Page 379 of 433

Diagnosing why the engine won’t
start f alls into two areas, depending
on what you hear when you turn the
ignition switch to the START (III)
position:When you turn the ignition switch to
the START (III) position, you do not
hear the normal noise of the engine
trying to start. You may hear a
clicking sound, a series of clicks, or
nothing at all.
If the headlights dim noticeably or
go out when you try to start the
engine, either the battery is
discharged or the connections are
corroded. Check the condition of the
battery and terminal connections
(see page ). You can then try
jump starting the vehicle from a
booster battery (see page ).
You can hear the starter motor
operating normally, or the starter
motor sounds like it is spinning
f aster than normal, but the engine
does not start up and run.
You hear nothing, or almost
nothing. The engine’s starter
motor does not operate at all, or
operates very slowly.
Check the transmission interlock.
The transmission must be in Park
or neutral or the starter will not
operate.
Check these things:
Turn the ignition switch to the ON
(II) position. Turn on the
headlights, and check their
brightness. If the headlights are
very dim or do not come on at all,
the battery is discharged. See on page . Turn the ignition switch to the
START (III) position. If the
headlights do not dim, check the
condition of the f uses. If the f uses
areOK,thereisprobably
something wrong with the
electrical circuit f or the ignition
switch or starter motor. You will
need a qualif ied mechanic to
determine the problem (see
on page ).
377 391
366 377
Nothing Happens or the Starter
Motor Operates Very Slowly
Jump Starting Emergency T owing
If theEngineWon’tStart
T aking Care of t he Unexpect ed
375
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Although this seems like a simple
procedure, you should take several
precautions.Open the hood, and check the
physical condition of the battery.
In very cold weather, check the
condition of the electrolyte. If it
seems slushy or f rozen, do not try
jump starting until it thaws.
The numbers in the illustration show
you the order to connect the jumper
cables.
You cannot start your vehicle by
pushing or pulling it. Turn of f all electrical accessories:
heater, A/C, climate control, audio
system, lights, etc. Put the
transmission in Park, and set the
parking brake.
1.
2.
CONT INUED
To Jump Start Your Vehicle:
Jump Starting
T aking Care of t he Unexpect ed
377
BOOSTER
BATTERY
A battery can explode if you do
not follow the correct procedure,
seriously injuring anyone
nearby.
Keep all sparks, open flames,
and smoking materials away
from the battery.
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.
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Page 385 of 433

Let the vehicle sit f or a minute.
Open the hood, and check the oil
level (see page ). An engine
very low on oil can lose pressure
during cornering and other driving
maneuvers.
Saf ely pull of f the road, and shut
of f the engine. Turn on the hazard
warning lights.
Start the engine, and watch the oil
pressure indicator. If it does not go
out within 10 seconds, turn of f the
engine. There is a mechanical
problem that needs to be repaired
bef ore you can continue driving
(see on page).
If necessary, add oil to bring the
level back to the full mark on the
dipstick (see page ).
This indicator should never come on
when the engine is running. If it
starts flashing or stays on, the oil
pressure has dropped very low or
lost pressure. Serious engine
damage is possible, and you should
take immediate action.
You will also see an ‘‘OIL
PRESSURE LOW’’ message on the
multi-inf ormation display (see page
). If the charging system indicator
comes on brightly when the engine
is running, the battery is not being
charged.
You will also see a ‘‘CHECK
CHARGING SYSTEM’’ message on
the multi-information display (see
page ).
Immediately turn of f all electrical
accessories. Try not to use other
electrically operated controls such as
the power windows. Keep the engine
running; starting the engine will
discharge the battery rapidly.
Go to a service station or garage
where you can get technical
assistance.
1.
2.
4.
3.
276
336
391
77
77
L ow Oil Pressure Indicator, Charging System Indicator
Emergency T owing
L ow Oil Pressure
Indicator
Charging System
Indicator
T aking Care of t he Unexpect ed
381
Running the engine with low oil
pressure can cause serious mechanical
damage almost immediately. Turn of f
the engine as soon as you can saf ely get
the vehicle stopped.
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Page 387 of 433

If the f luid level is low, take your
vehicle to a dealer, and have the
brake system inspected f or leaks or
worn brake pads.
However, if the brake pedal does not
f eel normal, you should take
immediate action. A problem in one
part of the system’s dual circuit
design will still give you braking at
two wheels. You will f eel the brake
pedal go down much f arther bef ore
the vehicle begins to slow down, and
you will have to press harder on the
pedal.Slow down by shif ting to a lower
gear, and pull to the side of the road
when it is saf e. Because of the long
distance needed to stop, it is
hazardous to drive the vehicle. You
should have it towed, and repaired as
soon as possible (see
on page ).
You will also see a ‘‘CHECK BRAKE
SYSTEM’’ message on the multi-
inf ormation display (see page ). If you must drive the vehicle a short
distance in this condition, drive
slowly and caref ully.
If the ABS indicator and the VSA
system indicator come on with the
brake system indicator, have your
vehicle inspected by your dealer
immediately.
The brake system indicator (red)
normallycomesonwhenyouturn
the ignition switch to the ON (II)
position, and as a reminder to check
the parking brake. It will stay on if
you do not f ully release the parking
brake.
If the brake system indicator (red)
comes on while driving, the brake
f luid level is probably low. Press
lightly on the brake pedal to see if it
f eels normal. If it does, check the
brake f luid level the next time you
stop at a service station (see page
).
You will also see a ‘‘BRAKE FLUID
LOW’’ message on the multi-
inf ormation display (see page ). 77391
345 77
Brake System Indicator
Emergency
Towing
Brake System
Indicator (Red)
T aking Care of t he Unexpect ed
383
Canada
U. S.
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Page 390 of 433
Turn the ignition switch to the
LOCK (0) position. Make sure the
headlights and all other
accessories are of f .
Remove the cover f rom the f use
box.Check each of the large f uses in
the under-hood f use box by
looking through the side window
atthewireinside.Removethe
screws with a Phillips-head
screwdriver.
If something electrical in your
vehicle stops working, the first thing
youshouldcheckforisablownfuse.
Determine f rom the chart on pages
and , or the diagram on the
fuse box lid, which fuse or fuses
control that device. Check those
f uses f irst, but check all the f uses
bef ore deciding that a blown f use is
the cause. Replace any blown f uses,
and check if the device works.
3.
1.
2. (Under-hood f use boxes) 389390
Fuses
Checking and Replacing Fuses
386
FUSE
BLOWN BLOWN
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µ
µ
µ
µ
No. No. Circuits ProtectedNo.
Circuits Protected
Amps. Amps. Amps. Circuits Protected
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 RR Wiper
OPDS
Meter
SRS
Right Headlight High
Left Headlight High
Small Lights (Interior)
Small Lights (Exterior) 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
SH-AWD
Fuel Pump
ACG
ABS/VSA
Heated Seat
FR Fog Lights
Driver’s Power Seat Lumbar
Support
7.5 A
20 A
15 A
7.5 A 15 A
20 A
7.5 A 10 A
7.5 A
7.5 A 10 A
10 A
10 A
7.5 A 15 A 15 A
15 A
20 A
20 A
7.5 A 30 A
20 A
20 A
20 A
15 A
15 A
20 A
20 A
20 A
20 A
7.5 A 10 A
7.5 A 30 A Right Headlight Low
Left Headlight Low
Headlight High Main
Small Lights Main
TPMS
Headlight Low Main
Not Used
Not Used
Moonroof
Door Lock
Driver’s Power Window
Not Used
Accessory Socket (Console
Compartment)
ACC
Passenger’s Power Window
Radio Amplifier
Right Rear Power Window
Left Rear Power Window
Not Used
Radio
HAC
Daytime Running Light
FR Wiper
Fuse Locations
T aking Care of t he Unexpect ed
389
INTERIOR FUSE BOX
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No.
No. Amps. Amps. Circuits Protected
Circuits Protected
No. Amps. Circuits Protected
11
12
13
14
15
16
17
18
19
20
21
22
23
1
2
3
4
5
6
7
8
9
10 100 A
30 A
80 A
50 A
40 A
20 A
50 A
40 A
30 A
30 A
30 A
30 A
40 A
15 A 15 A
15 A
20 A
20 A
7.5 A 20 A
15 A
15 A
15 A
7.5 A 15 A
7.5 A 10 A
Main Fuse
SH-AWD
Option Main
Ignition Switch Main
ABS/VSA Motor
ABS/VSA Fail Safe
Headlight Main
Power Window Main
Passenger’s Power Seat
Reclining
Main Fan Motor
Sub Fan Motor
Rear Defogger
Blower
Hazard
Electric Vacuum Pump
Passenger’s Power Seat
Reclining
1
2
7.5 A
20 A LAF
Stop & Horn
Driver’s Power Seat Reclining
Driver’s Power Seat Sliding
IGPS Oil Level
Passenger’s Power Seat Sliding
Electric Vacuum Pump
IG Coil
FI Main
MG Clutch
DBW
Interior Light
Back Up
Fuse Locations
390
Primary Fuse Box
Secondary Fuse Box
UNDER-HOOD FUSE BOXES
PRIMARY
SECONDARY
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Page 401 of 433

µµµ
µ
µ
Î µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
Î
Specif ications
Technical Inf ormation
397
Air Conditioning
Battery Fuses
Alignment
Tires
Lights
HFC-134a (R-134a)
15.8 17.6 oz (450 500 g) SP-10
Refrigerant type
Charge quantity
Lubricant type
12 V 60 W
12 V 35 W
12 V 24/2.2 CP
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
Capacity 12 V
12 V65 AH/20 HR
52 AH/5 HR
12 V
12 V
5W
4CP
8W
16 W
3CP
2CP
21 W
3CP
21/5 W
21 W
3CP
55 W
12 V
12 V 2 CP Interior
Under-hood
Toe-in
Camber
Caster
0.0in(0mm)
0.10 in (2.5 mm) 0°10’1°
2°57’
Size
Pressure P235/55R18 99V
T165/80D17 104M
32 psi (220 kPa , 2.2 kgf/cm
)
60 psi (420 kPa , 4.2 kgf/cm)
Headlights
Front turn signal/parking
lights
Front fog lights
Front side marker lights
Rear turn signal lights
Brake/Taillights (in fenders)
Taillights (in tailgate)
Back-up lights
Rear side marker lights
License plate lights
High-mount brake light
Rear ceiling light
Front ceiling lights/Spotlights
Door courtesy lights
Cargo area light See page389or the fuse label
attached to the dashboard.
See page390or the fuse box
covers.
The low beam headlight bulbs are high voltage discharge bulbs.
Replacement of a low beam headlight bulb should be performed by
your dealer. Front
Rear
Front
Rear
Front
Front/Rear
Spare
Front/Rear
Spare
: (HB3)
(D2S)
High
Low
(Amber)
(H11)
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2009 RDX