2003 HONDA CR-V ECU

Remember that your CR-V has
higher ground clearance and a
higher center of gravity than
passenger vehicles designed f or use
only on pavement. This means your
vehicle can more easily tip or roll
over if you make abrupt turns or
drive on slopes.
Utility vehicles have a signif icantly
higher rollover rate than other types
of vehicles. To avoid loss of control
or rollover, be sure to f ollow all
recommendations and precautions
on page and in this section.
Seat belts are just as important of f -
road as on paved roads. Wherever
you drive, make sure you and your
passengers always wear seat belts. If
children or inf ants are along f or the
ride, see that they are properly
secured. In a rollover crash, an
unbelted person is more likely to die
than a person wearing a seat belt.On many unpaved roads, you won’t
f ind lane markers, traf f ic signals, or
signs to warn you of possible trouble
ahead. It’s up to you to continually
assess the situation and drive within
limits.The route presents limits (some
roads are too steep and bumpy f or
example). You have limits (in driving
skills and comf ort). And your vehicle
also has limits (traction, stability, and
power, f or instance).
Driving of f -highway can be
hazardous if you f ail to recognize
limits and take proper precautions.
For example, you can have an
accident or rollover during
maneuvers such as turning, driving
on hills, or over large obstacles.
Be sure to store cargo properly, and
do not exceed your CR-V’s cargo or
trailer load limits (see pages and
). 194
198
217
Important Saf ety Precautions
Off-Highway Guidelines
Driving227
Improperly operating this
vehicle on or off-pavement can
cause an accident or rollover in
which you and your passengers
could be seriously injured or
killed.
Follow all instructions and
guidelines in the owner’s
manual.
Keep your speed low and
don’t drive faster than
conditions permit.

To add oil, unscrew and remove the
engine oil f ill cap on top of the valve
cover. Pour in the oil, and install the
engine oil f ill cap. Tighten it securely.
Wait a f ew minutes and recheck the
oil level. Do not f ill above the upper
mark; you could damage the engine.Make sure the API Certif ication Seal
says ‘‘For Gasoline Engines.’’
Oil is a major contributor to your
engine’s perf ormance and longevity.
Always use a premium-grade 5W-20
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.
Pour the oil slowly and caref ully so
you do not spill. Clean up any spills
immediately. Spilled oil could
damage components in the engine
compartment. Honda Motor Oil is the pref erred
5W-20 lubricant f or your vehicle. It is
highly recommended that you use
Honda Motor Oil in your vehicle f or
optimum engine protection.
CONT INUED
Recommended Oil
A dding Oil
Engine Oil
Maint enance247
ENGINE OIL FILL CAP
API CERTIFICATION SEAL

Remove the coolant tube f rom the
radiator.
Put the end of the coolant tube
lower than the coolant reserve
tank and drain the coolant into an
appropriate container.Put the reserve tank back in place,
making sure its bottom tab is in
the holder. Reinstall and tighten
the mounting bolt securely.
Reinstall the cover. Lock the
holding clips by pushing on the
center of the clip. Reinstall the bolt
in the battery hold-down.
When the coolant stops draining,
tightenthedrainplugatthe
bottom of the radiator.
Put the cover back in place and
tighten the bolts securely.
Reinstall the 16 holding clips. Lock
each clip in place by pushing on its
center.
Pour Honda All Season
Antif reeze/Coolant Type 2 into
the radiator up to the base of the
f iller neck. This coolant is a
mixture of 50 percent antif reeze
and 50 percent water. Pre-mixing
is not required.
Put the coolant tube back in the
clips and reinstall the coolant tube
to the radiator securely.
12.
13.
9.
10. 11.
14.
15. 16.
Cooling Syst em
Maint enance256
FILLER NECK
Fill up to here

Insert the dipstick all the way back
into the transmission securely as
shown in the illustration.
The transmission should be drained
and ref illed with new f luid according
to the time and distance recommen-
dations in the maintenance schedule.
Check the f luid level with the
transmission at normal operating
temperature and the vehicle sitting
on level ground. Remove the
transmission f iller bolt and caref ully
f eel inside the bolt hole with your
f inger. The f luid level should be up
to the edge of the bolt hole. If it is
not, add Honda Manual
Transmission Fluid (MTF) until it
starts to run out of the hole.Put a new washer on the f iller bolt,
then reinstall the f iller bolt and
tighten it securely.
If Honda MTF is not available, you
may use an SAE 10W-30 or 10W-40
viscosity motor oil with the API
Certif ication seal that says ‘‘FOR
GASOLINE ENGINES’’ as a
temporary replacement. However,
motor oil does not contain the proper
additives and continued use can
cause stif f er shif ting. Replace as
soon as it is convenient.
The transmission should be drained
and ref illed with new f luid according
to the time and distance recommen-
dations in the maintenance schedule.
6.
5-speed Manual Transmission
T ransmission Fluid
Maint enance261
WASHERFILLER BOLT
Correct level

Put a new washer on the f iller bolt,
then reinstall the f iller bolt and
tighten it securely.
Only use Honda Dual Pump Fluid.
Do not use Automatic Transmission
Fluid (ATF).
The rear dif f erential should be
drained and ref illed with new f luid
accordingtothetimeanddistance
recommendations in the mainte-
nance schedule.
Check the f luid level with the rear
dif f erential at normal operating
temperature and the vehicle sitting
on level ground. Remove the
dif f erential f luid f iller bolt and
washer and caref ully f eel inside the
bolt hole with your f inger. The f luid
level should be up to the edge of the
bolt hole. If it is not, slowly add
Honda Dual Pump Fluid until it
starts to run out of the hole.
Rear Dif f erential Fluid
Maint enance
4WD models only
262
Correct
level FILLER BOLT WASHER

Unclip the end of the hold-down
wire f rom its slot. Pivot it out of
the way and remove the bulb.
Insert the new bulb into the hole,
making sure the tabs are in their
slots. Pivot the hold-down wire
back in place and clip the end into
the slot.
Install the rubber seal over the
back of the headlight assembly.
Make sure it is right side up; it is
marked ‘‘TOP.’’
Push the electrical connector onto
the new bulb. Make sure it is
connected securely.
Turn on the headlights to test the
new bulb.Remove the socket f rom the
headlight assembly by turning it
one-quarter turn counterclockwise. Open the hood. The f ront side
marker/turn signal light is next to
the headlight bulb. Insert the socket back into the
headlight assembly. Turn it
clockwise to lock it in place.
Testthelightstomakesurethe
new bulb is working. Pull the burned out bulb straight
out of its socket. Push the new
bulb straight into the socket until
it bottoms.
4.
5.
6.
7.
1.
2.3.
4.
5.
Lights
Maint enance
Replacing a Front Side Marker/
Turn Signal Light Bulb
288
BULB

Reinstall the socket into the light
assembly by turning it clockwise
until it locks.
Testthelightstomakesurethe
new bulb is working.
Align the clips on the taillight
assembly with the holes in the
body, then push the taillight
assembly into place. Tighten the
two mounting screws securely and
reinstall the covers.Place a cloth and insert a small
f lat-tipped screwdriver between
the right edge of the lens and the
housing. The lens will come down.
Pull the bulb straight out of its
socket. Push the new bulb in until
it bottoms in the socket.Turn on the parking lights and
check that the new bulb is
working.
Put the lens back into the light
assembly, lef t side f irst. Push on
the right edge until it snaps into
place.
Pull the burned out bulb straight
out of its socket. Push the new
bulb straight into the socket until
it bottoms.
1.
2.
6.
7.
8.
9.
3.
4.
Maint enance
Lights
Replacing a Rear License Plate
Bulb
291
BULB
LENS

Dirt build-up in the loops of the seat
belt anchors can cause the belts to
retract slowly. Wipe the insides of
the loops with a clean cloth
dampened in mild soap and warm
water or isopropyl alcohol.Clean the windows, inside and out,
with a commercially-available glass
cleaner. You can also use a mixture
of one part white vinegar to ten parts
water. This will remove the haze that
builds up on the inside of the
windows. Use a sof t cloth or paper
towels to clean all glass and clear
plastic surf aces.If you want to use an air f reshener/
deodorizer in the interior of your
vehicle, it is best to use a solid type.
Some liquid air f resheners contain
chemicals that may cause parts of
the interior trim and f abric to crack
or discolor.
If youusealiquidairfreshener,
make sure you f asten it securely so it
does not spill as you drive.
Interior Care
Appearance Care
Windows
A ir Fresheners
303
The rear window def ogger wires are
bonded to the inside of the glass.
Wiping vigorously up-and-down can
dislodge and break the def ogger wires.
When cleaning the rear window, use
gentle pressure and wipe side-to-side.