2002 Acura RL climate control

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The air f low f rom the rear vents can
be adjusted when the climate control
system is on. (Upper position):
Air flows from the upper vents in the
back of the center console.
(Lower position):
Air f lows f rom the lower vents.
(Upper position): Maximum
(Center position): Moderate
(Lower position): Of f (Center position):
Air f low is divided between the upper
vents and the lower vents in the back
of the center console.
You can adjust the direction of the
air coming f rom the upper vents in
the center console by moving the tab
in the center of each vent up-and-
down and side-to-side.
You can also adjust the amount of
the air f low by sliding the air f low
control lever under the upper vents.
Slide this lever upward to increase
the amount of air f low.
Use the mode control lever to select
the air f low level. Air f lows into the
rear seat at three levels.
Rear Ventilation
Mode Cont rol L ever
Climat e Cont rol Syst em
Comf ort and Convenience Feat ures126
M M
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C
CO ON NTTR
RO OL L
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V E
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LO OW WE ER
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V
V E
EN
NT TS
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A
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IRR F
FLLOOW W
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CO ON NTTR
RO OL L
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01/09/28 19:45:14 31SZ3660_129

Theclimatecontrolsystemhastwo
sensors. A sunlight sensor is located
in the top of the dashboard and a
temperature sensor is next to the
steering column. Do not cover the
sensors or spill any liquid on them. Sunlight Sensor/T emperature
Sensor
Climat e Cont rol Syst em
Comf ort and Convenience Feat ures127
S SUUN NLLIIGGH HT
T S
SEEN
NS SOOR R T
T
E
EM
M P
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ER
RA A T
TU
UR REE S
SEEN
NS SOOR R
01/09/28 19:45:21 31SZ3660_130

A cold engine uses more f uel than a
warm engine. It is not necessary to
‘‘warm-up’’ a cold engine by letting it
idle f or a long time. You can drive
away in about a minute, no matter
how cold it is outside. The engine
will warm up f aster, and you get
better f uel economy. To cut down on
the number of ‘‘cold starts,’’ try to
combine several short trips into one.
You can improve f uel economy by
driving moderately. Rapid acceler-
ation, abrupt cornering, and hard
braking use more f uel.
Always drive in the highest gear that
allows the engine to run and acceler-
ate smoothly.
An important part of that mainte-
nance is the (see page ). For
example, an underinf lated tire
causes more ‘‘rolling resistance,’’
which uses f uel. It also wears out
f aster, so check the tire pressure at
least monthly. The air conditioning puts an extra
load on the engine which makes it
usemorefuel.Turnoff theA/Cor
set the climate control to a higher
temperature to cut down on air
conditioning use. Use the flow-
through ventilation when the outside
air temperature is moderate.
The condition of your car and your
driving habits are the two most
important things that affect the fuel
mileage you get.
Always maintain your car according
to the maintenance schedule. This
will keep it in top operating condition.
In winter, the build-up of snow on
your car’s underside adds weight and
rolling resistance. Frequent cleaning
helps your f uel mileage and reduces
thechanceof corrosion.
Depending on traf f ic conditions, try
to maintain a constant speed. Every
time you slow down and speed up,
your car uses extra f uel. Use the
cruise control, when appropriate, to
increase f uel economy.
225 Driving Habits
Owner Maintenance
Checks Car Condition
Fuel Economy
Bef ore Driving183
01/09/28 19:55:34 31SZ3660_186

Loosen the drain plug on the
bottom of the radiator. The
coolant will come out through the
hole in the splash cover.
Turn the ignition ON (II). Turn
the heater temperature control
dial to maximum heat (climate
control to 90°F/32°C). Turn of f
the ignition. Open the hood. Make
sure the engine and radiator are
cool to the touch.
Remove the radiator cap.
Thecoolingsystemshouldbe
completely drained and ref illed with
new coolant according to the time
and distance recommendations in
the maintenance schedule. Only use
Honda All Season Antif reeze/
Coolant Type 2. Use of any non-
Honda coolant or plain water can
result in corrosion and deposits in
the cooling system.
Draining the coolant requires access
to the underside of the car. Unless
you have the tools and knowledge,
you should have this maintenance
done by a skilled mechanic.
1.
2.3.
CONT INUED
Replacing Engine Coolant
Cooling Syst em
Maint enance233
D D
R
RAA I
INN P
PL
LUUG G
01/09/28 20:03:32 31SZ3660_236

Make sure the climate control sys-
tem is off.
Start the engine and let it run until
it warms up (the radiator cooling
fan comes on at least twice), and
let it idle f or f ive more minutes.
If your car’s battery is disconnected
or goes dead, the engine’s computer
needs to ‘‘relearn’’ the idle control.
Af ter replacing or recharging the
battery:
Your driver’s power window (see
page ) and your audio system
will also disable itself when the bat-
tery is disconnected or goes dead.
Thenexttimeyouturnontheradio
you will see ‘‘Code’’ in the f requency
display. Use the Preset buttons to en-
ter the f ive-digit code (see page ).
1.
2. 104
156
Battery
Maint enance248
Charging the battery with the cables
connected can seriously damage your
car’s electronic controls. Detach the
battery cables bef ore connecting the
battery to a charger.
01/09/28 20:06:01 31SZ3660_251

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The belts should have the f ollowing
‘‘play’’ or def lection.
Alternator belt:
Check the condition of the three
drive belts. Examine the edges of
each belt f or cracks or f raying.
This f ilter should be replaced every
30,000 miles (48,000 km) under nor-
mal conditions. It should be replaced
every 15,000 miles (24,000 km) if you
drive primarily in urban areas that
have high concentrations of soot in
the air f rom industry and diesel-pow-
ered vehicles. Replace it more of ten
if air f low f rom the climate control
system becomes less than usual.
Have dust and pollen f ilter replaced
by your Acura dealer.
Check the tension of each belt by
pushingonitwithyourthumb
midway between the pulleys.If you see signs of wear or looseness,
have your dealer adjust or replace
the belts. Power steering belt: Compressor belt:
The dust and pollen f ilter removes
pollen and dust that is brought in
f rom the outside through the climate
control system. A ir Conditioning Filter Drive Belts
A ir Conditioning Filter, Drive Belts
Maint enance252
P P
O
OW WE ER
R S
STTE
EE
ER
RI INNG G
B
BE EL
LTT A
A
L
LTT E
ER
RN NA AT
TO
OR R B
BEEL
LTT
C
CO OM M P
PR
RE ES
SS SOOR R B
BEEL
LTT
0.37 0.45 in (9.5 11.5 mm)
0.41 0.49 in (10.5 12.5 mm) 0.31 0.43 in (8.0 11.0 mm)
01/09/28 20:06:39 31SZ3660_255

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´
´ Connect the second jumper cable
to the negative ( ) terminal on
the booster battery. Connect the
other end to the ground wire on
the right side of the engine as
shown. Do not connect this jumper
cable to any other part of the
engine.
If the booster battery is in another
vehicle, have an assistant start
that vehicle and run it at a fast idle.
Connect one jumper cable to the
positive ( ) terminal on your
Acura’s battery. Connect the other
end to the positive ( ) terminal
on the booster battery.
Turn of f all the electrical acces-
sories: climate control, stereo
system, lights, etc.
Put the transmission in Neutral or
Park, and set the parking brake.
5. 4.
3.
2.
CONT INUED
T aking Care of t he Unexpect ed
Jump Starting
291
If a battery sits in extreme cold, the
electrolyte inside can f reeze.
Attempting to jump start with a f rozen
battery can cause it to rupture.
01/09/28 20:12:56 31SZ3660_294

If you see steam and/or spray
coming f rom under the hood, turn
of f the engine.
If you do not see steam or spray,
leave the engine running and
watch the temperature gauge. If
the high heat is due to overloading
(climbing a long, steep hill on a
hot day with the A/C running, f or
example), the engine should start
to cool down almost immediately.
If it does, wait until the tempera-
ture gauge comes down to the mid-
point then continue driving. Saf ely pull to the side of the road.
Put the transmission in Neutral or
Park and set the parking brake.
Turn of f the climate control and all
other accessories. Turn on the
hazard warning indicators.
The pointer of your car’s tempera-
ture gauge should stay in the mid-
range under most conditions. It may
go higher if you are driving up a long
steep hill on a very hot day. If it
climbs to the red mark, you should
determine the reason. Your car can overheat f or several
reasons, such as lack of coolant or a
mechanical problem. The only
indication may be the temperature
gauge climbing to or above the red
mark. Or you may see steam or
spray coming f rom under the hood.
In either case, you should take
immediate action.1.
2.
3.
CONT INUED
If Your Engine Overheats
T aking Care of t he Unexpect ed293
Steam and spray from an
overheated engine can
seriously scald you.
Do not open the hood if steam
is coming out.
Driving with the temperature gauge
pointer at the red mark can cause
serious damage to your engine.
01/09/28 20:13:13 31SZ3660_296