service reset Lexus GX470 2003 Electrical Components / LEXUS 2003 GX470 OWNER'S MANUAL (OM60979U)

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TACHOMETER
The tachometer indicates engine speed in thousands of
rpm (revolutions per minute). Use it while driving to
prevent engine overrevving.
Driving with the engine running too fast causes excessive
engine wear and poor fuel economy. Remember, in most
cases the slower the engine speed, the greater the fuel
economy.
It is not a malfunction even if the needle of the tachometer
returns to the bottom position when the ignition switch is turned
to the “START” position.
NOTICE
Do not let the indicator needle get into the red zone. This
may cause severe engine damage.
ODOMETER AND TRIP METER
 Trip meter reset knob
This meter displays the odometer and two trip meters. To
change the mode indication, push the trip meter reset
knob briefly. Each time you push the knob, the mode
changes in order from the odometer to trip meter A to trip
meter B, then back to the odometer, etc.
The odometer records the total distance the vehicle has
been driven. The twin trip meter records two different
distances independently.
For example, you can use one meter to calculate the fuel
economy and the other to measure the distance on each trip.
To set the A trip meter to zero, display the A meter reading,
push the knob and hold it. The same applies for the B trip
meter.
The data of trip meters will be cancelled if the electrical power
source is disconnected.

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The light may occasionally flicker when the engine is idling or
it may come on briefly after a hard stop. There is no cause for
concern if it then goes out when the engine is accelerated
slightly.
The light may come on when the oil level is extremely low. It
is not designed to indicate low oil level, and the oil level must
be checked using the oil level dipstick.
NOTICE
Do not drive the vehicle with the warning light on even
for one block. It may ruin the engine.
(m) Engine Oil Replacement Reminder Light
This light reminds you when to replace the engine oil.
This light will come on when the ignition key is turned to “ON”
and will go off after about a few seconds.
When you drive for about 8000 km (5000 miles) after the
engine oil replacement, this light illuminates for about 3
seconds and then flashes for about 12 seconds with the
ignition key turned to “ON” position. If you continue driving
without the engine oil replacement, and if the driving range
exceeds
12000 km (7500 miles), the light will come on after the
ignition key is turned to “ON” position. The light will remain on
thereafter.
If the light is flashing, we recommend that you replace the
engine oil at an early opportunity depending on the driving and
road condition. If the light comes on, replace it as soon as
possible. You need to reset the light after the engine oil replacement.
Reset the light by following the procedure below:
1. Turn the ignition key to the “OFF” position with the odometer
reading
shown. (For details, see “Odometer and trip meter” on
page 42.)
2. Turn the ignition key to the “ON” position while holding down
the trip meter reset knob.
Hold down the knob until the light goes off. Before the light
goes off, it illuminates for 3 seconds, flashes for 2 seconds and
illuminates for 1 second.
If the system fails to reset, the light will remain flashing. In this
case, return to step 1 and try again.
(n) Low Fuel Level Warning Light
This light comes on when the fuel level in the tank becomes
very low. Fill the tank as soon as possible.
On inclines or curves, due to the movement of fuel in the tank,
the low fuel level warning light may come on earlier than usual.
(o) Low Washer Fluid Warning Light
This light comes on when the fluid level in the tank becomes
very low. Fill the tank as soon as possible.
(p) Key Reminder Buzzer
This buzzer reminds you to remove the key when you open the
driver’s door with the ignition key in the “ACC” or “LOCK”
position.

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The following service reminder indicator should come on. It
goes off after about 6 seconds.
If any service reminder indicator or warning buzzer does not
function as described above, have it checked by your Lexus
dealer as soon as possible.
MULTIINFORMATION DISPLAY
13PY018

1 “MODE” button 2 “” button

3 “” button 4 “RESET” button

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Clock
The digital clock indicates the time when the key is in the
“ACC” or “ON” position.
To reset the time, push and hold the “MODE” button for 2
seconds. “ILL” will appear on the display. Then push the
“MODE” button once. The time will blink.
To reset the hour − Push the “
” button.
To reset the minutes − Push the “
” button.
To adjust the time to the nearest hour, push the “RESET”
button. For example, if the “RESET” button is depressed when
the time is between 1:01 − 1:29, the time will change to 1:00.
If the time is between 1:30 − 1:59, the time will change to 2:00.
If the electric power source has been disconnected, the time
display will automatically be set to 1:00.
Outside temperature and cruise information
The following information is shown with the ignition
switch turned on. Each time you push the “MODE” button,
the display toggles through this information.
 Outside temperature mode
 Average fuel consumption mode
 Instantaneous fuel consumption mode
 Driving range mode
 Average vehicle speed mode
 Barometer mode
 Altimeter mode
 Elapsed time mode
The displayed values indicate general driving conditions.
Accuracy varies with driving habits and road conditions.

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Outside temperature mode
In outside temperature mode, outside air temperatures
are displayed.
The displayed value is updated every 1 second.
The displayed temperature ranges from −22F (− 30C) up to
122 F (50C).
If there is some abnormality in the connection of the outside air
temperature sensor, “ −−” will appear on the display. If “ −−”
appears on the display, contact your Lexus dealer.
In some cases, “ −−” may appear momentarily when the ignition
is quickly turned to “ON”. It is normal if it goes out soon. 
Average fuel consumption modeAverage fuel consumption is calculated and displayed
based on total driving distance and total fuel consumption
with the engine running.
The displayed value is updated every 10 seconds.
To reset the calculations, push and hold the “RESET” button for
more than 1 second.

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Instantaneous fuel consumption mode
Instantaneous fuel consumption is calculated and
displayed based on distance and fuel consumption for 2
seconds with the engine running.
The displayed value is updated every 2 seconds.
Note that an accurate figure may not be shown in the following
cases.
 When the vehicle is stopped with the engine running, the
display will indicate extremely high fuel consumption.
 When the vehicle is driving down a long slope, with the
engine brake applied, the display will indicate extremely low
fuel consumption.
To reset the calculations, push and hold the “RESET” button for
more than 1 second. 
Driving range modeThe distance the vehicle can travel with the remaining fuel
is calculated and displayed based on the quantity of
remaining fuel and past fuel consumption.
The driving range display indicates the approximate distance
that you can drive until the fuel gauge reaches “E”. It is dif ferent
from the actual distance traveled.
The displayed value is updated every time the fuel required to
travel 0.6 miles (1 km) is consumed.
Every time you refuel the vehicle, the calculation is reset.
The actual driving range varies with driving habits and road
conditions. If fuel consumption is good, the driving range will
be longer. If fuel consumption is poor, the driving range will be
shorter.
If the low fuel level warning light comes on, refuel even if the
display indicates that the vehicle can be driven further.

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Average vehicle speed mode
Average vehicle speed is calculated and displayed based
on total driving distance and total driving time with the
engine running.
The displayed value is updated every 10 seconds.
To reset the calculations, push and hold the “RESET” button for
more than 1 second. 
Barometer modeIn barometer mode, the atmospheric pressure in the
vehicle is displayed.
The displayed atmospheric pressure ranges from 17.8 IN.HG
(600 hPa) up to 31.0 IN.HG (1050 hPa).
The displayed value is updated every 2 seconds.
The displayed value may deviate from the actual atmospheric
pressure depending on opening or closing of the windows and
doors and the driving conditions.

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Altimeter mode
In altimeter mode, the approximate altitude is displayed.
The displayed altitude ranges from −1500 ft. (−500 m) up to
13000 ft. (4000 m).
As the altitude value is converted from the atmospheric
pressure, it can be easily affected by air motion and
temperature, so the indication may vary. The indicated altitude
of a single position may deviate according to the atmospheric
pressure and temperature.
The displayed value is updated every 2 seconds.
RECTIFICATION OF THE ALTITUDE
Rectification is valid only when the correct altitude is known.
While the altitude mode is on the display, push the “
” or “”
button to increase or decrease the altitude by 50 ft. (10 m).
To reset the rectified altitude, push and hold the “RESET”
button for more than 1 second. 
Elapsed time mode
The time that has elapsed since the engine started is
displayed.
When the engine is started, driving time is counted from 0:00.
Up to 19:59 (19 hours, 59 minutes) can be displayed. When
the driving time exceeds 19:59, the counter returns to 0:00.
To reset the calculations, push and hold the “RESET” button for
more than 1 second.