Service bulletins for the 2021 Lincoln Aviator
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
271 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| SSM 50361 | 2021-12-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. Some 2020-2022 Explorer/Aviator vehicles may exhibit poor sound quality from the left and/or right front speaker while using Bluetooth audio. This may be due to concerns with the wiring harness or connections of connector C2383A, C202, and/or C4240B. Prior to the replacement of the affected speaker, inspect the inline connections at connectors C2383A, C202, and C4240B for damage or incorrect pin fit. If no concerns are found with the wiring harness, continue with the replacement of the affected speaker. |
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| SSM 50348 | 2021-12-26. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2022 Explorer/Aviator vehicles may exhibit an illuminated MIL with multiple diagnostic trouble codes (DTC). These DTCs may include P04F0, P008A, P0451, P0455, P0456, P0496 and/or P018C. This may be due to the wiring harness connection at connector C1198. Prior to replacement of any components, inspect the connector and wiring harness for any damage or pin fit concerns. If any damage or pin fit concerns are found, repair the connector or harness as necessary. If no damage or pin fit concerns are found, refer to normal diagnostics. |
| SSM 50346 | 2021-12-26. Service bulletin. EQUIPMENT:ELECTRICAL. Some 2018-2021 Ford and Lincoln vehicles may exhibit inoperative remote features via the Ford Pass/Lincoln Way mobile app, incomplete user authorization, no modem electronic serial number (ESN) displayed or DTCs U2100 and/or B156D in the telematics control unit (TCU). These symptoms may persist even after performing a TCU software update and/or replacement. To correct this condition, start a new session with the latest version of the appropriate diagnostic scan tool and perform a PMI on the TCU. If issues persist, open a hotline assistance request and include the IDS version (if applicable) used to perform the PMI and the Authorization Status PID value in the TCU datalogger. For claiming use causal part 14G229 and applicable labor times in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
| SSM 50329 | 2021-12-26. Service bulletin. POWER TRAIN. Some 2021 Bronco/F-150/Explorer/Aviator/Police Interceptor Utility vehicles, non-hybrid, may exhibit harsh/delayed engagement and/or harsh/delayed shift concerns. These may be addressed with the powertrain control module (PCM)/transmission control module (TCM) Transmission Accelerated Main Control Break In Routine. Refer to Workshop Manual (WSM), Section 307-01, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. Cycling the shift solenoids and clutch control valves to remove contamination must be performed along with an adaptive drive cycle before attempting repair. This routine's usage has been expanded for various symptoms across the life of the vehicle. For claiming, use causal part 7A100 and applicable labor operations in Section 7 of the Service Labor Time Standards (SLTS) Manual. |
| SSM 50321 | 2021-12-26. Service bulletin. POWER TRAIN. Some 2020-2021 Explorer/Aviator/Police Interceptor Utility vehicles equipped with AWD may exhibit a binding or shudder sensation while turning and/or while accelerating from low speeds. The concern may also be described as a grinding and/or chatter noise. If the Workshop Manual (WSM) leads to replacement of the rear axle, inspect the differential for damage and differential fluid for metallic chunks in the fluid. Note that some metallic flake in the fluid and/or discoloration is normal and the rear axle should not be replaced for it. If no damage is found to the rear differential, it is not recommended to replace the rear axle assembly. Instead, refer to the Symptom Charts in WSM, Section 308-07 for further diagnosis of the transfer case. |
| SSM 50306 | 2021-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Some 2018-2021 EcoSport, Expedition, Navigator; 2019-2021 Ranger; 2020-2021 Escape, Corsair, Explorer, Transit; 2021 Bronco, Bronco Sport, Edge, Nautilus, F-150, Mustang; 2019-2022 Transit Connect; 2020-2022 Aviator, F-Super Duty; and 2022 Maverick vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0496, P0456, P0455, P04F0, and/or P0451. Ford has tested returned EVAP canister purge valves and found them to be fully functional. Prior to replacing the canister purge valve or other EVAP components, perform the following tests using the Ford Diagnosis and Repair System (FDRS) Scan Tool: Full System EVAP Leak Test - FDRS Location: TOOLBOX > PCM > PCM - Evap Emissions System Test and the EVAP Purge Valve Leak Test - FDRS Location: TOOLBOX > PCM > Evap Emission System Toolbox > CPV Check. |
| TSB 21-2411 | 2021-12-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This article supersedes TSB 21-2342 to update the Issue, Action, and Service Procedure. Some 2019-2020 Edge/F-150/Fusion/Continental/MKZ/Nautilus, 2019-2021 Mustang/Ranger/Transit Connect, 2020-2021 EcoSport/Escape/Expedition/Explorer/F-Super Duty/Aviator/Corsair/Navigator and 2021 Bronco Sport vehicles with SYNC 3 may experience various SYNC performance related concerns including but not limited to: Sirius audio not functioning properly after a key cycle with active subscription Presets not responding or indicating properly Intermittent audio echo/robotic voice heard during a Bluetooth phone call Wi-Fi connection message pop-up every key cycle Frozen unresponsive touchscreen Solid blue screen when moving forward at speeds above 16 km/h (10 mph) (2019 vehicles only) Rear parking aid camera remains on the screen at speeds below 16 km/h (10 mph) (2019 vehicles only) Inoperative infotainment applications Poor/no AppLink function Apple CarPlay not launching on connection or a black screen when connected Voice prompts that skip or have short pauses while directions are being provided |
| TSB 21-2342 | 2021-11-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some 2019-2020 Edge/F-150/Fusion/Continental/MKZ/Nautilus, 2019-2021 Mustang/Ranger/Transit Connect, 2020-2021 EcoSport/Escape/Expedition/Explorer/F-Super Duty/Aviator/Corsair/Navigator and 2021 Bronco Sport vehicles with SYNC 3 may experience various SYNC performance related concerns. To correct the condition, follow the Service Procedure to update the accessory protocol interface module (APIM) software. |
| TSB 21-2254 | 2021-11-02. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Some 2020-2021 Escape/Corsair vehicles built on or before 30-Mar-2021 and Explorer/Aviator vehicles built on or before 09-Apr-2021 may exhibit a slow fuel fill and/or spit back condition during refueling. This may be due to the design of the fuel tank filler pipe. To correct the condition, follow the Service Procedure to replace the fuel tank filler pipe. |
| SSM 50193 | 2021-10-29. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2021 Aviator and 2021 Corsair hybrid vehicles may exhibit charging concerns with the Lincoln Dual-Voltage Charging Cord. Use a 110/120V non-GFI outlet and check to see if the vehicle charges properly with the 220V adapter removed. If the charging cord concern is only present when using the 220V adapter, a complete charge cord replacement may not be needed as the 220V adapter (part number VL5CZ-10B706-B) is available separately at accessories.lincoln.com or through the local Ford Authorized Distributor (FAD). Note that discoloration of the 220V adapter or dual voltage charging cord could indicate a problem with the electrical outlet that's used and should be inspected by a licensed electrician. For further diagnostic assistance, contact Webasto Charging systems, Inc. directly at 888-219-6747 or at evscs@webasto.com. |
| SSM 50184 | 2021-10-29. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CLUTCHES/BANDS:ACTUATORS/SOLENOIDS. Some 2021 Bronco/F-150/Explorer/Aviator/Police Interceptor Utility vehicles, excluding hybrid, may exhibit harsh or delayed engagement/shift concerns. Most concerns may be addressed with the PCM/TCM Transmission Accelerated Main Control Break In Routine. Refer to Workshop Manual (WSM), Section 307-01, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. This routine cycles the shift solenoids and clutch control valves to remove contamination that may be sticking the valves and must be performed along with an adaptive drive cycle before attempting internal service. Although this routine was developed for low mileage vehicles, its usage is being expanded for various symptoms across the life of the vehicle.For claiming, use causal part 7A100 and applicable labor operations in Section 7 of the Service Labor Time Standards (SLTS) Manual. |
| SSM 50170 | 2021-10-29. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:SOFTWARE. Some 2020-2021 Navigator and 2020-2022 Aviator vehicles may exhibit a condition where the degrees do not appear in the SYNC screen when adjusting the climate control temperature. This may be due to the SYNC software installed in the accessory protocol interface module (APIM). Engineering is currently developing a software update that is expected in January 2022. Once the software update is available, it will be made available to customers who have enabled SYNC 3 Automatic Updates with their vehicle connected to a Wi-Fi network. Repair appointments should be scheduled for customers in February 2022 who do not receive Automatic Updates. Monitor OASIS for updates. |
| SSM 50163 | 2021-10-01. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2021 Navigator and Aviator vehicles may exhibit a condition where the degrees do not appear in the SYNC screen when adjusting the climate control temperature. This may be due to the SYNC software installed in the accessory protocol interface module (APIM). Engineering is currently developing a software update that is expected in January 2022. Once the software update is available, it will be made available to customers who have enabled SYNC 3 Automatic Updates with their vehicle connected to a Wi-Fi network. Repair appointments should be scheduled for customers in February 2022 who do not receive Automatic Updates. Monitor OASIS for updates. |
| TSB 21-2297 | 2021-09-30. Service bulletin. AIR BAGS:SENSOR:SIDE IMPACT; ELECTRICAL SYSTEM. Some 2020-2021 Explorer/Aviator and 2021 Bronco vehicles may exhibit an illuminated airbag warning indicator with diagnostic trouble code (DTC) B1404:13 and/or B1407:13. This may be due to contamination and relative movement in the connection between the wiring harness and the side airbag. To correct the condition, follow the Service Procedure steps to replace the affected connector with a service pigtail and the affected side airbag. |
| TSB 21-2294 | 2021-09-30. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:DOGS/SYNCHROS. Some 2019-2020 Edge/F-150/Fusion/Continental/MKZ/Nautilus, 2019-2021 Mustang/Ranger/Transit Connect, 2020-2021 EcoSport/Escape/Expedition/Explorer/F-Super Duty/Aviator/Corsair/Navigator and 2021 Bronco Sport vehicles with SYNC 3 may experience various SYNC performance related concerns To correct the condition, follow the Service Procedure to update the accessory protocol interface module (APIM) software. |
| TSB 21-2293 | 2021-09-30. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT; EQUIPMENT; ELECTRICAL SYSTEM. Some 2020-2021 Explorer/Aviator hybrid vehicles may exhibit a brake pedal pulsation or vibration when the brakes are applied. The customer may state that the anti-locking brake system (ABS) system is activating without any indicators on the instrument panel cluster (IPC). This may be due to the regenerative braking software in the ABS module. To correct the condition, follow the Service Procedure Steps to perform a coordinated flash on the powertrain control module (PCM) and ABS module. |
| SSM 50153 | 2021-09-28. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Some 2020-2021 Navigator and Aviator vehicles may exhibit a condition when setting the climate control temperature where the degrees do not appear in the SYNC screen. This may be due to the SYNC software installed in the accessory protocol interface module (APIM). Engineering is currently developing a software update that is expected in January 2022. Once the software update is available, contact the customer and schedule a follow-up appointment for repair in February 2022. Monitor OASIS for updates. |
| SSM 50151 | 2021-09-28. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2021 Explorer/Aviator Hybrids, 2021 Corsair Hybrid, 2021 F-150 PowerBoost, and 2021 Mustang Mach-E vehicles may exhibit a no-start with a Stop Safely Now warning message in the instrument panel cluster (IPC). The vehicle may have one or more of the following DTCs P0A23, P0A6F, P0A72, P0A75, P0A71, P0A74, P0A77, P0DFA, P06B1, P0A47, P1A0E set by the secondary on-board diagnostic module C (SOBDMC) or secondary on-board diagnostic module B (SOBDMB). This may be due to a drop in the 12-volt circuit. These DTCs will often occur at vehicle key-on and may be difficult to reproduce. Before replacement of the SOBDMC or SOBDMB, diagnose any low voltage DTCs (P0562, U3003) in other modules in the 12V system. If low voltage (less than 10V) is observed in these DTCs snapshot, diagnose the 12v system first. Refer to Workshop Manual (WSM), Section 418-00. |
| SSM 50106 | 2021-09-28. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. Some 2020-2021 Explorer/Aviator vehicles may exhibit the A/C blowing warm air with DTC P0645 present in the heating ventilation and air conditioning (HVAC) module. This may be due to spread terminal/terminal pushout in wire harness 14290 and on the corresponding pins to the body control module C (BCMC). Before replacement of the BCMC, disconnect all connectors from the BCMC and check the BCMC pins and wire terminals for damage. Refer to Workshop Manual (WSM), Section 419-10. If spread terminals or terminal pushout is present, repair as necessary. Refer to Wiring Diagram, Cell 005 for repair procedures. Reconnect all connections to the BCMC as indicated by the procedure in the Shop manual. Test the function of the A/C to ensure that it is blowing cold air. |
| SSM 50082 | 2021-09-28. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; EQUIPMENT ADAPTIVE/MOBILITY. Some 2020-2021 Explorer/Aviator vehicles may exhibit an inoperative driver switchpack (windows inop, mirror control unresponsive, etc.). DTC B1088:87 may be present in the DDM. To correct the condition perform the Driver Door Module (DDM) configuration application using the Ford diagnostic scan tool. After running the configuration application, perform a window learn routine via the ford diagnostic scan tool. The condition can also be resolved by letting the vehicle enter a deep sleep cycle. Engineering is currently investigating this concern and will be releasing a service fix. Let the customer know they can continue to drive the vehicle and schedule service appointments for customers once the repair becomes available. For claiming, use causal part 14B291 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
| SSM 50077 | 2021-09-28. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. Some 2020-2021 Corsair/Nautilus/Navigator/Aviator, 2021 Mustang Mach-E vehicles equipped with Phone-as-a-Key may exhibit Phone-as-a-Key concerns and have diagnostic trouble code(s) (DTC) U200D:15, U200E:15, U200F:15, B15**:31, B15**:49 and/or B15A5:56 stored in the remote function actuator (RFA) module. If the vehicle is exhibiting other symptoms outside of Phone-as-a-key concerns, address those first. If any of these DTCs are detected during diagnostics, clear the DTCs, reflash RFA to the latest software level and start a new Ford Diagnosis and Repair System (FDRS) session. Verify that DTCs are no longer present. If only the B15**:31, B15**:57 and/or B15A5:56 DTC(s) returns in the RFA after a self test, follow normal Workshop Manual (WSM) diagnostics, Section 419-01C. |
| SSM 50067 | 2021-09-04. Service bulletin. ELECTRICAL SYSTEM. Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTC) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. This may be due to small debris causing the VCT solenoid to stick. Before attempting any component diagnosis or replacement of the VCT solenoid, refer to Powertrain Control and Emissions Diagnosis (PC/ED) pinpoint test HK12 to cycle the affected VCT solenoid 10 times to attempt to clear the debris. For claiming, use causal part 6M280 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
| SSM 50064 | 2021-09-04. Service bulletin. SERVICE BRAKES, ELECTRIC:SOFTWARE/PROGRAMMING. Some 2013-2021 Ford and Lincoln vehicles may exhibit noise when the brakes are applied. When diagnosing and repairing brake noise conditions, use the Workshop Manual (WSM) and the appropriate pinpoint test in section 206-00. The brake rotors should only be machined if directed by the WSM because one or more of the following conditions are present on the braking surface: scoring, excessive corrosion/rust or pitting, bluing/discoloration and/or heat spots. For additional information, refer to WSM section 206-00. |
| SSM 50048 | 2021-09-04. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY THERMAL:MANAGEMENT:SOFTWARE. Some 2020-2021 Corsair/Aviator/Navigator vehicles may have diagnostic trouble code (DTC) U3000:49 DTC stored in the remote function actuator (RFA) module preventing paring-connecting any phone as a key to the vehicle. If this DTC is detected during pre-delivery inspection (PDI) or while diagnosing phone as a key pare/connection issue, remove the RFA fuse or disconnect the battery terminals for minimum of 5 minutes then reinstall. Start a new FDRS session and verify that U3000:49 is no longer present. Ensure that phone as a key is enabled and a phone can be paired to the vehicle. If the concern is still present, follow normal diagnostics procedures in Workshop Manual (WSM), Section 419-01C. |
| SSM 50046 | 2021-09-04. Service bulletin. ENGINE; POWER TRAIN:TRANSMISSION CASE/HOUSING. Some 2021 Explorer/Aviator/Police Interceptor Utility/F-150 Hybrid vehicles equipped with a 10R80 modular hybrid transmission (MHT) may exhibit a transmission fluid leak at the engine disconnect clutch pressure sensor. This condition may be due to loose engine disconnect clutch pressure sensor fasteners. To correct the condition, tighten the engine disconnect clutch pressure sensor fasteners per Workshop Manual (WSM), Section 307-01. Replacing the engine disconnect clutch sensor is not necessary to correct the condition. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.