Page 293 of 405
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
13 20A** Left high intensity discharge
(HID) headlamp
14 10A** Brake on/off (BOO) switch
15 25A** Rear wiper
16 20A** Right HID headlamp
17 10A** Alternator sensor
18 20A* Rear power point
19 20A* Console power point
20 40A* Rear defroster
21 20A* Console power point (rear of front
console)
22 — Not used
23 10A** PCM keep alive power, Canister
vent
24 10A** A/C clutch
25 15A** Refrigerator
26 20A** Backup relay
27 15A** Fuel relay (Fuel pump driver
module, Fuel pump)
28 80A* Cooling fan
29 — Not used
30 30A* Battery charge – trailer tow (TT)
31 40A* Auxiliary blower motor
32 30A* Driver seat motor
33 30A* 3rd row power seats
34 30A* Power liftgate
35 40A* Front A/C blower
36 10A** Backup lamps
37 10A** PCM run/start
38 10A** TT backup lamps
39 Diode Fuel diode
40 Diode One touch integrated start diode
Roadside Emergencies
293
2012 Flex(471)
Owners Guide, 1st Printing
USA(fus)
Page 294 of 405

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
41 G8VA relay TT park lamp
42 G8VA relay TT stop/turn lamp (left)
43 G8VA relay TT stop/turn lamp (right)
44 G8VA relay Backup lamps relay
45 — Not used
46 15A** Vehicle power 2, Vehicle power 3
47 20A** Vehicle power 1 – PCM power
48 15A** Vehicle power – coils on plugs
49 10A** Heated mirrors
50 HC micro relay Blower motor
51 HC micro relay Rear wiper
52 HC micro relay Starter
53 HC micro relay 3rd row power seats
54 — Not used
55 HC micro relay Front wiper relay
56 HC micro relay Rear window defroster
57 — Not used
58 — Not used
59 HC micro relay Auxiliary blower motor
60 HC micro relay TT battery charge
61 — Not used
62 G8VA relay Refrigerator
63 — Not used
64 HC micro relay PCM
65 G8VA relay A/C clutch
66 G8VA relay Fuel pump
* Cartridge Fuses ** Mini 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.
Roadside Emergencies
294
2012 Flex(471)
Owners Guide, 1st Printing
USA(fus)
Page 302 of 405

WARNING:When a wheel is installed, always remove any
corrosion, dirt or foreign materials present on the mounting
surfaces of the wheel or the surface of the wheel hub, brake drum or
brake disc that contacts the wheel. Ensure that any fasteners that
attach the rotor to the hub are secured so they do not interfere with
the mounting surfaces of the wheel. Installing wheels without correct
metal-to-metal contact at the wheel mounting surfaces can cause the
wheel nuts to loosen and the wheel to come off while the vehicle is in
motion, resulting in loss of control.
Note:Inspect the wheel pilot hole
(1) and mounting surface prior to
installation. Remove any visible
corrosion or loose particles.
RUNNING OUT OF FUEL
If you have run out of fuel and need to refill the vehicle with a portable
fuel container, seeRunning out of fuelin theMaintenance and
Specificationschapter for proper fuel filling method using a portable
fuel container and the included fuel filler funnel.Do notinsert the
nozzle of portable fuel containers or any type of aftermarket funnels into
the Easy Fuel“no cap” fuel system as it can be damaged. You must use
the included funnel in such circumstances.
WARNING:Do not insert the nozzle of portable fuel containers
or aftermarket funnels into the Easy Fuelsystem. This could
damage the fuel system and its seal, and may cause fuel to run onto
the ground instead of filling the tank, all of which could result in
serious personal injury.
JUMP STARTING
WARNING:The gases around the battery can explode if
exposed to flames, sparks, or lit cigarettes. An explosion could
result in injury or vehicle damage.
Roadside Emergencies
302
2012 Flex(471)
Owners Guide, 1st Printing
USA(fus)
Page 303 of 405

WARNING:Batteries contain sulfuric acid which can burn skin,
eyes and clothing, if contacted.
Do not attempt to push-start your automatic transmission
vehicle. Automatic transmissions do not have push-start
capability. Attempting to push-start a vehicle with an automatic
transmission may cause transmission damage.
Preparing your vehicle
When the battery is disconnected or a new battery is installed, the
automatic transmission must relearn its shift strategy. As a result, the
transmission may have firm and/or soft shifts. This operation is
considered normal and will not affect function or durability of the
transmission. Over time, the adaptive learning process will fully update
transmission operation.
1.Use only a 12–volt supply to start your vehicle.
2. Do not disconnect the battery of the disabled vehicle as this could
damage the vehicle’s electrical system.
3. Park the booster vehicle close to the hood of the disabled vehicle
making sure the two vehiclesdo nottouch. Set the parking brake on
both vehicles and stay clear of the engine cooling fan and other moving
parts.
4. Check all battery terminals and remove any excessive corrosion before
you attach the battery cables. Ensure that vent caps are tight and level.
5. Turn the heater fan on in both vehicles to protect from any electrical
surges. Turn all other accessories off.
Connecting the jumper cables
Note:In the illustration, the vehicle on the bottom is used to designate
the assisting (boosting) battery.
Roadside Emergencies
303
2012 Flex(471)
Owners Guide, 1st Printing
USA(fus)
Page 304 of 405

1. Connect the positive (+) jumper
cable to the positive (+) terminal of
the discharged battery.
2. Connect the other end of the
positive (+) cable to the positive
(+) terminal of the assisting battery.
3. Connect the negative (-) cable to
the negative (-) terminal of the
assisting battery.
4. Make the final connection of the
negative (-) cable to an exposed
metal part of the stalled vehicle’s
engine, away from the battery and
the carburetor/fuel injection system.
Note:Do not attach the negative (-) cable to fuel lines, engine rocker
covers, the intake manifold or electrical components as grounding points.
WARNING:Do not connect the end of the second cable to the
negative (-) terminal of the battery to be jumped. A spark may
cause an explosion of the gases that surround the battery.
Ensure that the cables are clear of fan blades, belts, moving parts of both
engines, or any fuel delivery system parts.
Jump starting
1. Start the engine of the booster vehicle and run the engine at
moderately increased speed.
2. Start the engine of the disabled vehicle.
3. Once the disabled vehicle has been started, run both engines for an
additional three minutes before disconnecting the jumper cables.
Removing the jumper cables
Remove the jumper cables in the reverse order that they were
connected.
+–
+–
2
3
14
Roadside Emergencies
304
2012 Flex(471)
Owners Guide, 1st Printing
USA(fus)
Page 305 of 405
Note:In the illustration, the vehicle on the bottom is used to designate
the assisting (boosting) battery.
1. Remove the jumper cable from
the ground metal surface.
2. Remove the jumper cable on the
negative (-) terminal of the booster
vehicle’s battery.
3. Remove the jumper cable from
the positive (+) terminal of the
booster vehicle’s battery.
4. Remove the jumper cable from
the positive (+) terminal of the
disabled vehicle’s battery.
After the disabled vehicle has been started and the jumper cables
removed, allow it to idle for several minutes so the engine computer can
relearn its idle conditions.
+–
+–
DA
B
C
4D1
2
3
Roadside Emergencies
305
2012 Flex(471)
Owners Guide, 1st Printing
USA(fus)
Page 324 of 405

SERVICE RECOMMENDATIONS
To help you service your vehicle, we providescheduled maintenance
informationwhich makes tracking routine service easy.
If your vehicle requires professional service, your authorized dealer can
provide the necessary parts and service. Check yourWarranty Guideto
find out which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Motorcraftparts are designed and built to
provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
•Do not work on a hot engine.
•Make sure that nothing gets caught in moving parts.
•Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
•Keep all open flames and other burning material (such as cigarettes)
away from the battery and all fuel related parts.
Working with the engine off
1. Set the parking brake and shift to P (Park).
2. Turn off the engine and remove the key.
3. Block the wheels.
Working with the engine on
WARNING:To reduce the risk of vehicle damage and/or
personal burn injuries, do not start your engine with the air
cleaner removed and do not remove it while the engine is running.
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
Maintenance and Specifications
324
2012 Flex(471)
Owners Guide, 1st Printing
USA(fus)
Page 326 of 405
IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
3.5L V6 engine
1. Power steering fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery
5. Power distribution box
6. Air filter assembly
7. Automatic transmission fluid dipstick
8. Engine oil dipstick
9. Engine oil filler cap
10. Windshield washer fluid reservoir
Maintenance and Specifications
326
2012 Flex(471)
Owners Guide, 1st Printing
USA(fus)