switches
Vehicles without a navigation system: Settings that can be changed
using the multi-information switches
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available, — = Not available
ItemFunctionDefault settingCustom- ized
setting
Door lock
(
→P. 6 1 ,
544)
Unlocking using
a key
Driver’s
door
unlocked
in one step,
all doors
unlocked
in two
steps
All doors
unlocked
in one step
O——O
Speed-detect-
ing automatic
door lock func-
tion
OffOnO—OO
Selecting other
than P position
locks all doors
OnOffO—OO
Pressing the P
position switch
unlocks all doors
OnOffO—OO

587
6-2. Customization
6
Vehicle specifications
HS250h_U_75050U
Door lock
(
→P. 6 1 ,
544)
Opening
driver’s door
unlocks all doors
OffOnO—OO
Smart
access sys-
tem with
push-button
start and
wireless
remote con-
trol
(
→P. 4 7 ,
58)
Operation signal
(Emergency
flashers)
OnOffO—OO
Open door
warning buzzerOnOff———O
Operation signal
(buzzer volume)Level 7OFF to level 6O—OO
Ti m e e l a p s e d
before the auto-
matic door lock
function is acti-
vated if a door is
not opened after
being unlocked
60 sec-
onds
Off
O—OO
30 sec-onds
120 sec- onds
Smart
access sys-
tem with
push-button
start
(
→P. 4 7 )
Smart door
unlockingDriver’s doorAll the doorsO—OO
Smart access
system with
push-button
start
OnOffO—OO
Number of con-
secutive door
lock operations
2 timesAs many as desired———O
ItemFunctionDefault settingCustom-
ized
setting

588
6-2. Customization
HS250h_U_75050U
Wi re le ss
remote con-
trol
(
→P. 5 8 )
Wireless remote
controlOnOff———O
Unlocking oper-
ation
Driver’s
door
unlocked
in one step,
all doors
unlocked
in two
steps
All doors
unlocked
in one step
O—OO
Panic functionOnOff———O
Trunk unlocking
operationPress and
hold
(short)
One short press———O
Press twice———O
Press and
hold
(long)
———O
Off———O
Automatic
light control
system
(
→P. 1 9 1 )
Ti m e e l a p s e d
before the head-
lights turn off30 sec- onds
Off
O—OO
60 sec-
onds
90 sec- onds
Light sensor
sensitivityStandard-2 to 2O—OO
ItemFunctionDefault settingCustom-
ized
setting

589
6-2. Customization
6
Vehicle specifications
HS250h_U_75050U
Lights
(→ P. 1 9 1 )Daytime run-
ning light systemOnOff*O—OO
Illumination
(
→P. 3 74 )
Ti m e e l a p s e d
before the inte-
rior lights turn off
15 seconds
Off
O—OO
7. 5 s e c -
onds
30 sec-onds
Operation after
the “POWER”
switch is turned
off
OnOff———O
Operation when
the doors are
unlocked
OnOff———O
Activate on
approach of per-
son carrying
smart key
OnOff———O
Ti m e e l a p s e d
before the exte-
rior lights turn off
15 seconds
Off
O—OO
7. 5 s e c -
onds
30 sec-onds
Footwell lightingOnOff———O
*: Vehicles sold outside Canada
ItemFunctionDefault settingCustom-
ized
setting

590
6-2. Customization
HS250h_U_75050U
Illumination
(
→P. 3 74 )
Outer foot lights
activate on
approach of per-
son carrying
smart key
OnOff———O
Outer foot lights
operation when
the doors are
unlocked
OnOff———O
Remote touch
lightOnOff———O
Meter
(→ P. 1 6 9 )
Sensitivity of the
ambient light
sensor used for
dimming the
meter lights etc.
Standard-2 to 2O——O
Sensitivity of the
ambient light
sensor used for
brightening the
meter lights etc.
Standard-2 to 2O——O
Automatic
air condi-
tioning sys-
tem
(→ P. 266)
Switching
between outside
air and recircu-
lated air mode
linked to
“A U T O ” s w i t c h
operation
AutoManualO——O
ItemFunctionDefault
settingCustom-
ized
setting