heating lexus LFA 2012 Owner's Manual / LEXUS 2012 LFA OWNERS MANUAL (OM77006U)

35
1-3. Adjustable components (seats, mirrors, steering wheel)
1
Before driving
CAUTION
■If the seat belt guide is disengaged
●Make sure that the seat belt guide is securely fixed before driving.
●After using the seatback fold and return switch, make sure that the seat belt
passes through the seat belt guide.
■Avoiding burns when using the seat heaters
●Use caution when seating the following pers ons in a seat with the seat heater on
to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the physically challenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs,
cold remedies, etc.)
●Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature of the
seat and may lead to overheating.
●Do not use the seat heater more than necessary. Doing so may cause minor
burns or overheating.
NOTICE
■To prevent seat heater damage
Do not put heavy objects that have an unev en surface on the seat and do not stick
sharp objects (needles, nail s, etc.) into the seat.
■To prevent battery discharge
Turn the seat heaters off when the engine is not running.

95
2-1. Driving procedures
2
When driving
CAUTION
■Exhaust gases
Exhaust gases include harmful carbon monoxide (CO), which is colorless and
odorless. Inhaling exhaust gases may lead to death or a serious health hazard.
●If the vehicle is in a poorly ventilated ar ea, stop the engine. In a closed area, such
as a garage, exhaust gases may collect and enter the vehicle. This may lead to
death or a serious health hazard.
●The exhaust system should be checked occasionally. If there is a hole or crack
caused by corrosion, damage to a joint or abnormal exhaust noise, be sure to
have the vehicle inspected and repaired by your Lexus dealer. Failure to do so
may allow exhaust gases to enter the vehicl e, resulting in death or a serious health
hazard.
■When taking a nap in the vehicle
Always turn the engine off. If you take a nap with the engine on, you may acciden-
tally depress the accelerator and an accident or fire may occur due to engine over-
heating. In addition, if the vehicle is parked in a poorly ventilated area, exhaust gases
may enter the vehicle, leading to death or a serious health hazard.
■When braking the vehicle
●Be especially careful if the brakes are wet, such as when driving on wet or snowy
roads or immediately after washing the vehicle. When the brakes are wet, their
efficiency may be reduced and the vehicle may brake unevenly to the left or right.
The efficiency of the parking brake may also be reduced.
●The brake system consists of 3 individual hydraulic systems; if one of the systems
fails, the others will still operate. In th is case, the brake pedal should be depressed
more firmly than usual and the braking distance will increase. If this happens, do
not continue to drive the vehicle. If the brake system warning light (red indicator)
comes on together with the buzzer sound while driving, immediately stop the
vehicle in a safe place and contact your Lexus dealer.

113
2-1. Driving procedures
2
When driving
Parking brake
For the parking brake, an electrical parking brake system is adopted.
Press the switch to set the park-
ing brake.
If the parking brake switch is oper-
ated when the ignition switch is not
in the “ON” position, the parking
brake indicator light will come on
and stay on for a while.
Press and hold the parking brake
switch if an emergency occurs and
it is necessary to operate the park-
ing brake while driving. The park-
ing brake is applied only while the
switch is being pressed.
Pull the switch to release the
parking brake.
Operate the parking brake switch
while depressing the brake pedal.
Make sure that the parking brake
indicator light goes off.
U.S.A.
Canada
■Parking brake operation
●When the ignition switch is not in th e “ON” position, the parking brake cannot
be released using the parking brake switch.
●If the parking brake is operated repeated ly over a short period of time, the sys-
tem may restrict operation to prevent over heating. In this case, “Parking brake
overheat” is shown on the meter. ( P. 3 2 7 )
■Parking brake operation sound
The motor sounds when the parking brake operates. This does not indicate a mal-
function.
■Parking brake indicator light
When the ignition switch is turned to the “ACC” or “LOCK” position with the park-
ing brake set, the parking brake indicator light will stay on for a while. This does not
indicate a malfunction.

114
2-1. Driving procedures
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. (P. 325, 327)
Depending on the condition, the parking brake indicator light may flash.
NOTICE
■When parking the vehicle
Before you leave the vehicle, set the parking brake, select 1st gear or Reverse, and
stop the engine. Make sure that the vehicle does not move.
■When the system malfunctions
Stop the vehicle in a safe place and check the warning messages.
■When the parking brake cannot be released due to a malfunction
Use the parking brake release tool to manually release the parking brake.
(  P. 3 4 5 )
Driving the vehicle with the parking brake set will lead to brake components over-
heating, which may affect braking performance and increase brake wear.

120
2-2. Instrument cluster
■Outside temperature display
●The temperature display shows temperatures within the range of -40F (-40C)
and 122 F (50C).
●In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change:
• When the vehicle is stopped, or moving at low speeds (less than 15 mph [25
km/h])
• When the outside temperature has chan ged suddenly (at the entrance/exit of
a garage, tunnel, etc.)
●When “--” or “E” is displayed, the system may be malfunctioning. Take your vehi-
cle to your Lexus dealer.
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone.
●The following may indicate that the engine is overheating. Immediately stop the
vehicle in a safe place.
• The display on the engine coolant temperature gauge flashes. (
P. 3 5 1 )
• The display on the engine oil temperature gauge flashes. (
P. 313)
●In the following situations, the engine may be malfunctioning. Immediately stop
the vehicle in a safe place and contact your Lexus dealer.
• The oil pressure gauge display does not show an increase even if the acceler-
ator pedal is depressed.
• The “Engine oil pressure low” warning message is displayed.

168
2-4. Using other driving systems
■Hill-start assist control operation conditions
●The vehicle rolls backward.
●A forward gear is selected.
●The brake pedal is not depressed.
■Automatic reactivation of the VSC/TRAC systems
If the VSC/TRAC systems are turned off, re-starting the engine will automatically
reactivate them.
■Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and hill-start
assist control systems
●A sound may be heard from the engine compartment if the brake pedal is
depressed repeatedly when the engine is started or just after the vehicle begins
to move. This sound does not indicate that a malfunction has occurred in any of
these systems.
●Any of the following conditions may occur when the above systems are operat-
ing. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■EPS operation sound
When the steering wheel is operated, a motor sound may be heard. This does not
indicate a malfunction.
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from over-
heating when there is frequent steering in put over an extended period of time. The
steering wheel may feel heavy as a result. Should this occur, refrain from excessive
steering input or stop the vehicle and turn the engine off. The EPS system should
return to normal within 10 minutes.
■If the slip indicator comes on
It may indicate a malfunction in the VSC, TRAC or hill-start assist control system.
Contact your Lexus dealer.

234
4-1. Maintenance and care
NOTICE
■When using high pressure car washes
Do not aim the head of the nozzle at the hood
grilles or radiator grilles.
Doing so may negatively affect the engine or
cause a malfunction in the electric cooling fan
motors that may result in overheating.

328
5-2. Steps to take in an emergency
Indicates that the rear
hatch is not fully closed. flashes and a
buzzer sounds to indi-
cate that the rear hatch
is not fully closed (with
the vehicle having
reached a speed of 3
mph [5 km/h]). Close the rear hatch.
(Flashes)
(U.S.A.)
(Canada) Indicates that the parking
brake is still engaged.
May come on if the vehi-
cle reaches a speed of 3
mph (5 km/h). Release the parking
brake. (
P. 113)
(Flashes)
(U.S.A.)
(Flashes)
(Canada)
(Flashes) Indicates that parking
brake operation is
restrained.
Parking brake operation
is restrained to protect
the system from over-
heating due to repeated
operation of the parking
brake. Refrain from operating the
parking brake for 1 minute.
MessageDetailsCorrection procedure

330
5-2. Steps to take in an emergency
Indicates that gear shift-
ing is restrained tempo-
rarily (due to overheating
of the transmission
pump).Gear shifting is not pos-
sible while this message
is displayed. Refrain from operating the
paddle shift switches for 5
or more seconds.
Indicates that gear shift-
ing is restrained (due to
low transmission fluid
temperature). Gear shifting is not pos-
sible while this message
is displayed. Warm up the vehicle by
driving it.
Indicates that the clutch
has temporarily over-
heated. Stop the vehicle in a safe
place and select Neutral.
Allow the clutch to cool
down by allowing the
vehicle to idle for
approximately 15 min-
utes.
MessageDetailsCorrection procedure

5
When trouble arises
331
5-2. Steps to take in an emergency
■To prevent the clutch from overheating
●Do not use the accelerator pedal to hold the vehicle on uphill inclines in an
attempt to prevent the vehicle from moving backward.
●On uphill inclines, observe the following whenever possible:
• Maintain a safe distance from the vehicle ahead and avoid frequent starts.
• Avoid using AUTO driving mode on uphill inclines. This will help to avoidunnecessary gear changes.
■If “Battery low Electric al equipment operation is limited” is displayed
The battery voltage is low. The operation of the air conditioning system, transmis-
sion pump and other power-consuming components may be temporarily limited
until the battery is recharged.