2019 LINCOLN MKZ HYBRID brake

Protected ComponentFuse RatingFuse or Relay Number
Vacuum pump #2 relay.–39
Fuel pump relay.–40
Horn relay.–41
Not used.–42
Fuel door motor.10A243
Not used.–44
Vacuum pump monitor.5A245
Not used (spare).10A246
Brake on/off switch.10A347
Horn.20A248
Air flow monitor.5A249
Battery energy control module.15A250
Hybrid content vehicle power 1.15A351Hybrid powertrain control module.
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Fuses

Protected ComponentFuse RatingFuse or Relay Number
Anti-lock brake system valves.30A169
Passenger seat.30A170
Not used (spare).50A171
Panoramic roof #1.30A172Moonroof.
Not used (spare).20A273
Driver seat module.30A174
Not used.-75
e-Shifter.20A176
Front climate controlled seats.30A177
Not used.-78
Blower motor.40A279
Power decklid.30A180
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Fuses

Protected ComponentFuse RatingFuse or Relay Number
Inverter.40A181
Anti-lock brake system pump.60A282
Wiper motor #1.25A183
Not used.-84
Panoramic roof #2.30A185
1 M Case fuse.2 J Case fuse.
Passenger Compartment Fuse Panel
The fuse panel is under the instrument panelto the left of the steering column.
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Fuses

GENERAL INFORMATION
Have your vehicle serviced regularly to helpmaintain its roadworthiness and resale value.There is a large network of authorizeddealers that are there to help you with theirprofessional servicing expertise. We believethat their specially trained technicians arebest qualified to service your vehicle properlyand expertly. They are supported by a widerange of highly specialized tools developedspecifically for servicing your vehicle.
If your vehicle requires professional service,an authorized dealer can provide thenecessary parts and service. Check yourwarranty information to find out which partsand services are covered.
Use only recommended fuels, lubricants,fluids and service parts conforming tospecifications. Motorcraft® parts aredesigned and built to provide the bestperformance in your vehicle.
Precautions
•Do not work on a hot engine.
•Make sure that nothing gets caught inmoving parts.
•Do not work on a vehicle with the enginerunning in an enclosed space, unless youare sure you have enough ventilation.
•Keep all open flames and other burningmaterial (such as cigarettes) away fromthe battery and all fuel related parts.
Working with the Engine Off
1. Set the parking brake and shift thetransmission to park (P).
2. Switch off the engine.
3. Block the wheels.
Working with the Engine On
WARNING: To reduce the risk ofvehicle damage and personal burn injuries,do not start your engine with the air cleanerremoved and do not remove it while theengine is running.
1. Set the parking brake and shift thetransmission to park (P).
2. Block the wheels.
OPENING AND CLOSING THE
HOOD
Opening the Hood
1. Inside the vehicle, pull the hood releasehandle under the left-hand side of theinstrument panel.
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MaintenanceE142457

Engine coolant reservoir. SeeEngine Coolant Check (page 302).A
Engine oil filler cap. See EngineOil Check (page 301).B
Air filter. See Changing theEngine Air Filter (page 312).C
Brake fluid reservoir. See BrakeFluid Check (page 307).D
Engine compartment fuse box.See Fuses (page 279).E
Inverter system controller.F
Inverter system controller coolantreservoir. See Engine CoolantCheck (page 302).
G
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MaintenanceA
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EBCD
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If you drive in extremely hot climates:
•You can decrease the coolantconcentration to 40%.
•Coolant concentrations below 40%decrease the freeze and corrosionprotection characteristics of the coolantand may cause engine damage.
Vehicles driven year-round in non-extremeclimates should use prediluted coolant foroptimum cooling system and engineprotection.
Coolant Change
At specific mileage intervals, as listed in thescheduled maintenance information, thecoolant should be changed. Add predilutedcoolant approved to the correct specification.See Capacities and Specifications (page353).
Fail-Safe Cooling
Fail-safe cooling allows you to temporarilydrive your vehicle before any incrementalcomponent damage occurs. The fail-safedistance depends on ambient temperature,vehicle load and terrain.
How Fail-Safe Cooling Works
If the engine begins to overheat, the coolanttemperature gauge moves toward the redzone:
A warning lamp illuminates and amessage may appear in theinformation display.
If the engine reaches a presetover-temperature condition, the engineautomatically switches to alternating cylinderoperation. Each disabled cylinder acts as anair pump and cools the engine.
When this occurs, your vehicle still operates,however:
•Engine power is limited.
•The air conditioning system turns off.
Continued operation increases the enginetemperature, causing the engine tocompletely shut down. Your steering andbraking effort increases in this situation.
When the engine temperature cools, you canre-start the engine. Have your vehiclechecked as soon as possible to minimizeengine damage.
When Fail-Safe Mode Is Activated
WARNING: Fail-safe mode is for useduring emergencies only. Operate yourvehicle in fail-safe mode only as long asnecessary to bring your vehicle to rest in asafe location and seek immediate repairs.When in fail-safe mode, your vehicle will havelimited power, will not be able to maintainhigh-speed operation, and may completelyshut down without warning, potentially losingengine power, power steering assist, andpower brake assist, which may increase thepossibility of a crash resulting in seriousinjury.
WARNING: Never remove the coolantreservoir cap when the engine is running orhot.
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Maintenance

2. Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. If thetemperature does not drop after severalminutes, follow the remaining steps.
3. Switch the engine off and wait for it tocool. Check the coolant level.
4. If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
5. If the coolant level is normal, restart theengine and continue.
AUTOMATIC TRANSMISSION
FLUID CHECK
Note:Transmission fluid should be checkedby an authorized dealer. If required, fluidshould be added by an authorized dealer.
Have an authorized dealer check and changethe transmission fluid at the correct serviceinterval. See Maintenance (page 298). Yourtransmission does not consume fluid.However, the fluid level should be checkedif the transmission is not working properly,(i.e., if the transmission slips or shifts slowly)or if you notice some sign of fluid leakage.
Do not use supplemental transmission fluidadditives, treatments or cleaning agents. Theuse of these materials may affecttransmission operation and result in damageto internal transmission components.
BRAKE FLUID CHECK
WARNING: Do not use any fluid otherthan the recommended brake fluid as thiswill reduce brake efficiency. Use of incorrectfluid could result in the loss of vehiclecontrol, serious personal injury or death.
WARNING: Only use brake fluid froma sealed container. Contamination with dirt,water, petroleum products or other materialsmay result in brake system damage or failure.Failure to adhere to this warning could resultin the loss of vehicle control, seriouspersonal injury or death.
WARNING: Do not allow the fluid totouch your skin or eyes. If this happens, rinsethe affected areas immediately with plentyof water and contact your physician.
WARNING: A fluid level between theMAX and MIN lines is within the normaloperating range and there is no need to addfluid. A fluid level not in the normal operatingrange could compromise the performanceof the system. Have your vehicle checkedimmediately.
To avoid fluid contamination, the reservoircap must remain in place and fully tight,unless you are adding fluid.
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Maintenance

WARNING: For vehicles withAuto-Start-Stop the battery requirement isdifferent. You must replace the battery withone of exactly the same specification.
Your vehicle is fitted with a Motorcraftmaintenance-free battery which normallydoes not require additional water.
When a battery replacement is required, youmust use a recommended replacementbattery that matches the electricalrequirements of the vehicle.
Note:If your vehicle has a battery cover,after cleaning or replacing the battery, makesure you reinstall it.
Note:See an authorized dealer for batteryaccess, testing, or replacement.
To make sure the battery managementsystem works correctly, do not connect anelectrical device ground connection directlyto the battery negative post. This can causeinaccurate measurements of the batterycondition and potential incorrect systemoperation.
Note:If you add electrical accessories orcomponents to the vehicle, it may adverselyaffect battery performance and durability.This may also affect the performance ofother electrical systems in the vehicle.
If you see any corrosion on the battery orterminals, remove the cables from theterminals and clean with a wire brush. Youcan neutralize the acid with a solution ofbaking soda and water.
Because your vehicle’s engine iselectronically-controlled by a computer,some engine control settings are maintainedby power from the battery. Some enginecomputer settings, like the idle trim and fueltrim strategy, optimize the driveability andperformance of the engine. The clock andradio station presets are also maintained inmemory by power from the low-voltagebattery. These settings are erased when atechnician disconnects and connects thelow-voltage battery.
To restore the settings, do the following:
Note:Until you switch the ignition to the onposition, you will receive a message in yourinformation display stating that your vehicleis not in park.
1. Apply the parking brake.
2. Shift into park (P) or neutral (N).
3. Switch off all accessories.
4. Press the brake pedal and start yourvehicle.
5. Run the engine until it reaches normaloperating temperature. While the engineis warming up, complete the following:Reset the clock. See Audio Unit (page368). Reset the power windowsbounce-back feature. See PowerWindows (page 94). Reset the radiostation presets. See Audio Unit (page368).
6. Allow the engine to idle for at least oneminute.
7.Drive the vehicle at least 10 mi (16 km) tocompletely relearn the idle trim and fueltrim strategy.
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Maintenance