Page 247 of 367

All components of the AWD system are sealed for life and require no
maintenance.
Note:When an AWD system fault is present, the warningCHECK AWD
will display in the message center. The AWD system is not functioning
correctly and defaulted to front-wheel drive. When this warning is
displayed, have your vehicle serviced at an authorized dealer
If your vehicle is equipped with AWD, a spare tire of a different size
other than the tire provided should never be used. If the spare tire is
installed, the AWD system may disable automatically and enter
front-wheel drive only mode to protect driveline components. This
condition may be indicated by anAWD OFFmessage in the message
center (seeMessage centersection in theInstrument Clusterchapter
for more information). If there is anAWD OFFmessage in the message
center from using the spare tire, this indicator should turn off after
reinstalling the repaired or replaced normal road tire and driving a short
distance. It is recommended to reinstall the repaired or replaced road
tire as soon as possible. Major dissimilar tire sizes between the front and
rear axles could cause the AWD system to stop functioning and default
to front-wheel drive or damage the AWD system.
Note:TheAWD OFFmessage may also be displayed in the message
center if the AWD system has overheated and defaulted to front-wheel
drive. This condition may occur if the vehicle was operated in extreme
conditions with excessive wheel slip, such as deep sand. To resume
normal AWD function as soon as possible, stop the vehicle in a safe
location and allow it to idle. TheAWD OFFmessage will turn off when
the system cools and normal AWD function returns.
Note:The AWD feature gives your vehicle some limited off-road
capabilities in which driving surfaces are relatively level, obstruction-free
and otherwise similar to normal on-road driving conditions. Operating
your vehicle under other than those conditions could subject the vehicle
to excessive stress which might result in damage which is not covered
under your warranty.
Driving off-highway with AWD vehicles
AWD vehicles are equipped for driving on sand, snow, mud and rough
roads and have operating characteristics that are somewhat different
from conventional vehicles, both on and off the highway.
When driving at slow speeds off-highway under high outside
temperatures, use L (Low) gear when possible. L (Low) gear operation
will maximize the engine and transmission cooling capability.
Driving
247
2011 MKX(mkx)
Owners Guide, 1st Printing
USA(fus)
Page 258 of 367
The fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
1 30A Driver front smart window
2 15A Not used (spare)
3 30A Passenger front smart window
4 10A Demand lamps
5 20A Subwoofer
6 5A RF module
7 7.5A Power mirror switch, Memory seat
switch, Driver seat module
8 10A Not used (spare)
9 10A Power liftgate
10 10A Run/accessory relay
11 10A Instrument panel cluster, Heads-up
display
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
223341
42
43
44
45
34
35
36
37
23
24
25
26
27
283846
394729
32
40
31
30
48
49
Roadside Emergencies
258
2011 MKX(mkx)
Owners Guide, 1st Printing
USA(fus)
Page 260 of 367

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
32 15A Moon roof, Power windows,
Compass/auto-dimming rear view mirror
33 10A Not used (spare)
34 10A Reverse sensing system, Rearview
camera, Blind spot monitor, Rear heated
seat module
35 5A Heads-up display
36 10A Heated steering wheel
37 10A Climate control
38 10A Not used (spare)
39 15A High beam headlamps
40 10A Rear park lamps
41 7.5A Occupant classification sensor (OCS),
Restraints control module
42 5A Not used (spare)
43 10A Not used (spare)
44 10A Not used (spare)
45 5A Not used (spare)
46 10A Climate control
47 15A Fog lamps
48 30A Circuit
BreakerPower windows/moon roof
49 — Delayed accessory relay
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.
Roadside Emergencies
260
2011 MKX(mkx)
Owners Guide, 1st Printing
USA(fus)
Page 341 of 367

GENERAL MAINTENANCE INFORMATION
Why maintain your vehicle?
This guide describes the scheduled maintenance required for your
vehicle. Carefully following this schedule helps protect against major
repair expenses resulting from neglect or inadequate maintenance and
may also help to increase the value of your vehicle when you sell or
trade it.
It is your responsibility to see that all scheduled maintenance is
performed and that the materials used meet Ford engineering
specifications. Failure to perform scheduled maintenance specific in this
guide will invalidate warranty coverage on parts affected by the lack of
maintenance. Be sure receipts for completed maintenance are kept with
the vehicle and confirmation of the work performed is always recorded in
this guide.
Your Ford or Lincoln Mercury dealer has factory-trained technicians who
can perform the required maintenance using genuine Ford parts. They
are committed to meeting your service needs and to assuring your
continuing satisfaction.
Protecting your investment
Maintenance is an investment that will pay dividends in the form of
improved reliability, durability and resale value. To ensure the proper
performance of your vehicle and its emission control systems, it is
imperative that scheduled maintenance be completed at the designated
intervals.
For your convenience, your vehicle is equipped with a message center
which determines the proper oil change service interval. You should
perform the engine oil change as indicated by the instrument cluster
message center. The message center will display ENGINE OIL CHANGE
SOON or OIL CHANGE REQUIRED to indicate when an oil change is
needed. The engine oil change service needs to be completed within two
weeks or 500 miles (800 km) after the OIL CHANGE REQUIRED
message is displayed. Your oil change service interval can be up to one
year or 10,000 miles (16,000 km). Reset your Intelligent Oil Life
Monitor™ after each engine oil and filter change; refer to the
Instrument Clusterchapter.
Scheduled Maintenance Guide
341
2011 MKX(mkx)
Owners Guide, 1st Printing
USA(fus)
Page 347 of 367

NORMAL SCHEDULED MAINTENANCE AND LOG
For your convenience, your vehicle is equipped with a message center
which determines the proper oil change service interval. You should
perform the engine oil change as indicated by the instrument cluster
message center. The message center will display ENGINE OIL CHANGE
SOON or OIL CHANGE REQUIRED to indicate when an oil change is
needed. The engine oil change service needs to be completed within two
weeks or 500 miles (800 km) after the OIL CHANGE REQUIRED
message is displayed. Your oil change service interval can be up to one
year or 10,000 miles (16,000 km). Reset your Intelligent Oil Life
Monitor™ after each engine oil and filter change; refer to the
Instrument Clusterchapter.
If your message center is prematurely reset or becomes inoperative, you
should perform the oil change interval at six months or 5,000 miles
(8,000 km) from your last oil change.
Scheduled Maintenance Guide
347
2011 MKX(mkx)
Owners Guide, 1st Printing
USA(fus)