check engine LINCOLN AVIATOR 2023 User Guide

Action Message
Displays when you disable the hill descent control mode to cool the brake system. Hill Descent Control Off System Cooling
Displays when hill descent control mode is ready. Hill Descent Control Ready
Displays when you activate the hill descent control mode. Hill Descent Control Active
Hill Start Assist
Action Message
Hill start assist is not available. Have the system checked as soon as possible. See Hill Start
Assist (page 274). Hill Start Assist Not Available
Keys and Intelligent Access
Action Message
A reminder to press the brake while starting your vehicle. To START Press Brake
The key is not detected by the system. No Key Detected
The start stop button is pressed to shut off the engine and an intelligent access key is not
detected inside your vehicle. Restart Now or Key is Needed
Your vehicle is in the accessory ignition state. Full Accessory Power Active
152
Information Displays

Lane Keeping System
Action Message
Displays when the system requires service. Have the system checked as soon as possible. Lane Keeping Sys. Malfunction Service
Required
Check to make sure there are no objects or debris blocking the camera. Have the system
checked if this condition persists. Front Camera Temporarily Not Available
Clean the windshield to improve visibility and allow the camera to properly operate. Front Camera Low Visibility Clean Screen
Displays when the system requires service. Have the system checked as soon as possible. Front Camera Malfunction Service Required
The system requests that you keep your hands on the steering wheel. Keep Hands on Steering Wheel
Maintenance
Action Message
Stop your vehicle as soon as safely possible and turn off the engine. Check the oil level. If
this message stays on or continues to come on with your engine running, have the system
checked as soon as possible. Low Engine Oil Pressure
The engine oil life is low and needs to be changed soon. See General Maintenance
Information (page 579). Change Engine Oil Soon
The engine oil life is low and needs to be changed immediately. See General Maintenance
Information (page 579). Oil Change Required
154
Information Displays

Action Message
The brake fluid level is low. Have the system checked immediately. See Brake Fluid Check
(page 409). Brake Fluid Level Low
The brake system needs servicing. Stop the vehicle in a safe place. Have the system checked
as soon as possible. Check Brake System
The engine coolant temperature is excessively high. Have the system checked immediately. Engine Coolant Over Temperature
The washer fluid is low and needs to be refilled. Washer Fluid Level Low
Indicates that your vehicle is still in Transport mode. This may not allow some features to
properly operate. Have the system checked as soon as possible. Transport Mode Contact Dealer
Indicates that your vehicle is still in Factory mode. This may not allow some features to
properly operate. Have the system checked as soon as possible. Factory Mode Contact Dealer
Informs the driver that the powertrain needs service due to a powertrain concern. Have the
system checked as soon as possible. See Manual
The engine has reduced power to help reduce high engine temperature. Power Reduced to Lower Engine Temp
The brake system has reduced stopping power. Brake Applied Power Reduced
The motor electronics are overheating. Stop your vehicle as soon as safely possible, turn off
your vehicle and let it cool. If the warning stays on or continues to come on, have the system
checked as soon as possible. Motor Coolant Over Temperature
EV functionality is disabled and the engine is running to maintain oil quality. See Plug-In
Hybrid Vehicle Operation (page 219). Engine ON Due to Low Use Normal Operation
155
Information Displays

Park Brake
Action Message
The parking brake is set, the engine is running and you drive your vehicle more than 3 mph
(5 km/h). If the warning stays on after the parking brake is released, have the system checked
as soon as possible. Park Brake Engaged
The electric parking brake is set and a manual release is attempted without the brake pedal
being pressed. To Release: Press Brake and Switch
The electric parking brake is set and an automatic release is attempted but cannot be
performed. Perform a manual release. Park Brake Use Switch to Release
The electric parking brake is set and your vehicle speed exceeds 3 mph (5 km/h). Release
park brake before continued driving. Release Park Brake
The electric parking brake is not fully applied. Park Brake Not Applied
The electric parking brake is not fully released. Park Brake Not Released
The electric parking brake system has been put into a special mode to allow service of the
rear brakes. Have the system checked as soon as possible. Park Brake Maintenance Mode
158
Information Displays

Starting System
Action Message
Displays when starting the vehicle as a reminder to apply the brake. To START Press Brake
Displays when the starter has exceeded its cranking time in attempting to start the vehicle. Cranking Time Exceeded
Displays when the starter is attempting to start the vehicle. Engine Start Pending Please Wait
Displays when the pending start has been cancelled. Pending Start Cancelled
Tire Pressure Monitoring System
Action Message
One or more tires on your vehicle have low tire pressure. See Tire Pressure Monitoring
System (page 447). Tire Pressure Low
The system may require service. If this message stays on or continues to come on, have the
system checked as soon as possible. See Tire Pressure Monitoring System (page 447). Tire Pressure Monitor Fault
The system may require service, or your spare tire is in use. For more information on how the
system operates under these conditions, See Tire Pressure Monitoring System (page 447).
If this message stays on or continues to come on, have the system checked as soon as
possible. Tire Pressure Sensor Fault
161
Information Displays

Transmission
Action Message
You switched the engine off and the gear selector is in any position other than park (P). Shift to Park
The transmission is too cold. Wait for it to warm up before you drive. Transmission Warming Up Please Wait
Displays when you need to press the brake pedal. Press Brake Pedal
The transmission is overheating and needs to cool. Stop in a safe place as soon as it’s
possible. Transmission Over Temperature Stop Safely
Have the system checked as soon as possible. Transmission Service Required
The transmission is overheating and needs to cool. Stop in a safe place as soon as it is
possible. Transmission Too Hot Press Brake
The transmission has limited functionality. Have the system checked as soon as possible. Transmission Limited Function See Manual
A reminder to shift into park (P). In addition, this message is typical after reconnecting or
recharging the battery until you cycle the ignition to the on mode. See Changing the 12V
Battery (page 410). Transmission Not in Park
Displays when there is a concern and the park brake needs to be depressed before exiting
the vehicle. Have the system checked as soon as possible. SHIFT SYS FAULT Confirm Park Brake Apply
Before Exiting the Vehicle
Have the system checked as soon as possible. SHIFT SYS FAULT Service Required
Displays when there is a concern while the vehicle is shifting to park (P). Have the system
checked as soon as possible. SHIFT SYS FAULT Vehicle is Shifting to Park
163
Information Displays

• Without applying the brake pedal, press
and release the button once when the
ignition is in the on mode, or when your
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 your vehicle. The engine may
not start when your vehicle starts.
• Press the brake pedal, and then press
the button for any length of time. An
indicator light on the button illuminates
when the ignition is on and when your
vehicle starts.
STARTING A GASOLINE ENGINE
When you start the engine, the idle speed
increases. This helps to warm up the
engine. If the engine idle speed does not
slow down, have your vehicle checked as
soon as possible.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 your vehicle, check the
following:
• Make sure all occupants have fastened
their seatbelts.
• Make sure the headlamps and electrical
accessories are off.
• Make sure the parking brake is on.
• Make sure the transmission is in park (P).
• Switch the ignition on.
Note:Do not touch the accelerator pedal.Note:You must have your intelligent access
key in your vehicle in order to shift the
transmission out of park (P).
1. Fully press the brake pedal.
2. Press the push button ignition switch.
The system does not function if:
• The passive key frequencies are jammed.
• The key battery has no charge.
If you are unable to start your vehicle, do the
following:
206
Starting and Stopping the Engine

STARTING A HYBRID ELECTRIC
VEHICLE SYSTEM
Before starting your vehicle, check the
following:
• Make sure all occupants fasten their
seatbelt.
• Make sure the headlamps and electrical
accessories are off.
• Make sure the parking brake is on.
• Put the transmission in park (P).
Note:Do not touch the accelerator pedal.
1. Fully press the brake pedal.
2. Press the push button ignition switch.
Note:The green ready indicator illuminates
letting you know that your vehicle is ready
for driving. Since your vehicle comes with a
silent key start, the engine may not start
when your vehicle starts. See Hybrid
Vehicle Operation (page 217).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.
The system does not function if:
• The passive key frequencies are jammed.
• The key battery has no charge.
If you are unable to start your vehicle, do the
following:
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210
Starting and Stopping the Engine

The heater acts as a starting aid by warming
the engine coolant. This allows the climate
control system to respond quickly. The
equipment includes a heater element
(installed in the engine block) and a wire
harness. You can connect the system to a
grounded 120-volt AC electrical source.
We recommend that you do the following for
a safe and correct operation:
• Use a 16-gauge outdoor extension cord
that is product certified by Underwriter’s
Laboratory (UL) or Canadian Standards
Association (CSA). This extension cord
must be suitable for use outdoors, in cold
temperatures, and be clearly marked
Suitable for Use with Outdoor
Appliances. Do not use an indoor
extension cord outdoors. This could
result in an electric shock or become a
fire hazard.
• Use as short an extension cord as
possible.
• Do not use multiple extension cords.• Make sure that when in operation, the
extension cord plug and heater cord plug
connections are free and clear of water.
This could cause an electric shock or fire.
• Make sure your vehicle is parked in a
clean area, clear of combustibles.
• Make sure the heater, heater cord and
extension cord are firmly connected.
• Check for heat anywhere in the electrical
hookup once the system has been
operating for approximately 30 minutes.
• Make sure the system is unplugged and
properly stowed before starting and
driving your vehicle. Make sure the
protective cover seals the prongs of the
block heater cord plug when not in use.
• Make sure the heater system is checked
for proper operation before winter.
Using the Engine Block Heater
The engine block heater receptacle terminals
are located on the left side of the engine
compartment.Make sure the receptacle terminals are clean
and dry prior to use. Clean them with a dry
cloth if necessary.
The heater uses 0.4 to 1.0 kilowatt-hours of
energy per hour of use. The system does not
have a thermostat. It achieves maximum
temperature after approximately three hours
of operation. Using the heater longer than
three hours does not improve system
performance and unnecessarily uses
electricity.
214
Starting and Stopping the Engine

3. Insert the fuel pump nozzle up to the first
notch on the nozzle A. Keep the fuel
pump nozzle resting on the fuel tank filler
pipe.
E139203
A
B
4. Hold the fuel pump nozzle in position B
when refueling. Holding the fuel pump
nozzle in position A can affect the flow
of fuel and shut off the fuel pump nozzle
before the fuel tank is full.
5. Operate the fuel pump nozzle within the
area shown.
E190819081
6. When the nozzle shuts off, wait at least
5 seconds, then slightly raise the fuel
pump nozzle and slowly remove it.
7. Fully close the fuel filler door.Do not attempt to start the engine if you have
filled the fuel tank with incorrect fuel.
Incorrect fuel use could cause damage that
the vehicle Warranty may not cover. See your
authorized dealer immediately.
Refueling System Warning (If Equipped)
If the fuel tank filler valve does not fully close,
a message could appear in the information
display.
Message
Check Fuel Fill Inlet
If the message appears, do the following:
1. Stop your vehicle as soon as it is safe to
do so and switch the engine off.
2. Shift into park (P) or neutral (N).
3. Apply the parking brake.
4. Fully open the fuel filler door.
5. Check the fuel tank filler valve for any
debris that may be restricting its
movement.
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Fuel and Refueling