Page 555 of 609
22. Slowly turn the wheel nut wrenchclockwise to take up the slack of
the hoist cable. Make sure the
bracket is seated in the center hole
of the flat tire.
23. Turn the wheel nut wrench clockwise until the flat tire rests
against the underbody of the
vehicle and you hear the hoist
click.
Always raise the spare tire hoist, even if
you are not stowing a tire. If the hoist is
left down, it will be damaged during
driving and need to be replaced.
24. Store the jack in its holder. Turn the jack's end bracket to lock it in
place. Store the tools, and install
the cover.
25. Refer to Changing a Tire with
TPMS (see page 453).
Loose items can fly around the
interior in a crash and could
seriously injure the occupants.
Store the wheel, jack, and tools
securely before driving.
WHEEL NUT WRENCH
Changing a Flat Tire55010/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu
Page 556 of 609

Diagnosing why the engine won't
start falls into two areas, depending
on what you hear when you turn the
ignition switch to the START (III)
position:●
You hear nothing, or almost
nothing. The engine's starter
motor does not operate at all, or
operates very slowly.
●
You can hear the starter motor
operating normally, or the starter
motor sounds like it is spinning
faster than normal, but the engine
does not start up and run.
Nothing Happens or the Starter
Motor Operates Very Slowly
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. Check these things:
●
Check the transmission interlock.
The transmission must be in Park
or neutral or the starter will not
operate.
●
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
Jump Starting
on page 552.
●
Turn the ignition switch to the
START (III) position. If the
headlights do not dim, check the
condition of the fuses. If the fuses
are OK, there is probably
something wrong with the
electrical circuit for the ignition
switch or starter motor. You will
need a qualified technician to
determine the problem. See
Emergency Towing on page 566.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 541). You
can then try jump starting the
vehicle from a booster battery (see
page 552).
The Starter Operates Normally
In this case, the starter motor's speed
sounds normal, or even faster than
normal, when you turn the ignition
switch to the START (III) position,
but the engine does not run.
●
Are you using a properly coded
key? An improperly coded key will
cause the immobilizer system
indicator in the instrument panel
to blink rapidly (see page 72).
CONTINUED
If the Engine Won't Start
551
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Page 560 of 609

4. If the temperature gauge stays atthe red mark, turn off the engine.
5. Look for any obvious coolant leaks, such as a split radiator hose.
Everything is still extremely hot,
so use caution. If you find a leak, it
must be repaired before you
continue driving (see Emergency
Towing on page 566).
6. If you do not find an obvious leak, check the coolant level in the
radiator reserve tank. Add coolant
if the level is below the MIN mark.
7. If there was no coolant in the reserve tank, you may need to add
coolant to the radiator. Let the
engine cool down until the pointer
reaches the middle of the
temperature gauge, or lower,
before checking the radiator.
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.
8. Using gloves or a large heavy cloth, turn the radiator cap
counterclockwise, without pushing
down, to the first stop. After the
pressure releases, push down on
the cap, and turn it until it comes
off. 9. Start the engine and set the
climate control to AUTO at ‘‘Hi. ’’
Add coolant to the radiator up to
the base of the filler neck. If you
do not have the proper coolant
mixture available, you can add
plain water. Remember to have the
cooling system drained and refilled
with the proper mixture as soon as
you can.
10. Put the radiator cap back on tightly. Run the engine, and check
the temperature gauge. If it goes
back to the red mark, the engine
needs repair (see Emergency
Towing on page 566).
11. If the temperature stays normal, check the coolant level in the
radiator reserve tank. If it has gone
down, add coolant to the MAX
mark. Put the cap back on tightly.
If the Engine Overheats
555
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Page 565 of 609
The secondary fuse box is on the
passenger's side.
To open it, push the tabs as shown.
U.S. Advance Package, AdvancePackage with Entertainment, andCanadian Elite Package modelsThe sub fuse box is on the
passenger's side.
To open it, push the tabs as shown. Checking and Replacing Fuses
If something electrical in your
vehicle stops working, the first thing
you should check for is a blown fuse.
Determine from the chart on pages
563, 564, and 565, or the diagram on
the fuse box lid, which fuse or fuses
control that device. Check those
fuses first, but check all the fuses
before deciding that a blown fuse is
the cause. Replace any blown fuses,
and check if the device works.
1. Turn the ignition switch to the
LOCK (0) position. Make sure the
headlights and all other
accessories are off.
2. Remove the cover from the fuse box.
UNDER-HOOD (SECONDARY)
TAB
UNDER-HOOD (SUB)
TAB
Fuses56010/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu
Page 568 of 609

PRIMARY UNDER-HOOD FUSE BOX
No. Amps. Circuits Protected1 120 A Main fuse - Not Used
2 - 1 - Not Used
2 - 2 30 A SH-AWD
2 - 3 30 A Rear Blower Motor
2 - 4 40 A ABS VSA
2 - 5 40 A Trailer Main
2 - 6 40 A Power Seats, Driver's Position
Memory System, Subwoofer,
Telescopic Steering Wheel
2 - 7 40 A Front Heated Seat, TPMS,
Moonroof, Driver's Lumbar
Support
2 - 8 - Not Used
3 - 1 60 A Fog Lights, Front Blower
Motor, Interior Light
3 - 2 40 A Headlights, Daytime Running
Lights
3 - 3 60 A Cooling Fan, Condenser Fan,
MG Clutch, Headlight
Washer
ꭧ1
3- 4 50 A Ignition Switch Main
ꭧ 1: Canadian model
ꭧ 2: If equipped No. Amps. Circuits Protected
3 - 5 50 A Power Window
3 - 6 60 A Power Tailgate Opener/Closer,
Rear ACC Socket, Interior
Light,
Rear Defroster
3 - 7 30 A ECU (PCM)
3 - 8 30 A TECH
4 40 A Audio, Door Lock, Interior Lights, Front ACC Socket
5 30 A EPT-L
ꭧ 2
6 30 A EPT-R
ꭧ2
7 30 A Active Damper Control Unit
ꭧ2
8 30 A Audio Amplifier
9 7.5 A Battery Sensor
10 15 A Hazard
11 15 A Horn, Stop
12 20 A ABS VSA
13 20 A Trailer (Brake)
14 20 A Rear Heated Seat
ꭧ 2
15 20 A A/C Inverter
CONTINUED
Fuse Locations
563
Taking Care of the Unexpected
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Page 570 of 609

INTERIOR FUSE BOXNo. Amps. Circuits Protected1 7.5 A TPMS
2 10 A Driver's Lumbar Support Motor
3 15 A Moonroof
4 20 A Front Heated Seats
5 10 A Audio
6 7.5 A Interior Light
7 10 A Back Up
8 20 A Door Lock
9 15 A ACC Socket
10 15 A IG Coil
11 30 A Windshield Wiper
12 10 A Subwoofer
13 20 A Passenger's Power Recline No. Amps. Circuits Protected
14 20 A Driver's Power Slide
15 20 A Telescopic Steering Wheel
16 20 A Driver's Power Recline
17 20 A Passenger's Power Slide
18 10 A Alternator
19 20 A Fuel Pump
20 10 A SH-AWD, ODS
21 7.5 A Gauges
22 10 A SRS
23 - Not Used
24 20 A Left Rear Power Window
25 20 A Right Rear Power Window
26 30 A Passenger's Power Window
27 30 A Driver's Power Window
28 20 A Tilt Steering Wheel
29 10 A ABS VSA
30 10 A A/C
31 15 A Washer
32 10 A ACC
33 - Not Used
Auxiliary (Holder1)No. Amps. Circuits Protected
1 7.5 A Starter DIAG
2 7.5 A SH-AWDAuxiliary (Holder2)No. Amps. Circuits Protected1 7.5 A STS
2 7.5 A ODS
Auxiliary
(Holder1) Auxiliary
(Holder2)
Fuse Locations
565
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Page 576 of 609
The engine number is stamped into
the engine block. It is on the front.
The transmission number is on a
label on top of the transmission.
ENGINE NUMBERAUTOMATIC TRANSMISSION NUMBER
Identification Numbers
571
Technical Information
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Page 596 of 609

A
Accessories andModifications
..........................
426
ACCESSORY (Ignition Key Position)
.................................
138
Accessory Power Sockets
..........
175
AC Power Outlet
........................
176
Active Damper System
...............
478
Active Head Restraints
...............
151
AcuraLink
®(U.S. models
only)
.......................................
398
Adaptive Cruise Control (ACC)
.....................................
345
Additives, Engine Oil
.................
512
Adjusting the Steering Wheel
....
133
Advanced Airbags
........................
30
Airbag (SRS)
..........................
10, 26
Air Conditioning System
............
180
Rear A/C Control
....................
185
Air Outlets (Vents)
.....................
187
Air Pressure, Tires
..............
534, 535
Alcohol in Gasoline
....................
418
Antifreeze
...................................
514 Anti-lock Brakes (ABS)
Indicator
............................
68, 456
Operation
................................
455
Anti-theft, Audio System
.............
305
Anti-theft Steering Column Lock
.......................................
138
Audio System
......................
190, 209
Automatic Climate Control.........
181
Automatic Lighting Off Feature
...................................
130
Automatic Seat Belt Tensioners...
23
Automatic Speed Control
...........
342
Automatic Transmission
............
437
Capacity, Fluid
........................
572
Checking Fluid Level
..............
517
Driving with the Paddle Shifters
................................
441
Shifting
...................................
438
Shift Lever Position Indicators
............................
437
Shift Lever Positions
...............
438
Shift Lock Release
...................
440
Auxiliary Input Jack
...................
304 B
Battery
Charge Low
..............................
82
Charging System Indicator
........................
67, 556
Jump Starting
..........................
552
Maintenance
...........................
541
Specifications
..........................
573
Before Driving
...........................
417
Belts, Seat
................................
9, 21
Beverage Holders
......................
172
Blind Spot Information System (BSI)
......................................
470
Bluetooth
®Audio
.......................
295
Bluetooth
®HandsFreeLink
®
......
362
Booster Seats
...............................
57
CONTINUED
Index
I
INDEX
10/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu