Page 206 of 292

Under severe operating conditions, the A/C may cycle on and off to
protect overheating of the engine.
Avoid excessive speed because vehicle momentum can work against you
and cause the vehicle to become stuck to the point that assistance may
be required from another vehicle. Remember, you may be able to back
out the way you came if you proceed with caution.
Mud and water
If you must drive through high water, drive slowly. Traction or brake
capability may be limited.
When driving through water, determine the depth; avoid water higher
than the bottom of the wheel rims (for cars) or the bottom of the hubs
(for trucks) (if possible) and proceed slowly. If the ignition system gets
wet, the vehicle may stall.
Once through water, always try the brakes. Wet brakes do not stop the
vehicle as effectively as dry brakes. Drying can be improved by moving
your vehicle slowly while applying light pressure on the brake pedal.
Be cautious of sudden changes in vehicle speed or direction when you
are driving in mud. Even AWD vehicles can lose traction in slick mud. As
when you are driving over sand, apply the accelerator slowly and avoid
spinning your wheels. If the vehicle does slide, steer in the direction of
the slide until you regain control of the vehicle.
If the engine, transmission, AWD System components or axles are
submerged in water, their fluids should be checked and changed, if
necessary.
Driving through deep water may damage the engine or
transmission.
If the front or rear axle is submerged in water, the axle lubricant and
PTU (Power Transfer Unit) lubricant should be checked and changed if
necessary.
After driving through mud, clean off residue stuck to rotating driveshafts
and tires. Excess mud stuck on tires and rotating driveshafts causes an
imbalance that could damage drive components.
2009 MKZ(378)
Owners Guide
USA(fus)
Driving
206
Page 207 of 292

“Tread Lightly” is an educational
program designed to increase public
awareness of land-use regulations
and responsibilities in our nations
wilderness areas. Ford Motor
Company joins the U.S. Forest Service and the Bureau of Land
Management in encouraging you to help preserve our national forest and
other public and private lands by “treading lightly.”
Driving on hilly or sloping terrain
Although natural obstacles may make it necessary to travel diagonally up
or down a hill or steep incline, you should always try to drive straight up
or straight down.Avoid driving crosswise or turning on steep
slopes or hills.A danger lies in losing traction, slipping sideways and
possibly rolling over. Whenever driving on a hill, determine beforehand
the route you will use. Do not drive over the crest of a hill without
seeing what conditions are on the other side. Do not drive in reverse
over a hill without the aid of an observer.
When climbing a steep slope or hill, start in a lower gear rather than
downshifting to a lower gear from a higher gear once the ascent has
started. This reduces strain on the engine and the possibility of stalling.
If you do stall out, do not try to turnaround because you might roll over.
It is better to back down to a safe location.
Apply just enough power to the wheels to climb the hill. Too much
power will cause the tires to slip, spin or lose traction, resulting in loss of
vehicle control.
Descend a hill in the same gear you
would use to climb up the hill to
avoid excessive brake application
and brake overheating. Do not
descend in neutral; instead,
disengage overdrive or manually
shift to a lower gear. When
descending a steep hill, avoid
sudden hard braking as you could
lose control. The front wheels have
to be turning in order to steer the
vehicle.
Your vehicle has anti-lock brakes, therefore apply the brakes steadily. Do
not “pump” the brakes.
2009 MKZ(378)
Owners Guide
USA(fus)
Driving
207
Page 209 of 292
DRIVING THROUGH WATER
If driving through deep or standing
water is unavoidable, proceed very
slowly especially when the depth is
not known. Never drive through
water that is higher than the bottom
of the wheel rims (for cars) or the
bottom of the hubs (for trucks).
When driving through water, traction or brake capability may be limited.
Also, water may enter your engine’s air intake and severely damage your
engine or your vehicle may stall.Driving through deep water where
the transmission vent tube is submerged may allow water into the
transmission and cause internal transmission damage.
Once through the water, always dry the brakes by moving your
vehicle slowly while applying light pressure on the brake pedal.
Wet brakes do not stop the vehicle as quickly as dry brakes.
2009 MKZ(378)
Owners Guide
USA(fus)
Driving
209
Page 212 of 292

FUEL PUMP SHUT-OFF SWITCH
This device stops the electric fuel pump from sending fuel to the engine
when your vehicle has had a substantial jolt.
After an accident, if the engine cranks but does not start, this switch
may have been activated.
The fuel pump shut-off switch is
located in the front passenger
footwell area in the right upper
corner.
To reset the switch:
1. Turn the ignition to the off
position.
2. Check the fuel system for leaks.
3. If no leaks are apparent, reset the
switch by pushing in on the reset
button.
4. Turn the ignition to the on
position.
5. Wait a few seconds and return
the key to off position.
6. Make another check for leaks.
FUSES AND RELAYS
Fuses
If electrical components in the
vehicle are not working, a fuse may
have blown. Blown fuses are
identified by a broken wire within
the fuse. Check the appropriate
fuses before replacing any electrical
components.
Note:Always replace a fuse with one that has the specified amperage
rating. Using a fuse with a higher amperage rating can cause severe wire
damage and could start a fire.
15
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
212
Page 215 of 292

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
13 7.5A Cluster, Analog clock, Climate
control head units
14 15A Washer pump
15 20A Cigar lighter
16 15A Door lock actuator, Decklid lock
solenoid
17 20A Not used (Spare)
18 20A Radio head units, OBDII connector
19 7.5A Not used (Spare)
20 7.5A Power mirrors, Satellite radio
module, All wheel drive
21 7.5A Stop lamps, CHMSL
22 7.5A Audio
23 7.5A Wiper relay coil, Cluster logic
24 7.5A OCS (Passenger’s seat), PAD
indicator
25 7.5A RCM
26 7.5A PATS Transceiver, Brake shift
interlock solenoid, Brake pedal
switch, Automatic transmission
module
27 7.5A Cluster, Climate control head units
28 10A ABS/Traction Control, Heated seats,
Compass, Reverse sensing system
C/B 30A Circuit
BreakerMoon roof, Delayed accessory (SJB
fuse 12, rear power windows)
Power distribution box
The power distribution box is located in the engine compartment. The
power distribution box contains high-current fuses that protect your
vehicle’s main electrical systems from overloads.
WARNING:Always disconnect the battery before servicing high
current fuses.
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
215
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 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 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