HYBRID VEHICLE FREQUENTLY ASKED QUESTIONS
Answer
Question
The high voltage battery is electrically isol-ated from the rest of the vehicle when the
key is off. When you switch the key on, high voltage contactors inside the battery are
closed to make the electricity available to the motor and generator and enable the
vehicle to drive. The clicks are the sound of these contactors as they close and open during start up and shut down.
What are the series of clicks from the cargo
area when I first turn the key in the ignition?
The vehicle's computer determines if an
engine start is required at key-on. Silent key starts the engine if it is necessary for cabin
heating, windshield defrost, or if the outside temperature is low.
Why does the engine sometimes start at
key-on?
There are several reasons the engine stayson for an extended amount of time when
you first start it. One common reason is to
make sure that the emissions components are warm enough to minimize tailpipe
emissions. As the climate gets cooler, this engine-on time is extended.
Why does it take a long time before the
engine shuts down?
In order to make sure that the climate
control system can begin heating the cabin
or defrosting the windshield as soon as you request it, the engine coolant temperature
has to be kept sufficiently hot. Keeping the
engine on is required to maintain the correct coolant temperature.
Why does my engine stay on when it is
extremely cold outside?
Your hybrid vehicle can use E15 fuel (15%ethanol, 85% gasoline), but you couldnotice slightly reduced fuel economy
because ethanol contains less energy per
gallon than gasoline. Your hybrid vehicle is not designed to use E85 (85% ethanol).
Can I put E15 or E85 in my vehicle, and how
will it affect my fuel economy?
The high voltage battery system is designedto last the life of the vehicle and requires no maintenance.
How long will my high voltage battery last?
Does it need maintenance?
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Explorer (CTW) Police, Canada/United States of America, Police, enUSA, Edition date: 202007, Second-Printing Unique Driving Characteristics - Hybrid Electric Vehicle
(HEV)
REDUCED ENGINE
PERFORMANCE
WARNING: If you continue to drive
your vehicle when the engine is
overheating, the engine could stop
without warning. Failure to follow this
instruction could result in the loss of
control of your vehicle.
If the engine coolant temperature gauge
needle moves to the upper limit position,
the engine is overheating. See Gauges
(page 78).
You must only drive your vehicle for a short
distance if the engine overheats. The
distance you can travel depends on
ambient temperature, vehicle load and
terrain. The engine continues to operate
with limited power for a short period of
time.
If the engine temperature continues to rise,
the fuel supply to the engine reduces. The
air conditioning switches off and the engine
cooling fan operates continually.
1. Gradually reduce your speed and stop your vehicle as soon as it is safe to do
so.
2. Immediately switch the engine off to prevent severe engine damage.
3. Wait for the engine to cool down.
4. Check the coolant level. See
Engine
Coolant Check (page 226).
5. Have your vehicle checked as soon as possible.
ECONOMICAL DRIVING
Fuel economy is affected by several things
such as how you drive, the conditions you
drive under and how you maintain your
vehicle. You may improve your fuel economy by
keeping these things in mind:
•
Accelerate and slow down in a smooth,
moderate fashion.
• Drive at steady speeds.
• Anticipate stops; slowing down may
eliminate the need to stop.
• Combine errands and minimize
stop-and-go driving.
• Close the windows for high-speed
driving.
• Drive at reasonable speeds (traveling
at
55 mph (88 km/h) uses 15% less
fuel than traveling at 65 mph
(105 km/h)).
• Keep the tires properly inflated and use
only the recommended size.
• Use the recommended engine oil.
• Perform all regularly scheduled
maintenance.
Avoid these actions; they reduce your fuel
economy:
• Sudden accelerations or hard
accelerations.
• Revving the engine before switching it
off.
• Idle for periods longer than one minute.
• Warm up your vehicle on cold
mornings.
• Use the air conditioner or front
defroster.
• Use the speed control in hilly terrain.
• Rest your foot on the brake pedal while
driving.
• Drive a heavily loaded vehicle or tow a
trailer.
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Explorer (CTW) Police, Canada/United States of America, Police, enUSA, Edition date: 202007, Second-Printing Driving Hints
Protected Component
Fuse Rating
Fuse or Relay
Number
Body control module - battery power in
feed 1.
40A
1
Power outlet main console bin.
20A
2
Body control module - battery power in
feed 2.
40A
3
Fuel pump.
30A
4
Powertrain control module keep alive
power.
5A
5
Powertrain control module power.
20A
6
Canister vent solenoid.
20A
7
Evaporative leak control module.
Exhaust gas heat recovery (hybrid electric
vehicle).
Tank pressure control valve (hybrid electric
vehicle).
Vapor blocking valve.
Universal exhaust gas oxygen 11.
Universal exhaust gas oxygen 21.
Catalyst monitor sensor 12.
Catalyst monitor sensor 22.
Fuel flap door (hybrid electric vehicle).
Cooling fan relay coil.
20A
8
Battery interrupt box.
Transmission oil pump.
Auxiliary coolant pump.
Engine coolant bypass valve.
Electric A/C compressor (hybrid electric
vehicle).
Active grille shutters.
Ignition coils.
20A
9
Front blower motor relay.
40A
13
Transmission oil pump.
15A
14
A/C compressor variable clutch.
Auxiliary pumps (hybrid electric vehicle).
Electric A/C compressor (hybrid electric
vehicle).
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Explorer (CTW) Police, Canada/United States of America, Police, enUSA, Edition date: 202007, Second-Printing Fuses
Protected Component
Fuse Rating
Fuse or Relay
Number
Not used (spare).
15A
96
Electric AC (hybrid electric vehicle).
10A
97
High voltage positive temperature coeffi-
cient heater (hybrid electric vehicle).
Traction battery coolant proportional valve
(hybrid electric vehicle).
10A
98
Rear power lug.
50A
103
Rear power lug.
50A
104
Not used (spare).
40A
105
B+ feed.
40A
106
B+ feed.
40A
107
Spot lamp.
20A
108
Passenger door module.
30A
109
Body control module voltage quality
monitor feed.
30A
111
Not used (spare).
20A
112
Not used (spare).
50A
114
B+ feed.
20A
115
Start access circuit.
5A
116
Run/start feed.
20A
118
Port fuel injectors.
15A
120
Rain sensor.
5A
124
USB smart charger 1.
5A
125
B+ feed.
20A
127
Rear traffic advisor.
Visor control module.
Not used (spare).
15A
128
Not used.
—
131
Not used.
—
133
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Explorer (CTW) Police, Canada/United States of America, Police, enUSA, Edition date: 202007, Second-Printing Fuses
Protected Component
Fuse Rating
Fuse or Relay
Number
Delay accessory power.
10A
134
Not used (spare).
20A
136
USB smart charger 2.
5A
139
Traffic cam.
5A
142
Battery electronic control module.
15A
146
Left-hand headlamp module.
30A
148
Right-hand headlamp module.
30A
149
B+ feed.
40A
150
Transmission control module (hybrid
electric vehicle).
25A
155
DC/DC converter (hybrid electric vehicle).
15A
159
B+ feed.
10A
160
Front warning lights.
Strobes.
Low voltage service disconnect.
20A
168
Coolant pump (hybrid electric vehicle).
10A
169
Traction battery coolant pump (hybrid
electric vehicle).
10A
170
Pedestrian sounder (hybrid electric
vehicle).
Not used (spare).
10A
177
Note: Spare fuse amperage may vary.
Passenger Compartment Fuse
Panel
The fuse panel is under the instrument
panel to the left of the steering column. Note:
It may be easier to access the fuse
panel if you remove the finish trim piece.
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Explorer (CTW) Police, Canada/United States of America, Police, enUSA, Edition date: 202007, Second-Printing Fuses
UNDER HOOD OVERVIEW - 3.0L
Battery. See Changing the 12V Battery (page 231).
A
Engine oil filler cap.
See Engine Oil Check (page 222).
B
Engine oil dipstick.
See Engine Oil Dipstick (page 222).
C
Brake fluid reservoir.
See Brake Fluid Check (page 230).
D
Engine compartment fuse box.
See Fuses (page 208).
E
Engine coolant reservoir.
See Engine Coolant Check (page 226).
F
Air filter assembly. See
Changing the Engine Air Filter (page 224).
G
Washer fluid reservoir. See
Washer Fluid Check (page 235).
H
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Explorer (CTW) Police, Canada/United States of America, Police, enUSA, Edition date: 202007, Second-Printing MaintenanceE288092
UNDER HOOD OVERVIEW - 3.3L
Battery. See Changing the 12V Battery (page 231).
A.
Engine oil filler cap.
See Engine Oil Check (page 222).
B.
Engine oil dipstick.
See Engine Oil Dipstick (page 222).
C.
Brake fluid reservoir.
See Brake Fluid Check (page 230).
D.
Engine compartment fuse box.
See Fuses (page 208).
E.
Engine coolant reservoir cap.
See Engine Coolant Check (page 226).
F.
Air filter assembly. See
Changing the Engine Air Filter (page 225).
G.
Inverter system controller coolant reservoir cap- HEV only.
H.
Washer fluid reservoir. See
Washer Fluid Check (page 235).
I.
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Explorer (CTW) Police, Canada/United States of America, Police, enUSA, Edition date: 202007, Second-Printing MaintenanceE288595
8. Install the air filter housing cover.
9. Engage the clips to secure the air filter
housing cover to the air filter housing.
10. Reconnect the boot to the air filter housing cover and torque to 3.69 lb.ft
(5 Nm).
ENGINE COOLANT CHECK WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury. WARNING:
Do not put coolant in
the windshield washer reservoir. If
sprayed on the windshield, coolant could
make it difficult to see through the
windshield. WARNING:
To reduce the risk of
personal injury, make sure the engine is
cool before unscrewing the coolant
pressure relief cap. The cooling system
is under pressure. Steam and hot liquid
can come out forcefully when you loosen
the cap slightly. WARNING:
Do not add coolant
further than the MAX mark.
When the engine is cold, check the
concentration and level of the coolant at
the intervals listed in the scheduled
maintenance information. See Scheduled
Maintenance
(page 326).
Note: Make sure that the coolant level is
between the
MIN and MAX marks on the
coolant reservoir. Note:
Coolant expands when it is hot. The
level may extend beyond the
MAX mark.
Maintain coolant concentration within
48% to 50%, which equates to a freeze
point between
-29°F (-34°C) and -35°F
(-37°C). Coolant concentration should be
checked using a refractometer. We do not
recommend the use of hydrometers or
coolant test strips for measuring coolant
concentration.
Adding Coolant WARNING:
Do not add engine
coolant when the engine is on or the
cooling system is hot. Failure to follow
this instruction could result in personal
injury. WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury. WARNING:
Do not put coolant in
the windshield washer reservoir. If
sprayed on the windshield, coolant could
make it difficult to see through the
windshield.
Note: Do not use stop leak pellets, cooling
system sealants, or non-specified additives
as they can cause damage to the engine
cooling or heating systems. Resulting
component damage may not be covered by
the vehicle Warranty.
Note: Automotive fluids are not
interchangeable.
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Explorer (CTW) Police, Canada/United States of America, Police, enUSA, Edition date: 202007, Second-Printing Maintenance