key LINCOLN MKZ HYBRID 2015 Service Manual

GENERAL INFORMATION
WARNINGS
Extended idling at high engine speeds
can produce very high temperatures
in the engine and exhaust system, creating
the risk of fire or other damage. Do not park, idle or drive your vehicle
on dry grass or other dry ground cover.
The emission system heats up the engine
compartment and exhaust system, creating
the risk of fire. Do not start the vehicle in a closed
garage or in other enclosed areas.
Exhaust fumes can be toxic. Always open
the garage door before you start the vehicle. If you smell exhaust fumes inside your
vehicle, have your vehicle checked by
an authorized dealer immediately. Do not
drive your vehicle if you smell exhaust fumes. If you disconnect the battery, your vehicle
may exhibit some unusual driving
characteristics for approximately 5 miles (8
kilometers) after you reconnect it. This is
because the engine management system
must realign itself with the engine. You can
disregard any unusual driving characteristics
during this period.
The powertrain control system meets all
Canadian interference-causing equipment
standard requirements regulating the
impulse electrical field or radio noise.
When you start the vehicle, avoid pressing
the accelerator pedal before and during
operation. Only use the accelerator pedal
when you have difficulty starting the vehicle.
KEYLESS STARTING
Note:
The keyless starting system may not
function if the key is close to metal objects
or electronic devices such as cellular
phones.
Note: A valid key must be located inside
your vehicle to switch the ignition on and
start the vehicle. Ignition Modes
163
MKZ Hybrid (), enUSA Starting and Stopping the EngineE164319

The keyless starting system has three
modes:
•
Off: Turns the ignition off.
• Without applying the brake pedal,
press and release the button once
when the ignition is in the on mode,
or when the vehicle is running but is
not moving.
• On:
All electrical circuits are operational
and the warning lamps and indicators
illuminate.
• Without applying the brake pedal,
press and release the button once.
• Start:
Starts the vehicle. The engine may
not start when the vehicle starts.
• Press the brake pedal, and then press
the button until the vehicle starts. An
indicator light on the button
illuminates when then ignition is on
and when the vehicle starts. STARTING A GASOLINE ENGINE
When the engine starts for the first time on
your drive, the idle speed increases, this
helps to warm up the engine. If the engine
idle speed does not slow down automatically,
have your vehicle checked by an authorized
dealer.
Note:
You can crank the engine for a total
of 60 seconds (without the engine starting)
before the starting system temporarily
disables. The 60 seconds does not have to
be all at once. For example, if you crank the
engine three times for 20 seconds each time,
without the engine starting, you reached the
60-second time limit. A message appears in
the information display alerting you that you
exceeded the cranking time. You cannot
attempt to start the engine for at least 15
minutes. After 15 minutes, you are limited to
a 15-second engine cranking time. You need
to wait 60 minutes before you can crank the
engine for 60 seconds again. Before starting the vehicle, check the
following:
•
Make sure all occupants have fastened
their safety belts.
• Make sure the headlamps and electrical
accessories are off.
• Make sure the parking brake is on.
• Put the transmission in
P .
Note: Do not touch the accelerator pedal.
1. Fully press the brake pedal.
2. Press the button.
Note: The green ready indicator illuminates
letting you know that the vehicle is ready for
driving. Since your vehicle is equipped with
a silent key start, the engine may not start
at the time of the vehicle start.
See Hybrid
Electric Vehicle (page 168).
The system does not function if:
• The key frequencies are jammed.
• The key battery has no charge.
If you are unable to start the vehicle, do the
following:
164
MKZ Hybrid (), enUSA Starting and Stopping the Engine

1. Remove the rubber covering (A) in the
cupholder. Place the remote in the
backup slot (B) at the bottom of the
cupholder.
2. With the key in this position, press the brake pedal, then the START button to
switch the ignition on and start your
vehicle.
Fast Restart
The fast restart feature allows you to restart
the vehicle within 20 seconds of switching
it off, even if a valid key is not present. Within 20 seconds of switching the vehicle
off, press the brake pedal and press the
button. After 20 seconds have expired, you
can no longer restart the vehicle without the
key present inside your vehicle.
Once the vehicle has started, it remains
running until you press the button, even if
the system does not detect a valid key. If you
open and close a door while the vehicle is
running, the system searches for a valid key.
You cannot restart the vehicle if the system
does not detect a valid key within 20
seconds.
Automatic Shutdown
This feature automatically shuts down the
vehicle if it has been idling for an extended
period. The ignition also turns off in order to
save battery power. Before the vehicle shuts
down, a message appears in the information
display showing a timer counting down from
30 seconds. If you do not intervene within
30 seconds, the vehicle shuts down. Another
message appears in the information display
to inform you that the vehicle has shut down
in order to save fuel. Start your vehicle as
you normally do.Automatic Shutdown Override
Note:
You cannot permanently switch off the
automatic shutdown feature. When you
switch it off temporarily, it turns on at the
next ignition cycle.
You can stop the shutdown, or reset the
timer, at any point before the 30-second
countdown has expired by doing any of the
following:
• You can reset the timer by interacting
with your vehicle (such as pressing the
brake pedal or accelerator pedal).
• You can temporarily switch off the
shutdown feature any time the ignition is
on (for the current ignition cycle only).
Use the information display to do so. See
Information Displays (page 109).
• During the countdown before shutdown,
you are prompted to press OK or RESET
(depending on your type of information
display) to temporarily switch the feature
off (for the current ignition cycle only).
165
MKZ Hybrid (), enUSA Starting and Stopping the EngineE155835

HYBRID ELECTRIC VEHICLE
This hybrid vehicle combines electric and
gasoline propulsion to provide performance
and efficiency. It requires no special fuels
and you never have to plug it in.
Note:
You may notice higher engine speeds
upon start-up. This temporary condition is
normal and necessary to heat up the cabin
and minimize emissions. Starting: Switch the ignition on
while your transmission is in park
(P). The green ready indicator light
will appear in the instrument cluster, letting
you know that the vehicle is ready for driving.
The engine may not start because this
vehicle is equipped with silent key start. This
fuel saving feature allows your vehicle to be
ready to drive without requiring the gas
engine to be running. This indicator will
remain on while the vehicle is on, whether the engine is running or not to indicate the
vehicle is capable of movement (using its
electric motor, engine, or both). Typically, the
engine will not start unless the vehicle is
cold, you make a climate control change, or
you press the accelerator.
Driving:
The gas engine automatically starts
and stops to provide power when needed
and to save fuel when not needed. While
coasting at low speeds, coming to a stop, or
standing, the gas engine normally shuts
down and the vehicle operates in
electric-only mode. Conditions that may
cause the engine to start up or remain
running include:
• Considerable vehicle acceleration.
• Vehicle speed above 85 mph (137 km/h)
However, the maximum speed for
electric–only operation may be lower
while driving in hot temperatures or on
hilly terrain.
• Ascending a hill.
• Charge level of high voltage battery is
low. •
Very high or low outside temperature (to
provide system cooling or heating).
• Engine not warm enough to provide
passenger requested cabin temperature.
Stopping:
The gas engine may shut off to
conserve fuel as you come to a stop.
Restarting the vehicle is not required. Simply
step on the accelerator when you are ready
to drive.
Transmission Operation:
Due to the
technologically advanced,
electronically-controlled continuously
variable transaxle, you will not feel shift
changes like those of a non-hybrid vehicle.
Note: Since engine speed is controlled by
the transmission, it may seem elevated at
times. This is normal hybrid operation and
helps deliver fuel efficiency and
performance.
Neutral:
It is not recommended to idle the
vehicle in neutral (N) for an extended period
of time because this will discharge your high
voltage battery and decrease fuel economy.
The engine will not start, and cannot provide
power to the hybrid system in neutral (N).
168
MKZ Hybrid (), enUSA Unique Driving CharacteristicsE144692

Low Gear: Low gear (L) is designed to mimic
the enhanced engine braking available in
non-hybrid vehicles. Low gear will produce
high engine speeds to provide necessary
engine braking. This is normal and will not
damage your vehicle. In low gear, the gas
engine will remain on more often than in
drive (D).
Unique Hybrid Operating Characteristics
Your vehicle behaves differently compared
to a non-hybrid. Here is a description of the
major differences:
Battery:
Your Hybrid is equipped with a high
voltage battery. A cool battery ensures
battery life and provides the best possible
performance. Your hybrid high voltage
battery may periodically re-condition itself to
ensure maximum efficiency. You may notice
slight changes in driveability during this
process, but it is an important part of your
hybrid's high voltage battery optimization
features. Cabin air cools the high voltage battery by
pulling air through vents in the rear package
tray. Avoid placing objects on the package
tray which could block air flow through the
vents.
If you leave your vehicle inoperative for over
31 days, it may be necessary to jumpstart the
vehicle.
See Roadside Emergencies (page
252).
Engine:
The engine speed in your hybrid is
not directly tied to your vehicle speed. Your
vehicle's engine and transmission are
designed to deliver the power you need at
the most efficient engine speed. During
heavy accelerations, your hybrid may reach
high engine speeds (up to 6000 RPM).
In prolonged mountainous driving, you may
see the engine tachometer changing without
your input. This is intentional and maintains
the battery charge level. You may also notice
during extended downhill driving that your
engine continues to run instead of shutting
off. During this engine braking, the engine stays
on, but it is not using any fuel. You may also
hear a slight whine or whistle when operating
your vehicle. This is the normal operation of
the electric generator in the hybrid system.
During certain events (such as vehicle
servicing) your low voltage 12-volt battery
may become disconnected or disabled. Once
the battery is reconnected and after driving
the vehicle, the engine may continue to
operate for three to five seconds after the
key is turned to off. This is a normal
condition.
Braking:
Your hybrid is equipped with
standard hydraulic braking and regenerative
braking. Regenerative braking is performed
by your transmission and it captures brake
energy and stores it in your high voltage
battery.
Driving to optimize fuel economy
Note: Having your engine running is not
always an indication of inefficiency. In some
cases, it is actually more efficient than
driving in electric mode.
169
MKZ Hybrid (), enUSA Unique Driving Characteristics

Frequently asked questions
Answer
Question
The high voltage battery is electrically isolated from the rest of the
vehicle when the key is off. When you turn the key to on, high voltage
contactors inside the battery are closed to make the electricity avail-
able to the motor/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 will determine if an engine start is requiredat key-on. Silent key start will start 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 stays on for an extended amountof time when you first start it. One common reason is to ensure 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?
The engine is required to turn on above this speed to protect thetransmission hardware.
Why does my engine never shut down above 85 mph (137 km/h)?
In order to ensure that the climate control system can begin heatingthe cabin or defrosting the windshield as soon as a driver requests it, the engine coolant temperature has to be kept sufficiently hot.
Keeping the engine on is required to maintain the correct minimum temperature.
Why does my engine stay on when it is extremely cold outside?
171
MKZ Hybrid (), enUSA Unique Driving Characteristics

•
To start the vehicle with a keyless
ignition, just start the engine. Crank time
will be longer than usual.
• Normally, adding 1 gallon (3.8 liters) of
fuel is enough to restart the vehicle. If the
vehicle is out of fuel and on a steep
grade, more than 1 gallon (3.8 liters) may
be required.
• The service engine soon indicator may
come on. Refilling With a Portable Fuel Container WARNINGS
Do not insert the nozzle of portable
fuel containers or aftermarket funnels
into the capless fuel system. This could
damage the fuel system and its seal, and
may cause fuel to run onto the ground
instead of filling the tank, which could result
in serious personal injury. Do not try to pry open or push open
the capless fuel system with foreign
objects. This could damage the fuel system
and its seal and cause injury to you or others. Note:
Do not use aftermarket funnels; they
will not work with the capless fuel system
and can damage it. The included funnel has
been specially designed to work safely with
your vehicle.
When filling the vehicle ’s fuel tank from a
portable fuel container, use the funnel
included with the vehicle.
176
MKZ Hybrid (), enUSA Fuel and Refueling

ignition key to the on position for 15 seconds
without cranking the engine. If the service
engine soon indicator blinks eight times, it
means that the vehicle is not ready for I/M
testing; if the service engine soon indicator
stays on solid, it means that the vehicle is
ready for I/M testing.
The OBD-II system monitors the emission
control system during normal driving. A
complete check may take several days. If the
vehicle is not ready for I/M testing, you may
need to perform the following driving cycle
consisting of mixed city and highway driving:
Drive on an expressway or highway for a
steady 15 minutes, followed by 20 minutes
of stop-and-go driving with at least four
30-second idle periods.
Allow the vehicle to sit for at least eight hours
without starting the engine. Then, start the
engine and complete the above driving
cycle. The engine must warm up to its normal
operating temperature. Once started, do not
turn off the engine until the above driving
cycle is complete. If the vehicle is still not
ready for I/M testing, you will have to repeat
the above driving cycle.
183
MKZ Hybrid (), enUSA Fuel and Refueling

3. If your vehicle is not powered after this
sequence, repeat steps 1 and 2 up to two
more times.
For vehicles equipped with a push button
start system:
1. Press the START/STOP button to turn
ignition off.
2. Press the brake pedal and press the START/STOP
button.
3. If your vehicle is not powered after this sequence, repeat steps 1 and 2 up to two
more times.
Note: During this process, your vehicle will
detect if the electrical system is safe and
reactivate. Once your vehicle determines
the electrical system safe, you can start your
vehicle as you would normally by either
turning the ignition key or by pressing the
brake in combination with the START/STOP
button.
Note: In the event your vehicle does not
reactivate after the third key cycle, contact
an authorized dealer.
186
MKZ Hybrid (), enUSA High Voltage Battery

PARKING AID (If Equipped)
WARNINGS
To help avoid personal injury, please
read and understand the limitations of
the system as contained in this section.
Sensing is only an aid for some (generally
large and fixed) objects when moving in
reverse on a flat surface at parking speeds.
Traffic control systems, inclement weather,
air brakes, and external motors and fans may
also affect the function of the sensing
system; this may include reduced
performance or a false activation. To help avoid personal injury, always
use caution when in reverse (R) and
when using the sensing system. This system is not designed to prevent
contact with small or moving objects.
The system is designed to provide a warning
to assist the driver in detecting large
stationary objects to avoid damaging the
vehicle. The system may not detect smaller
objects, particularly those close to the
ground. WARNINGS
Certain add-on devices such as large
trailer hitches, bike or surfboard racks
and any device that may block the normal
detection zone of the system, may create
false beeps. Note:
Keep the sensors, located on the
bumper or fascia, free from snow, ice and
large accumulations of dirt. If the sensors
are covered, the system’ s accuracy can be
affected. Do not clean the sensors with sharp
objects.
Note: If your vehicle sustains damage to the
bumper or fascia, leaving it misaligned or
bent, the sensing zone may be altered
causing inaccurate measurement of
obstacles or false alarms.
Note: If your vehicle is equipped with
MyKey®, it is possible to prevent turning the
sensing system off. See MyKey™ (page 59).
The sensing system warns the driver of
obstacles within a certain range of the
bumper area. The system turns on
automatically whenever the ignition is
switched on. When receiving a detection warning, the
radio volume is reduced to a predetermined
level. After the warning goes away, the radio
volume returns to the previous level.
The system can be switched off through the
information display menu or from the pop-up
message that appears once the transmission
is shifted into reverse (R) or a front obstacle
is detected. See General Information (page
109
).
If a fault is present in the system, a warning
message appears in the information display
and does not allow the driver to switch the
faulted system on.
See Information
Messages (page 120).
201
MKZ Hybrid (), enUSA Parking Aids