Lincoln Aviator: Maintenance / 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.

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.

Changing the Engine Air Filter

WARNING: To reduce the risk of vehicle damage and personal burn injuries, do not start your engine with the air cleaner removed and do not remove it while the engine is running...

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...

Other information:

Lincoln Aviator 2020-2026 Service Manual: Description and Operation - High Voltage Battery Charging System - Plug-In Hybrid Electric Vehicle (PHEV) - Component Location


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Lincoln Aviator 2020-2026 Service Manual: Diagnosis and Testing - Parking Aid


Diagnostic Trouble Code (DTC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).   Diagnostic Trouble Code Chart Module   DTC Description Action   APIM C1001:01 Vision System Camera:General Electrical Failure   GO to Pinpoint Test A   APIM C1001:01 Vision System Camera:General Electrical Failure   GO to Pinpoint Test J   APIM C1001:02 Vision System Camera:General Signal Failure   GO to Pinpoint Test A   APIM C1001:1C Vision System Camera:Circuit Voltage Out Of Range   GO to Pinpoint Test A   APIM C1001:4B Vision System Camera:Over Temperature   GO to Pinpoint Test H   APIM C1001:55 Vision System Camera:Not Configured   GO to Pinpoint Test I   APIM C1001:81 Vision System Camera:Invalid Serial Data Received   GO to Pinpoint Test A   APIM C1001:87 Vision System Camera:Missing Message   GO to Pinpoint Test A   IPMB B115E:31 Camera Module:No Signal   GO to Pinpoint Test L   IPMB B115E:49 Camera Module:Internal Electronic Failure   GO to Pinpoint Test T   IPMB B12BE:31 Left Front Camera:No Signal   GO to Pinpoint Test N   IPMB B12BE:49 Left Front Camera:Internal Electronic Failure   GO to Pinpoint Test U   IPMB B12BF:31 Right Front Camera:No Signal   GO to Pinpoint Test O   IPMB B12BF:49 Right Front Camera:Internal Electronic Failure   GO to Pinpoint Test V   IPMB B148E:31 Front Camera:No Signal   GO to Pinpoint Test M   IPMB B148E:49 Front Camera:Internal Electronic Failure   GO to Pinpoint Test W   IPMB B14A5:11 Multi-Camera View Switch:Circuit Short To Ground   GO to Pinpoint Test P   IPMB C1001:78 Vision System Camera:Alignment Or Adjustment Incorrect   GO to Pinpoint Test X   IPMB U0100:00 Lost Communication With ECM/PCM "A":No Sub Type Information   GO to Pinpoint Test Y   IPMB U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module:No Sub Type Information   GO to Pinpoint Test Z   IPMB U0121:87 Lost Communication With Anti-Lock Brake System (ABS) Control Module "A":Missing Message   GO to Pinpoint Test Z   IPMB U0131:00 Lost Communication With Power Steering Control Module:No Sub-Type Information   GO to Pinpoint Test AA   IPMB U0131:87 Lost Communication With Power Steering Control Module "A":Missing Message   GO to Pinpoint Test AA   IPMB U0138:00 Lost Communication with All Terrain Control Module:No Sub Type Information   GO to Pinpoint Test AB   IPMB U0140:00 Lost Communication With Body Control Module:No Sub Type Information   GO to Pinpoint Test AC   IPMB U0146:00 Lost Communication With Gateway "A":No Sub Type Information   GO to Pinpoint Test AD   IPMB U0212:00 Lost Communication With Steering Column Control Module:No Sub Type Information   GO to Pinpoint Test AJ   IPMB U0253:87 Lost Communication With Accessory Protocol Interface Module:Missing Message   GO to Pinpoint Test AK   IPMB U0293:00 Lost Communication with Hybrid/EV Powertrain Control Module:No Sub Type Information   GO to Pinpoint Test Y   IPMB U0300:57 Internal Control Module Software Incompatibility:Invalid/Incompatible Software Component   GO to Pinpoint Test AN   IPMB U0401:00 Invalid Data Received from ECM/PCM A:No Sub Type Information   GO to Pinpoint Test Y   IPMB U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module "A":No Sub Type Information   GO to Pinpoint Test Z   IPMB U0420:00 Invalid Data Received from Power Steering Control Module "A":No Sub Type Information   GO to Pinpoint Test AA   IPMB U0422:00 Invalid Data Received From Body Control Module:No Sub Type Information   GO to Pinpoint Test AC   IPMB U0423:82 Invalid Data Received from Instrument Panel Cluster Control Module:Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test AE   IPMB U0424:00 Invalid Data Received From HVAC Control Module:No Sub Type Information   GO to Pinpoint Test AF   IPMB U0424:82 Invalid Data Received From HVAC Control Module:Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test AF   IPMB U0428:00 Invalid Data Received From Steering Angle Sensor Module:No Sub Type Information   GO to Pinpoint Test AG   IPMB U0485:82 Invalid Data Received From Radio:Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test AH   IPMB U0553:82 Invalid Data Received From Lighting Control Module-Rear "B":Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test AI   IPMB U0554:00 Invalid Data Received From Accessory Protocol Interface Module:No Sub Type Information   GO to Pinpoint Test AK   IPMB U0554:82 Invalid Data Received From Accessory Protocol Interface Module:Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test AK   IPMB U0594:00 Invalid Data Received From Hybrid/EV Powertrain Control Module:No Sub Type Information   GO to Pinpoint Test Y   IPMB U1000:11 Solid State Driver Protection Active -Driver Disabled:Circuit Short To Ground   GO to Pinpoint Test AL   IPMB U2024:41 Control Module Cal-Config Data:General Checksum Failure   GO to Pinpoint Test AM   IPMB U2100:00 Initial Configuration Not Complete:No Sub Type Information   GO to Pinpoint Test AM   IPMB U2101:00 Control Module Configuration Incompatible:No Sub Type Information   GO to Pinpoint Test AM   IPMB U3000:42 Control Module:General Memory Failure   GO to Pinpoint Test AN   IPMB U3000:49 Control Module:Internal Electronic Failure   GO to Pinpoint Test AN Symptom Chart(s) Rear Only Parking Aid Camera Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...

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Activating Intelligent Access

The intelligent access key must be within 3 ft (1 m) of the door or luggage compartment you intend to lock or unlock.

At a Door

Electronic door handles are on each door. Gently depress the switch inside the exterior door handle to unlock and open the door. An unlock symbol illuminates on the door window trim indicating your vehicle is unlocked.

Lincoln Aviator. Activating Intelligent Access

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