Page 217 of 292
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
9 20A** Wipers
10 30A** ABS Valves
11 30A** Passenger heated/cooled seat
12 30A** Driver heated/cooled seat
13 10A* SYNC
14 15A* Ignition switch
15 10A* Memory module logic
16 15A* Transmission
17 10A* Alternator sense
18 — Not used
19 40A** Logic feed to SJB (solid state
devices)
20 20A** THXII Amplifier #1
21 20A** THXII Amplifier #2
22 20A** Console power point
23 10A* PCM KAM and canister vent
solenoid
24 15A* Fog lamps
25 10A* A/C Compressor clutch
26 15A* LH HID Low beam
27 15A* RH HID Low beam
28 80A*** Engine cooling fan
29 — Not used
30 30A** Fuel pump/injectors relay
31 30A** Passenger power seat
32 30A** Driver power seat
33 20A** Moon roof
34 30A** Driver Smart power window
35 30A** Passenger Smart power window
36 1A* PCM diode
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
217
Page 218 of 292

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
37 1A* One Touch Integrated Start
(OTIS) diode
38 — Not used
39 — Not used
40 — Not used
41 Relay Fog lamp relay
42 Relay Wiper park relay
43 Relay A/C clutch relay
44 — Not used
45 — Not used
46 15A* Injectors
47 15A* PCM class B
48 15A* Coil on plug
49 15A* PCM class C
50 Full ISO Relay LH HID low beam relay
51 Full ISO Relay RH HID low beam relay
52 Full ISO Relay Blower relay
53 — Not used
54 Full ISO Relay Fuel pump/injectors relay
55 Full ISO Relay Wiper RUN relay
56 — Not used
57 Full ISO Relay PCM relay
58 — Not used
*Mini fuses **A1 fuses ***A3 fuses
CHANGING THE TIRES
If you get a flat tire while driving, do not apply the brake heavily.
Instead, gradually decrease your speed. Hold the steering wheel firmly
and slowly move to a safe place on the side of the road.
Note:The tire pressure monitoring system (TPMS) indicator light will
illuminate when the spare tire is in use. To restore the full functionality
of the monitoring system, all road wheels equipped with tire pressure
monitoring sensors must be mounted on the vehicle.
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
218
Page 219 of 292

Have a flat serviced by an authorized dealer in order to prevent damage
to the TPMS sensors, refer toTire pressure monitoring system
(TPMS)in theTires, Wheels and Loadingchapter. Replace the spare
tire with a road tire as soon as possible. During repairing or replacing of
the flat tire, have the authorized dealer inspect the TPMS sensor for
damage.
WARNING:The use of tire sealants may damage your Tire
Pressure Monitoring System and should not be used.
WARNING:Refer toTire pressure monitoring system (TPMS)
in theTires, Wheels and Loadingchapter for important
information. If the tire pressure monitor sensor becomes damaged, it
will no longer function.
Dissimilar spare tire/wheel information
WARNING:Failure to follow these guidelines could result in an
increased risk of loss of vehicle control, injury or death.
If you have a dissimilar spare tire/wheel, then it is intended for
temporary use only. This means that if you need to use it, you should
replace it as soon as possible with a road tire/wheel that is the same size
and type as the road tires and wheels that were originally provided by
Ford. If the dissimilar spare tire or wheel is damaged, it should be
replaced rather than repaired.
A dissimilar spare tire/wheel is defined as a spare tire and/or wheel that
is different in brand, size or appearance from the road tires and wheels
and can be one of three types:
1.T-type mini-spare:This spare tire begins with the letter “T” for tire
size and may have “Temporary Use Only” molded in the sidewall
2.Full-size dissimilar spare with label on wheel:This spare tire has
a label on the wheel that states: “THIS TIRE AND WHEEL FOR
TEMPORARY USE ONLY”
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
219
Page 220 of 292

When driving with one of the dissimilar spare tires listed above,do not:
•Exceed 50 mph (80 km/h)
•Load the vehicle beyond maximum vehicle load rating listed on the
Safety Compliance Label
•Tow a trailer
•Use snow chains on the end of the vehicle with the dissimilar spare
tire
•Use more than one dissimilar spare tire at a time
•Use commercial car washing equipment
•Try to repair the dissimilar spare tire
Use of one of the dissimilar spare tires listed above at any one wheel
location can lead to impairment of the following:
•Handling, stability and braking performance
•Comfort and noise
•Ground clearance and parking at curbs
•Winter weather driving capability
•Wet weather driving capability
3.Full-size dissimilar spare without label on wheel
When driving with the full-size dissimilar spare tire/wheel,do not:
•Exceed 70 mph (113 km/h)
•Use more than one dissimilar spare tire/wheel at a time
•Use commercial car washing equipment
•Use snow chains on the end of the vehicle with the dissimilar spare
tire/wheel
The usage of a full-size dissimilar spare tire/wheel can lead to
impairment of the following:
•Handling, stability and braking performance
•Comfort and noise
•Ground clearance and parking at curbs
•Winter weather driving capability
•Wet weather driving capability
•All-Wheel driving capability (if applicable)
•Load leveling adjustment (if applicable)
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
220
Page 221 of 292
When driving with the full-size dissimilar spare tire/wheel additional
caution should be given to:
•Towing a trailer
•Driving vehicles equipped with a camper body
•Driving vehicles with a load on the cargo rack
Drive cautiously when using a full-size dissimilar spare tire/wheel and
seek service as soon as possible.
Stopping and securing the vehicle
1. Park on a level surface, set the parking brake and activate the hazard
flashers.
2. Place the gearshift lever in P (Park) and turn the engine off.
Removing the spare tire and jack
1. Remove the carpeted load floor
panel located in the rear of the
vehicle and remove the lug wrench
and long bolt from the tool bag.
2. Remove the bolt securing the
spare tire using the lug wrench,
then lift and remove the spare tire
from the trunk.
3. Remove the jack retention bolt by
turning it counterclockwise and
remove the jack from the vehicle.
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
221
Page 222 of 292

Tire change procedure
WARNING:To help prevent the vehicle from moving when you
change a tire, be sure the parking brake is set, then block (in
both directions) the wheel that is diagonally opposite (other side and
end of the vehicle) to the tire being changed.
WARNING:If the vehicle slips off the jack, you or someone else
could be seriously injured.
WARNING:Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off the road to
avoid the danger of being hit when operating the jack or changing the
wheel.
Note:Passengers should not remain in the vehicle when the vehicle is
being jacked.
1. Block both the front and rear of
the wheel diagonally opposite the
flat tire. For example, if the left
front tire is flat, block the right rear
wheel.
2. Remove the center ornament (if
equipped) from the wheel. Loosen
each wheel lug nut one-half turn
counterclockwise but do not remove
them until the wheel is raised off
the ground.
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
222
Page 223 of 292

3. Put the jack in the jack locator
next to the tire you are changing.
Turn the jack handle clockwise until
the wheel is completely off the
ground.
Note: To avoid structural damage to
the vehicle, ensure that the jack is
centered between the two markings
(1) on the bottom of the rocker
flange.
WARNING:To lessen the
risk of personal injury, do
not put any part of your body
under the vehicle while changing a
tire. Do not start the engine when
your vehicle is on the jack. The
jack is only meant for changing
the tire.
4. Remove the lug nuts with the lug wrench.
5. Replace the flat tire with the spare tire, making sure the valve stem is
facing outward. Reinstall lug nuts until the wheel is snug against the hub.
Do not fully tighten the lug nuts until the wheel has been lowered.
If you are using the temporary tire, the lug nut washers will not appear
to be flush with the rim. This is normal only when using the temporary
spare tire.
6. Lower the wheel by turning the jack handle counterclockwise.
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
223
Page 224 of 292

7. Remove the jack and fully tighten
the lug nuts in the order shown.
Refer toWheel lug nut torque
specificationslater in this chapter
for the proper lug nut torque
specification.
8. Unblock the wheels.
Stowing the wheel and jack
1. Fully collapse the jack and place it back in the storage area in the
trunk.
2. Replace the jack retention bolt to secure the jack.
3. Place the tire in the storage bin in the trunk.
4. Replace the cover plate and bolt.
•When storing a flat road tire, flip the cover plate over and use the long
bolt.
•When storing the temporary spare tire, replace the cover plate and
use the short bolt.
5. Secure the bolt using the lug wrench.
6. Insert the lug wrench and bolt in the tool bag and place over the jack.
7. Replace the carpeted load floor panel.
WHEEL LUG NUT TORQUE SPECIFICATIONS
Retighten the lug nuts to the specified torque at 500 miles (800 km)
after any wheel disturbance (tire rotation, changing a flat tire, wheel
removal, etc.).
Bolt size Wheel lug nut torque*
lb. ft. N•m
M12 x 1.5 100 135
* Torque specifications are for nut and bolt threads free of dirt and
rust. Use only Ford recommended replacement fasteners.
1
4 3
2 5
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
224