Page 155 of 255

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The transmission may automatically
downshif t f rom the higher gear to
the lower gear under the f ollowing
conditions:
The vehicle speeds drops below5 4:33mph(52km/h)
4 3:20mph(32km/h)
If you drive uphill between 54:4533mph
(72 52 km/h)
43:3320mph
(52 32 km/h)
If you press the brake pedal as you
drive downhill. Downshif ting gives you more power
when climbing or provides engine
braking when going down a steep hill.
The transmission will also shif t
automatically as the vehicle comes to
a complete stop. It will downshif t to
f irst gear when the vehicle speed is
under 6 mph (10 km/h).
If you try to manually downshif t at a
speed that would cause the engine to
exceed the redline in a lower gear,
the transmission will not downshif t.
Thegearindicatorwillflashthe
numberof thelowergearseveral
times, then return to the higher gear. If the vehicle speed slows to below
the redline of the selected lower gear
position while the indicator is
f lashing, the transmission will
downshif t and the display will show
the selected lower gear.
The table shows the speed ranges
f or upshif ting and downshif ting.
To shift from 12
23
34
45 Speed range
over 0 mph (0 km/h)
over 6 mph (10 km/h)
over 20 mph (32 km/h)
over 33 mph (52 km/h)
Automatic Transmission
154
Page 156 of 255
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To shift from
21
32
43
54 Speed range
under 31 mph (50 km/h)
under 63 mph (100 km/h)
under 94 mph (150 km/h)
under 131 mph (210 km/h) When you are in Sequential
SportShif t mode, and the vehicle is
stopped, push f orward on the shif t
lever to shif t to second gear. You will
see ‘‘2’’ in the display. Starting out in
second gear will help to reduce
wheelspin in deep snow or on a
slippery surf ace.
If you exceed the maximum speed
f or the gear you are in, the engine
speed will enter into the
tachometer’s red zone. If this
occurs,youmayfeeltheengine
cut in and out. This is caused by a
limiter in the engine’s computer
controls. The engine will run
normally when you reduce the
rpm below the red zone.
Automatic Transmission
Starting in Second Gear
Engine Speed L imiter
Driving
155
Page 175 of 255

Make sure the API Certif ication Seal
says ‘‘For Gasoline Engines.’’
The oil’s viscosity or weight is
provided on the container’s label.
5W-20 oil is f ormulated f or year-
round protection of your vehicle, to
improve cold weather starting and
f uel economy.
Unscrew and remove the engine oil
fill cap on the valve cover. Pour in
the oil slowly and caref ully so you do
not spill any. Clean up any spills
immediately. Spilled oil could
damage components in the engine
compartment.
Reinstall the engine oil f ill cap, and
tighten it securely. Wait a f ew
minutes, and recheck the oil level on
the engine oil dipstick. Do not f ill
above the upper mark; you could
damage the engine. Oil is major contributor to your
engine’s perf ormance and longevity.
Always use a premium-grade
detergent oil displaying the API
Certif ication Seal. This seal indicates
the oil is energy conserving, and that
it meets the American Petroleum
Institute’s latest requirements. It is
highly recommended that you use
Acura Precision Craf ted motor oil in
your vehicle.
RSX and Premium models
A dding Engine Oil
Recommended Oil
174
ENGINE OIL FILL CAP
API CERTIFICATION SEAL Ambient Temperature
Page 176 of 255

µAlways change the oil and f ilter
according to the recommendations in
the maintenance schedule. The oil
and f ilter collect contaminants that
can damage your engine if they are
not removed regularly.
Changing the oil and f ilter requires
special tools and access f rom
underneath the vehicle. The vehicle
should be raised on a service station-
type hydraulic lif t f or this service.
Unless you have the knowledge and
proper equipment, you should have
this maintenance done by a skilled
mechanic.
Run the engine until it reaches
normal operating temperature,
then shut it off.
You may use a synthetic motor oil if
it meets the same requirements
given f or a conventional motor oil: it
displays the API Certif ication Seal
and it is the proper weight. You must
f ollow the oil and f ilter change
intervals given in the maintenance
schedule.
An oil with a viscosity of 5W-30 is
pref erred f or improved f uel economy
and year-round protection in your
vehicle. You may use a 10W-30 oil if
the temperature in your area never
goes below 20°F ( 7°C). Your vehicle does not require any oil
additives. Additives may adversely
af f ect the engine or transmission
perf ormance and durability.
1.
CONT INUED
Type-SSynthetic Oil
Engine Oil A dditivesChanging the Oil and Filter
A dding Engine Oil, Changing the Oil and Filter
Maint enance
175
Ambient Temperature
Page 201 of 255

µ
Check the condition of the battery
monthlybylookingatthetest
indicator window. The label on the
battery explains the test indicator’s
colors.
Check the terminals f or corrosion (a
white or yellowish powder). To
remove it, cover the terminals with a
solution of baking soda and water. It
will bubble up and turn brown. When
this stops, wash it of f with plain
water. Dry off the battery with a
cloth or paper towel. Coat the terminals with grease to help prevent
f urther corrosion.
If additional battery maintenance is
needed, see your dealer or a
qualif ied technician.
Battery posts,
terminals, and related accessories
contain lead and lead compounds.
If your vehicle’s battery is
disconnected or goes dead, your
driver’s power window loses its
calibration and must be
reprogrammed (see page ), and
your audio system will disable itself .
Thenexttimeyouturnontheradio
youwillsee‘‘ ’’inthe
f requency display. Use the Preset
buttons to enter the five-digit code
(see page ). If you need to connect the battery to
a charger, disconnect both cables to
prevent damaging your vehicle’s
electrical system. Always disconnect
the negative ( ) cable first, and
reconnect it last.
78
125
Checking the Battery
WARNING:
Wash your hands af ter handling.
200
TEST INDICATOR WINDOW
The battery gives off explosive
hydrogen gas during normal
operation.
A spark or flame can cause the
battery to explode with enough
force to kill or seriously hurt you.
Wear protective clothing and a
face shield, or have a skilled
mechanic do the battery
maintenance.
Page 218 of 255

If the indicator comes on
while driving, it means one
of the engine’s emissions control
systems may have a problem. Even
though you may f eel no dif f erence in
your vehicle’s perf ormance, it can
reduce your f uel economy and cause
increased emissions. Continued
operation may cause serious damage. If the indicator comes on repeatedly,
even though it may turn of f as you
continue driving, have the vehicle
checked by your dealer as soon as
possible.
Your vehicle has certain ‘‘readiness
codes’’ that are part of the on-board
diagnostics f or the emissions
systems. In some states, part of the
emissions testing is to make sure
these codes are set. If they are not
set, the test cannot be completed.If the battery in your vehicle has
been disconnected or gone dead,
these codes are erased. It takes at
least three days of driving under
various conditions to set the codes
again.
To check if they are set, turn the
ignition to the ON (II) position,
without starting the engine. The
malf unction indicator lamp will come
on f or 20 seconds. If it then goes of f ,
the readiness codes are set. If it
blinks five times, the readiness
codes are not set. If possible, do not
take your vehicle for a state
emissions test until the readiness
codes are set. Ref er to
for more
inf ormation (see page ).
If you have recently ref ueled your
vehicle, the indicator could come on
because of a loose or missing f uel f ill
cap. You will also see a ‘‘CHECK
FUEL CAP’’ message on the
odometer display. Tighten the cap
until it clicks at least once.
Tightening the cap will not turn the
indicator turn of f immediately; it
takes at least three days of normal
driving.
238
Readiness Codes
State
Emissions T esting
Malf unction Indicator L amp
T aking Care of t he Unexpect ed
217
If you keep driving with the
malf unction indicator lamp on, you can
damage your vehicle’s emissions
controls and engine. Those repairs may
not be covered by your vehicle’s
warranties.
Page 223 of 255

If the replacement fuse of the
same rating blows in a short time,
there is probably a serious
electrical problem with your
vehicle. Leave the blown fuse in
that circuit, and have your vehicle
checked by a qualif ied mechanic.If the driver’s power window f use is
removed, the AUTO function of the
driver’s window will be disabled. To
reset the AUTO f unction, see page
.
If the radio f use is removed, the
audio system will disable itself . The
nexttimeyouturnontheradioyou
will see ‘‘Code’’ in the f requency
display. Use the preset buttons to
enter the f ive-digit code (see page ).
If you cannot drive the vehicle
without f ixing the problem, and you
do not have a spare fuse, take a fuse
of the same rating or a lower rating
f rom one of the other circuits. Make
sureyoucandowithoutthatcircuit
temporarily (such as the accessory
power socket or radio).
If you replace the blown f use with a
spare f use that has a lower rating, it
might blow out again. This does not
indicate anything wrong. Replace the
f use with one of the correct rating as
soon as you can.
6. 78
125
Fuses
222
Replacing a f use with one that has a
higher rating greatly increases the
chances of damaging the electrical
system. If you do not have a
replacement f use with the proper rating
f or the circuit, install one with a lower
rating.