odometer lexus LFA 2012 Technical Information / LEXUS 2012 LFA: INSIDE THE LFA

16
Engine protection mechanisms
The LFA’s 1LR-GUE engine generates a maximum output of 412 kW (553 HP) at
8,700 rpm and delivers 90% or more of its peak torque of 354 ft•lbf (480 N•m,
48.9 kgf•m) between 3,700 and 9,000 rpm. The engine features a number of
protection mechanisms to ensure longevity and maintain peak performance.
A number of driving restrictions will be in place until the total mileage shown on the
odometer exceeds 310 miles (500 km). This break-in period serves not only to
protect the engine, but also to preserve the transmission, suspension and the vehicle
as a whole. It is recommended that during this time the owner become familiar with
the LFA and avoid high-load driving maneuvers.
One engine protection mechanism in place beyond the break-in period is the limiting
of maximum engine speed when the engine is cold. When the vehicle is cold started,
various components within the engine begin to warm up and expand at different rates.
Forcing the engine to operate at high speeds in this condition can cause accelerated
engine wear. For this reason, the maximum engine speed is limited when manually
shifted driving modes (SPORT, NORMAL, WET) are selected and restricted to a set
range when AUTO mode is selected.
This engine speed limitation does not indicate a malfunction with the vehicle. Warming
the engine up by driving, rather than extended idling, is recommended.

17
Engine protection mechanisms
■
■Limited maximum engine speed during break-in
period
The maximum engine speed is limited to 7,400 rpm if the total mileage shown on the
odometer is less than 310 miles (500 km).
■
■Engine starting restrictions in extremely low
temperatures
In extremely low temperatures, such as when the coolant or oil temperature gauge
shows a reading of -13°F (-25°C) or below, the engine will not be allowed to start.
This mechanism is designed to protect the engine.
■
■Restricted maximum engine speed in extremely
low temperatures
When the engine is started with the coolant temperature gauge showing a reading
of 5°F (-15°C) or below, the maximum engine speed will be limited to 4,400 rpm for
approximately eight minutes.
■
■Variable maximum engine speed during warm-
up
When the engine is started with the coolant temperature gauge showing a reading
of 176°F (80°C) or below, the maximum engine speed will vary according to the
coolant temperature.
■
■Limited maximum engine speed in neutral gear
The maximum engine speed will be limited to 5,100 rpm when neutral gear is selected
and the accelerator pedal is continuously depressed.

67
Using the meter
■
■Menu structure
Speed Ind The color will change and a buzzer will sound when
the vehicle reaches a set speed.
Rev Ind The color will change and a buzzer will sound when
the engine speed reaches a set speed.
Status Trip Info
Indicates the instantaneous fuel consumption, average
vehicle speed, average fuel consumption, and driving
range.
Oil Level Shows the amount of engine oil in the oil tank.
Oil
Maintenance Indicates engine oil replacement timing. (Be sure to
reset after replacing the oil.)
Tire Pressure Shows inflation pressure of each tire.
Lap Timer Measures and shows lap times.
Brightness Allows driver to adjust the brightness of the meter and
interior illumination.
Settings Needle
Allows driver to change the color of the tachometer
needle.
Rev Peak Retains an image of the tachometer needle at the
highest engine speed attained prior to an upshift or
deceleration.
Clock Allows driver to adjust the displayed time and choose
between 12-hour (12H) and 24-hour (24H) mode.
Shortcut Allows driver to jump to a preset display.
Units Changes units of the displayed speed, odometer
readings and fuel consumption between MPG,
L/100 km and km/l.
Temp Changes the display temperature between Celsius
and Fahrenheit.
Language Changes the language displayed.
When a warning is displayed on the meter, the “Menu” text at the top of the menu
screen will change to “Warning”.