2003 Lexus IS300 Basic Functions / LEXUS 2003 IS300 OWNER'S MANUAL (OM53439U)

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236
3Shift into the º2º position. The transmission will downshift
to second gear when the vehicle speed is or becomes
lower than the speed listed below and stronger engine
braking than that of º3º position will be obtained.
4Shift into the ºLº position. The transmission will downshift
to first gear when the vehicle speed is or becomes lower
than the speed listed below and maximum engine braking
will be enabled.
º4º 177 km/h (110 mph)
º3º 123 km/h (76 mph)
º2º 81 km/h (51 mph)
ºLº 17 km/h (11 mph)
CAUTION
Be careful when downshifting on a slippery surface.
The abrupt change in engine speed could cause the
vehicle to spin or skid.
(d) Using the º3º, º2º and ºLº positions
The º3º, º2º and ºLº positions are used for strong eng\
ine
braking as described previously.
With the selector lever in º3º, º2º or ºLº, you can start t\
he vehicle
in motion as with the lever in ºDº.
With the selector lever in º3º or º2º, the vehicle will star\
t in the
first gear and automatically shift to third or second gear.
With the selector lever in ºLº, the transmission is engaged in
the first gear.
NOTICE
Be careful not to over±rev the engine. Watch the tachometer to keep engine rpm from going into thered zone. The approximate maximum allowablespeed for each position is given below for yourreference:
º3º 124 km/h (78 mph)
. . . . . . . . . . . . . . . . . . .
º2º 81 km/h (51 mph)
. . . . . . . . . . . . . . . . . . .
ºLº 52 km/h (33 mph)
. . . . . . . . . . . . . . . . . . .
Do not continue hill climbing or hard towing for a long
time in the º3º, º2º or ºLº position. This may causesevere automatic transmission damage from
overheating. To prevent such damage, º4º positionshould be used in hill climbing or hard towing.
2003 IS300 from Aug. '02 Prod. (OM53439U)

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(e) Backing up
SV31025

1Brake pedal 2ºRº (Reverse) position
1. Bring the vehicle to a complete stop.
2. With the brake pedal held down with your foot, shift the
selector lever to the ºRº position.
NOTICE
Never shift into reverse while the vehicle is moving.
(f) Parking
SV31026

1Brake pedal 2Parking brake lever
3ºPº (Park) position
1. Bring the vehicle to a complete stop.
2. Pull the parking brake lever up fully to securely apply the
parking brake.
3. With the brake pedal held down with your foot, shift the
selector lever to the ºPº position.
CAUTION
Never attempt to move the selector lever into ºPº under
any circumstances while the vehicle is moving. Serious
mechanical damage and loss of vehicle control may
result.
2003 IS300 from Aug. '02 Prod. (OM53439U)

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(g) Good driving practice
If the transmission repeatedly shifts up and down between the
fourth and overdrive gears when climbing a gentle slope, shift
the selector lever to the ºMº position and select the fourth gear
by pushing the transmission switch. Be sure to shift the
selector lever to the ºDº position after climbing the slope.
CAUTION
Always keep your foot on the brake pedal while stopped
with the engine running. This prevents the vehicle from
creeping.
NOTICE
Always use the brake pedal or the parking brake to hold
the vehicle on an upgrade. Do not attempt to hold the vehicle using the accelerator pedal, as this can causethe transmission to overheat.
(h) If you cannot shift the selector
If you cannot shift the selector lever even though the brake
pedal is depressed, use the shift lock override button. For
instructions, see ºIf you cannot shift automatic transmission
selector leverº on page 289.
(i) If the ºECT PWRº indicator light flashes
If the ºECT PWRº indicator light flashes, contact your Lexus
dealer as soon as possible. There may be trouble in the
transmission system.
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MANUAL TRANSMISSION
SV31034
The shift pattern is the conventional pattern shown above.
Press the clutch pedal down fully while shifting, and then
release it slowly. Do not rest your foot on the pedal while
driving, because it will cause clutch trouble. And do not use the
clutch to hold the vehicle when stopped on an uphill grade ±
use the parking brake.
Upshifting too soon or downshifting too late will cause lugging,
and possibly pinging. Regularly revving the engine to
maximum speed in each gear will cause excessive engine
wear and high fuel consumption.
Recommended shifting speeds
The transmission is fully synchronized and upshifting or
downshifting is easy.
For the best compromise between fuel economy and vehicle
performance, you should upshift or downshift at the following
speeds: gear km/h (mph)
1 to 2 or 2 to 1 24 (15)
2 to 3 or 3 to 2 40 (25)
3 to 4 or 4 to 3 64 (40)
4 to 5 or 5 to 4 72 (45)
Downshift to the appropriate gear if acceleration is needed
when you are cruising below the above downshifting speeds.
Upshifting too soon or downshifting too late will cause lugging,
and possibly pinging. Regularly revving the engine to
maximum speed in each gear will cause excessive engine
wear and high fuel consumption.
Maximum allowable speeds
To get on a highway or to pass slower traffic, maximum
acceleration may be necessary. Make sure you observe the
following maximum allowable speeds in each gear: gear km/h (mph)
1 56 (35)
2 98 (61)
3 145 (91)
NOTICE
Do not downshift if you are going faster than the maxi-
mum allowable speed for the next lower gear.
2003 IS300 from Aug. '02 Prod. (OM53439U)

STARTING AND DRIVING
240Good driving practice

If it is difficult to shift into reverse, put the transmission in
neutral, release the clutch pedal momentarily, and then try
again.
 When towing a trailer, in order to maintain engine braking
efficiency, do not use fifth gear.
CAUTION
Be careful when downshifting on a slippery surface.
Abrupt shifting could cause the vehicle to spin or skid.
NOTICE
Make sure the vehicle is completely stopped before
shifting into reverse.
ELECTRONIC CONTROLLED TRANSMISSION
(Vehicle with automatic transmission only)
SV31039

1Power position 2Normal position
The electronic controlled system has 2 modes: Normal
and Power modes.
Normal mode: For ordinary driving, Lexus recommends that
you use the normal mode to improve fuel economy.
Power mode: For more powerful acceleration and sporty
driving.
In the power mode, the ºECT PWRº light in the instrument
cluster is on and the transmission is shifted up at higher vehicle
speeds and shifted down more responsively than in the normal
mode.
2003 IS300 from Aug. '02 Prod. (OM53439U)

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CRUISE CONTROL
The cruise control allows you to cruise the vehicle at a
desired speed over 40 km/h (25 mph) with your foot off the
accelerator pedal.
Your cruising speed can be maintained although a slight speed
change may occur when driving up or down a gradient, within
the limits of engine performance. On steeper hills, a great
speed change will occur so it is better to drive without the cruise
control.
When the cruise control is on, the driving pattern of the
automatic transmission is fixed in the normal position,
regardless of the position of the selector switch.
CAUTION
 To help maintain maximum control of your vehicle,
do not use the cruise control when driving in heavy
or varying traffic, or on slippery (rainy, icy or
snow±covered) or winding roads.
 Avoid vehicle speed increases when driving
downhill. If the vehicle speed is too fast in relation to
the cruise control set speed, cancel the cruise
control then downshift the transmission to use
engine braking to slow down.
Turning on the system
SV31029
To operate the cruise control, push the main switch. This turns
the system on. The indicator light in the instrument cluster
shows that you can now set your desired cruising speed.
Another push on the switch will turn the system completely off.
When the ignition key is turned off, the main switch is also
automatically turned off. To use the cruise control again, push
the main switch again to turn it on.
CAUTION
To avoid accidental cruise control engagement, keep
the main switch off when not using the cruise control.
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Setting operation
SV31030

Each function is described below.
1Setting at a desired speed.
Automatic transmission: The transmission must be in the
ºDº position or the gear position must be º4º or º5º in M mode
before you set the cruise control speed.
Bring the vehicle to the desired speed, press the control lever
downward in the ºSET/COASTº direction and release it. This
sets the vehicle at that speed. Now you may take your foot off
the accelerator pedal. If you need acceleration ± for example,
when passing ± depress the accelerator pedal enough for the
vehicle to exceed the set speed. When you release the
accelerator pedal, the vehicle will return to the speed set prior
to the acceleration.
2Cancelling the preset speed
You can cancel the preset speed by either of the following:
a. Pulling the control lever in the ºCANCELº direction.
b. Depressing the brake pedal.
c. Depressing the clutch pedal (manual transmission)
If the vehicle speed falls below about 40 km/h (25 mph), the
preset speed will be automatically cancelled.
If the vehicle speed drops 16 km/h (10 mph) below the preset
speed, the preset speed will also automatically be cancelled.
If the preset speed automatically cancels out for other than
these reasons, have your vehicle checked by your Lexus
dealer at the earliest opportunity.
3Resetting to a faster speed
Press the control lever upward in the ºRES/ACCº direction and
hold it. Release the lever when the desired speed is attained.
While the lever is held upward, the vehicle will gradually gain
speed.
When the difference between the actual vehicle speed and the
set speed is less than 5 km/h (3 mph), the set speed can be
increased 1.6 km/h (1 mph) each time by pressing the control
lever upward in the ºRES/ACCº direction quickly within 0.6
seconds.
However, a quicker way to reset is to accelerate the vehicle
and then press the control lever downward in the
ºSET/COASTº direction.
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4Resetting to a slower speed
Press the control lever downward in the ºSET/COASTº
direction and hold it. Release the lever when the desired
speed is attained. While the lever is held downward, the
vehicle speed will gradually decrease.
When the difference between the actual vehicle speed and the
set speed is less than 5 km/h (3 mph), the set speed can be
lowered 1.6 km/h (1 mph) each time by pressing the control
lever downward in the ºSET/COASTº direction quickly within
0.6 seconds.
However, a quicker way to reset is to depress the brake pedal
and then press the control lever downward in the
ºSET/COASTº direction.
Automatic transmission: Even if you downshift the
transmission from the ºDº position to ºMº with the cruise control
on, engine braking will not be applied because the cruise
control is not cancelled. To decrease the vehicle speed, reset
to a slower speed with the cruise control lever or depress the
brake pedal. If you use the brake pedal, cruise control is
cancelled.
5Resuming the preset speed
If the preset speed is cancelled by pulling the control lever or
by depressing the brake pedal, pushing the lever up in the
ºRES/ACCº direction will restore the speed set prior to
cancellation. However, once the vehicle speed falls below
about 40 km/h (25 mph), the preset speed will not be resumed.
Cruise control failure warning
If the ºCRUISEº indicator light in the instrument cluster flashes
five times and then goes out when using the cruise control, it
means that there is trouble in the cruise control system.
Contact your Lexus dealer.
2003 IS300 from Aug. '02 Prod. (OM53439U)