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Technical Service Bulletins of the 2023 Ford Expedition

There have been 16 technical service bulletins issued for the 2023 Ford Expedition.

1 2023 Ford Expedition electrical system TSB (Bulletin OTASU6140SYNCEx)

Bulletin Date: Apr. 23, 2024
Component: Electrical system.
Bulletin Summary: Quality improvements include: -robustness action to improve the sync reboot issue that may occurs after 2 hours of continuous use. -update blis message strategy when a trailer is connected 15 inch portrait implementation
Vehicles covered in this TSB:
2023 Ford Expedition.

2 2023 Ford Expedition electrical system TSB (Bulletin OTAPU0630CMRBCDE)

Bulletin Date: Apr. 12, 2024
Component: Electrical system.
Bulletin Summary: Quality improvements include: adds robustness to increase the availability of blue cruise and fix drop issue.
Vehicles covered in this TSB:
2022 Ford Expedition, 2023 Ford Expedition.

3 2023 Ford Expedition electrical system:software TSB (Bulletin SSM 52345)

Bulletin Date: Mar. 8, 2024
Component: Electrical system:software.
Bulletin Summary: Some 2022-2024 various Ford/Lincoln vehicles equipped with sync 4 may experience concern where customers are receiving an error message when trying to enroll in connected services. This may be due to the gateway module (gwm) software. To CO
Vehicles covered in this TSB:
2023 Ford Bronco, 2024 Ford Bronco, 2023 Ford Edge, 2024 Ford Edge, 2023 Ford Escape, 2024 Ford Escape, 2023 Ford Expedition, 2024 Ford Expedition, 2023 Ford F-150, 2024 Ford F-150, 2022 Ford F-250 Sd, 2023 Ford F-250 Sd, 2024 Ford F-250 Sd, 2022 Ford F-350 Sd, 2023 Ford F-350 Sd, 2024 Ford F-350 Sd, 2022 Ford F-450 Sd, 2023 Ford F-450 Sd, 2024 Ford F-450 Sd, 2022 Ford F-550 Sd, 2023 Ford F-550 Sd, 2024 Ford F-550 Sd, 2022 Ford F-600 Sd, 2023 Ford F-600 Sd, 2024 Ford F-600 Sd, 2022 Ford F-650 Sd, 2023 Ford F-650 Sd, 2024 Ford F-650 Sd, 2022 Ford F-750 Sd, 2023 Ford F-750 Sd, 2024 Ford F-750 Sd, 2024 Ford Mustang, 2022 Ford Mustang Mach E, 2023 Ford Mustang Mach E, 2024 Ford Mustang Mach E, 2024 Ford Ranger, 2023 Ford Transit, 2024 Ford Transit, 2023 Lincoln Corsair, 2024 Lincoln Corsair, 2023 Lincoln Nautilus, 2023 Lincoln Navigator, 2024 Lincoln Navigator.

4 2023 Ford Expedition engine and engine cooling TSB (Bulletin SSM 52335)

Bulletin Date: Mar. 6, 2024
Component: Engine and engine cooling.
Bulletin Summary: For 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak, refer to workshop manual (wsm), section 303-00 for oil leak inspection and testing methods. Ford has evaluated turbocharg
Vehicles covered in this TSB:
2021 Ford Bronco, 2022 Ford Bronco, 2023 Ford Bronco, 2024 Ford Bronco, 2021 Ford Bronco Sport, 2022 Ford Bronco Sport, 2023 Ford Bronco Sport, 2024 Ford Bronco Sport, 2015 Ford Edge, 2016 Ford Edge, 2017 Ford Edge, 2018 Ford Edge, 2019 Ford Edge, 2020 Ford Edge, 2021 Ford Edge, 2022 Ford Edge, 2023 Ford Edge, 2024 Ford Edge, 2015 Ford Escape, 2016 Ford Escape, 2017 Ford Escape, 2018 Ford Escape, 2019 Ford Escape, 2020 Ford Escape, 2021 Ford Escape, 2022 Ford Escape, 2023 Ford Escape, 2024 Ford Escape, 2018 Ford Expedition, 2019 Ford Expedition, 2020 Ford Expedition, 2021 Ford Expedition, 2022 Ford Expedition, 2023 Ford Expedition, 2024 Ford Expedition, 2015 Ford Explorer, 2016 Ford Explorer, 2017 Ford Explorer, 2018 Ford Explorer, 2019 Ford Explorer, 2020 Ford Explorer, 2021 Ford Explorer, 2022 Ford Explorer, 2023 Ford Explorer, 2024 Ford Explorer, 2015 Ford Explorer Police Intercept, 2016 Ford Explorer Police Intercept, 2017 Ford Explorer Police Intercept, 2018 Ford Explorer Police Intercept, 2019 Ford Explorer Police Intercept, 2015 Ford F-150, 2016 Ford F-150, 2017 Ford F-150, 2018 Ford F-150, 2019 Ford F-150, 2020 Ford F-150, 2021 Ford F-150, 2022 Ford F-150, 2023 Ford F-150, 2024 Ford F-150, 2017 Ford F-250 Sd, 2018 Ford F-250 Sd, 2019 Ford F-250 Sd, 2020 Ford F-250 Sd, 2021 Ford F-250 Sd, 2022 Ford F-250 Sd, 2023 Ford F-250 Sd, 2024 Ford F-250 Sd, 2017 Ford F-350 Sd, 2018 Ford F-350 Sd, 2019 Ford F-350 Sd, 2020 Ford F-350 Sd, 2021 Ford F-350 Sd, 2022 Ford F-350 Sd, 2023 Ford F-350 Sd, 2024 Ford F-350 Sd, 2017 Ford F-450 Sd, 2018 Ford F-450 Sd, 2019 Ford F-450 Sd, 2020 Ford F-450 Sd, 2021 Ford F-450 Sd, 2022 Ford F-450 Sd, 2023 Ford F-450 Sd, 2024 Ford F-450 Sd, 2017 Ford F-550 Sd, 2018 Ford F-550 Sd, 2019 Ford F-550 Sd, 2020 Ford F-550 Sd, 2021 Ford F-550 Sd, 2022 Ford F-550 Sd, 2023 Ford F-550 Sd, 2024 Ford F-550 Sd, 2019 Ford F-600 Sd, 2020 Ford F-600 Sd, 2021 Ford F-600 Sd, 2022 Ford F-600 Sd, 2023 Ford F-600 Sd, 2024 Ford F-600 Sd, 2017 Ford F-650 Sd, 2018 Ford F-650 Sd, 2019 Ford F-650 Sd, 2020 Ford F-650 Sd, 2021 Ford F-650 Sd, 2022 Ford F-650 Sd, 2023 Ford F-650 Sd, 2024 Ford F-650 Sd, 2017 Ford F-750 Sd, 2018 Ford F-750 Sd, 2019 Ford F-750 Sd, 2020 Ford F-750 Sd, 2021 Ford F-750 Sd, 2022 Ford F-750 Sd, 2023 Ford F-750 Sd, 2024 Ford F-750 Sd, 2015 Ford Fiesta, 2016 Ford Fiesta, 2017 Ford Fiesta, 2018 Ford Fiesta, 2019 Ford Fiesta, 2015 Ford Focus, 2016 Ford Focus, 2017 Ford Focus, 2018 Ford Focus, 2015 Ford Fusion, 2016 Ford Fusion, 2017 Ford Fusion, 2018 Ford Fusion, 2019 Ford Fusion, 2020 Ford Fusion, 2015 Ford Fusion Energi, 2016 Ford Fusion Energi, 2017 Ford Fusion Energi, 2018 Ford Fusion Energi, 2019 Ford Fusion Energi, 2020 Ford Fusion Energi, 2015 Ford Fusion Hybrid, 2016 Ford Fusion Hybrid, 2017 Ford Fusion Hybrid, 2018 Ford Fusion Hybrid, 2019 Ford Fusion Hybrid, 2020 Ford Fusion Hybrid, 2022 Ford Maverick, 2023 Ford Maverick, 2024 Ford Maverick, 2015 Ford Mustang, 2016 Ford Mustang, 2017 Ford Mustang, 2018 Ford Mustang, 2019 Ford Mustang, 2020 Ford Mustang, 2021 Ford Mustang, 2022 Ford Mustang, 2023 Ford Mustang, 2024 Ford Mustang, 2015 Ford Police Interceptor Sedan, 2016 Ford Police Interceptor Sedan, 2017 Ford Police Interceptor Sedan, 2018 Ford Police Interceptor Sedan, 2019 Ford Police Interceptor Sedan, 2019 Ford Ranger, 2020 Ford Ranger, 2021 Ford Ranger, 2022 Ford Ranger, 2023 Ford Ranger, 2024 Ford Ranger, 2015 Ford Taurus, 2016 Ford Taurus, 2017 Ford Taurus, 2018 Ford Taurus, 2019 Ford Taurus, 2015 Ford Transit, 2016 Ford Transit, 2017 Ford Transit, 2018 Ford Transit, 2019 Ford Transit, 2020 Ford Transit, 2021 Ford Transit, 2022 Ford Transit, 2023 Ford Transit, 2024 Ford Transit, 2015 Ford Transit Connect, 2016 Ford Transit Connect, 2017 Ford Transit Connect, 2018 Ford Transit Connect, 2019 Ford Transit Connect, 2020 Ford Transit Connect, 2021 Ford Transit Connect, 2022 Ford Transit Connect, 2023 Ford Transit Connect, 2020 Lincoln Aviator, 2021 Lincoln Aviator, 2022 Lincoln Aviator, 2023 Lincoln Aviator, 2024 Lincoln Aviator, 2017 Lincoln Continental, 2018 Lincoln Continental, 2019 Lincoln Continental, 2020 Lincoln Continental, 2020 Lincoln Corsair, 2021 Lincoln Corsair, 2022 Lincoln Corsair, 2023 Lincoln Corsair, 2024 Lincoln Corsair, 2015 Lincoln MKC, 2016 Lincoln MKC, 2017 Lincoln MKC, 2018 Lincoln MKC, 2019 Lincoln MKC, 2015 Lincoln MKT, 2016 Lincoln MKT, 2016 Lincoln MKX, 2017 Lincoln MKX, 2018 Lincoln MKX, 2019 Lincoln MKX, 2020 Lincoln MKX, 2021 Lincoln MKX, 2015 Lincoln MKZ, 2016 Lincoln MKZ, 2017 Lincoln MKZ, 2018 Lincoln MKZ, 2019 Lincoln MKZ, 2020 Lincoln MKZ, 2015 Lincoln Mkz Hybrid, 2016 Lincoln Mkz Hybrid, 2017 Lincoln Mkz Hybrid, 2018 Lincoln Mkz Hybrid, 2019 Lincoln Mkz Hybrid, 2020 Lincoln Mkz Hybrid, 2019 Lincoln Nautilus, 2020 Lincoln Nautilus, 2021 Lincoln Nautilus, 2022 Lincoln Nautilus, 2023 Lincoln Nautilus, 2024 Lincoln Nautilus, 2018 Lincoln Navigator, 2019 Lincoln Navigator, 2020 Lincoln Navigator, 2021 Lincoln Navigator, 2022 Lincoln Navigator.

5 2023 Ford Expedition body hatchback/liftgate TSB (Bulletin SSM 52269)

Bulletin Date: Feb. 16, 2024
Component: Body hatchback/liftgate.
Bulletin Summary: 2022-2024 explorer/aviator vehicles built on or after 28-may-2022, 2022-2024 expedition/navigator vehicles built on or after 08-Jun-2022, 2022-2024 escape vehicles built on or after 01-Jun-2022 and 2022 corsair vehicles built on or after 01
Vehicles covered in this TSB:
2022 Ford Escape, 2023 Ford Escape, 2024 Ford Escape, 2022 Ford Expedition, 2023 Ford Expedition, 2024 Ford Expedition, 2022 Ford Explorer, 2023 Ford Explorer, 2024 Ford Explorer, 2022 Lincoln Aviator, 2023 Lincoln Aviator, 2024 Lincoln Aviator, 2022 Lincoln Corsair, 2022 Lincoln Navigator, 2023 Lincoln Navigator, 2024 Lincoln Navigator.

6 2023 Ford Expedition equipment TSB (Bulletin SSM 52269)

Bulletin Date: Feb. 16, 2024
Component: Equipment.
Bulletin Summary: 2022-2024 explorer/aviator vehicles built on or after 28-may-2022, 2022-2024 expedition/navigator vehicles built on or after 08-Jun-2022, 2022-2024 escape vehicles built on or after 01-Jun-2022 and 2022 corsair vehicles built on or after 01
Vehicles covered in this TSB:
2022 Ford Escape, 2023 Ford Escape, 2024 Ford Escape, 2022 Ford Expedition, 2023 Ford Expedition, 2024 Ford Expedition, 2022 Ford Explorer, 2023 Ford Explorer, 2024 Ford Explorer, 2022 Lincoln Aviator, 2023 Lincoln Aviator, 2024 Lincoln Aviator, 2022 Lincoln Corsair, 2022 Lincoln Navigator, 2023 Lincoln Navigator, 2024 Lincoln Navigator.

7 2023 Ford Expedition power train TSB (Bulletin 23B71)

Bulletin Date: Feb. 1, 2024
Component: Power train.
Bulletin Summary: Certain 2023 model year f150, expedition, navigators equipped with 8. 8 inch front axles - front axle assembly replacement
Vehicles covered in this TSB:
2023 Ford Expedition, 2023 Ford F-150, 2023 Lincoln Navigator.

8 2023 Ford Expedition equipment:electrical:infotainment TSB (Bulletin SU5P2 Expedition)

Bulletin Date: Sep. 20, 2023
Component: Equipment:electrical:infotainment.
Bulletin Summary: "software update su5 p2 for 2022 expedition is now available. Quality improvements include: '- adds a ""some display features may be temporarily unavailable"" message to the sync screen when a sync update is installing. "
Vehicles covered in this TSB:
2023 Ford Expedition.
 

9 2023 Ford Expedition equipment:electrical:infotainment:software TSB (Bulletin SU5P2 Expedition)

Bulletin Date: Sep. 20, 2023
Component: Equipment:electrical:infotainment:software.
Bulletin Summary: "software update su5 p2 for 2022 expedition is now available. Quality improvements include: '- adds a ""some display features may be temporarily unavailable"" message to the sync screen when a sync update is installing. "
Vehicles covered in this TSB:
2023 Ford Expedition.

10 2023 Ford Expedition equipment:electrical:infotainment TSB (Bulletin SU4P4 Expedition)

Bulletin Date: Sep. 15, 2023
Component: Equipment:electrical:infotainment.
Bulletin Summary: "software update su4 p4 for 2023 expedition vehicles is now available. Quality improvements include: -various apple carplay quality improvements"
Vehicles covered in this TSB:
2023 Ford Expedition.

11 2023 Ford Expedition equipment:electrical:infotainment:software TSB (Bulletin SU4P4 Expedition)

Bulletin Date: Sep. 15, 2023
Component: Equipment:electrical:infotainment:software.
Bulletin Summary: "software update su4 p4 for 2023 expedition vehicles is now available. Quality improvements include: -various apple carplay quality improvements"
Vehicles covered in this TSB:
2023 Ford Expedition.

12 2023 Ford Expedition back over prevention:software TSB (Bulletin SU5P1 Expedition)

Bulletin Date: Aug. 18, 2023
Component: Back over prevention:software.
Bulletin Summary: Software update 5 p1 for 2022-2023 expedition vehicles is now available. Quality improvements include: -enables rear screen mirroring via vehicle wifi hotspot -minimize time customer cannot enter the vehicle during future inhibit updates
Vehicles covered in this TSB:
2022 Ford Expedition, 2023 Ford Expedition.

13 2023 Ford Expedition navigational system(global positioning system) TSB (Bulletin SSM 51762)

Bulletin Date: Jul. 3, 2023
Component: Navigational system(global positioning system).
Bulletin Summary: Some 2021-2023 Ford and Lincoln vehicles equipped with sync 4 may exhibit the navigation feature in the center display screen only displaying imperial units and not being able to change to metric. This may be due to the software level of th
Vehicles covered in this TSB:
2021 Ford Bronco, 2022 Ford Bronco, 2023 Ford Bronco, 2023 Ford Escape, 2022 Ford Expedition, 2023 Ford Expedition, 2021 Ford F-150, 2022 Ford F-150, 2023 Ford F-150, 2022 Ford F-250 Sd, 2022 Ford F-350 Sd, 2022 Ford F-450 Sd, 2022 Ford F-550 Sd, 2022 Ford F-600 Sd, 2022 Ford F-650 Sd, 2022 Ford F-750 Sd, 2022 Ford Transit, 2023 Ford Transit, 2023 Lincoln Corsair, 2021 Lincoln MKX, 2021 Lincoln Nautilus, 2022 Lincoln Nautilus, 2023 Lincoln Nautilus, 2022 Lincoln Navigator, 2023 Lincoln Navigator.

14 2023 Ford Expedition electrical system:software TSB (Bulletin SSM 51762)

Bulletin Date: Jul. 3, 2023
Component: Electrical system:software.
Bulletin Summary: Some 2021-2023 Ford and Lincoln vehicles equipped with sync 4 may exhibit the navigation feature in the center display screen only displaying imperial units and not being able to change to metric. This may be due to the software level of th
Vehicles covered in this TSB:
2021 Ford Bronco, 2022 Ford Bronco, 2023 Ford Bronco, 2023 Ford Escape, 2022 Ford Expedition, 2023 Ford Expedition, 2021 Ford F-150, 2022 Ford F-150, 2023 Ford F-150, 2022 Ford F-250 Sd, 2022 Ford F-350 Sd, 2022 Ford F-450 Sd, 2022 Ford F-550 Sd, 2022 Ford F-600 Sd, 2022 Ford F-650 Sd, 2022 Ford F-750 Sd, 2022 Ford Transit, 2023 Ford Transit, 2023 Lincoln Corsair, 2021 Lincoln MKX, 2021 Lincoln Nautilus, 2022 Lincoln Nautilus, 2023 Lincoln Nautilus, 2022 Lincoln Navigator, 2023 Lincoln Navigator.

15 2023 Ford Expedition radio/tape deck/cd TSB (Bulletin SSM 51663)

Bulletin Date: May. 26, 2023
Component: Radio/tape deck/cd.
Bulletin Summary: 2021-2023 f-150/expedition may exhibit a pop noise and/or static in the speakers at start up that cannot be turned down or off using the audio system controls. To correct the condition, reprogram the audio digital signal processing module (
Vehicles covered in this TSB:
2021 Ford Expedition, 2022 Ford Expedition, 2023 Ford Expedition, 2021 Ford F-150, 2022 Ford F-150, 2023 Ford F-150.

16 2023 Ford Expedition equipment:appliance:tv/radio/speakers TSB (Bulletin SSM 51663)

Bulletin Date: May. 26, 2023
Component: Equipment:appliance:tv/radio/speakers.
Bulletin Summary: 2021-2023 f-150/expedition may exhibit a pop noise and/or static in the speakers at start up that cannot be turned down or off using the audio system controls. To correct the condition, reprogram the audio digital signal processing module (
Vehicles covered in this TSB:
2021 Ford Expedition, 2022 Ford Expedition, 2023 Ford Expedition, 2021 Ford F-150, 2022 Ford F-150, 2023 Ford F-150.

17 2023 Ford Expedition power train TSB (Bulletin SSM 51656)

Bulletin Date: May. 23, 2023
Component: Power train.
Bulletin Summary: Some 2022-2023 f-150/bronco/expedition/navigator/escape/corsair/bronco sport/edge/mustang vehicles built on 04-Sep-2022 and through 30-Dec-2022 may exhibit an illuminated malfunction indicator lamp (mil) with diagnostic trouble codes (dtc)
Vehicles covered in this TSB:
2022 Ford Bronco, 2023 Ford Bronco, 2022 Ford Bronco Sport, 2023 Ford Bronco Sport, 2022 Ford Edge, 2023 Ford Edge, 2023 Ford Escape, 2023 Ford Expedition, 2022 Ford F-150, 2023 Ford F-150, 2022 Ford Mustang, 2023 Ford Mustang, 2022 Lincoln Corsair, 2023 Lincoln Navigator.

18 2023 Ford Expedition power train TSB (Bulletin SSM 51419)

Bulletin Date: Mar. 8, 2023
Component: Power train.
Bulletin Summary: Some 2017-2023 Ford and Lincoln vehicles equipped with a 10r60/10r80/10r80 mht/10r100 transmission may exhibit a whine noise at idle and/or while driving. This may be identified as coming from the bellhousing and the front of the transmissi
Vehicles covered in this TSB:
2021 Ford Bronco, 2022 Ford Bronco, 2023 Ford Bronco, 2018 Ford Expedition, 2019 Ford Expedition, 2020 Ford Expedition, 2021 Ford Expedition, 2022 Ford Expedition, 2023 Ford Expedition, 2020 Ford Explorer, 2021 Ford Explorer, 2022 Ford Explorer, 2023 Ford Explorer, 2017 Ford F-150, 2018 Ford F-150, 2019 Ford F-150, 2020 Ford F-150, 2021 Ford F-150, 2022 Ford F-150, 2023 Ford F-150, 2023 Ford F-250 Sd, 2023 Ford F-350 Sd, 2023 Ford F-450 Sd, 2023 Ford F-550 Sd, 2018 Ford Mustang, 2019 Ford Mustang, 2020 Ford Mustang, 2021 Ford Mustang, 2022 Ford Mustang, 2023 Ford Mustang, 2019 Ford Ranger, 2020 Ford Ranger, 2021 Ford Ranger, 2022 Ford Ranger, 2023 Ford Ranger, 2020 Ford Transit, 2021 Ford Transit, 2022 Ford Transit, 2023 Ford Transit, 2020 Lincoln Aviator, 2021 Lincoln Aviator, 2022 Lincoln Aviator, 2023 Lincoln Aviator, 2018 Lincoln Navigator, 2019 Lincoln Navigator, 2020 Lincoln Navigator, 2021 Lincoln Navigator, 2022 Lincoln Navigator, 2023 Lincoln Navigator.

19 2023 Ford Expedition body hatchback/liftgate TSB (Bulletin SSM 51346)

Bulletin Date: Feb. 7, 2023
Component: Body hatchback/liftgate.
Bulletin Summary: Some 2022-2023 expedition vehicles may exhibit the liftgate spoiler contacting the roof during freezing temperatures when ice is present. Engineering is currently investigating this concern. To correct the condition, repair the spoiler and
Vehicles covered in this TSB:
2022 Ford Expedition, 2023 Ford Expedition.

20 2023 Ford Expedition rearview mirrors/devices exterior TSB (Bulletin SSM 51265)

Bulletin Date: Dec. 20, 2022
Component: Rearview mirrors/devices exterior.
Bulletin Summary: Some vehicles equipped with power folding mirrors may exhibit power folding mirrors that are inoperative or exhibit a clicking sound. This may be due to the mirrors being manually folded in, during transportation, going through a car wash,
Vehicles covered in this TSB:
2018 Ford Expedition, 2019 Ford Expedition, 2020 Ford Expedition, 2021 Ford Expedition, 2022 Ford Expedition, 2023 Ford Expedition, 2020 Ford Explorer, 2021 Ford Explorer, 2022 Ford Explorer, 2023 Ford Explorer, 2015 Ford F-150, 2016 Ford F-150, 2017 Ford F-150, 2018 Ford F-150, 2019 Ford F-150, 2020 Ford F-150, 2021 Ford F-150, 2022 Ford F-150, 2023 Ford F-150, 2017 Ford F-250 Sd, 2018 Ford F-250 Sd, 2019 Ford F-250 Sd, 2020 Ford F-250 Sd, 2021 Ford F-250 Sd, 2022 Ford F-250 Sd, 2017 Ford F-350 Sd, 2018 Ford F-350 Sd, 2019 Ford F-350 Sd, 2020 Ford F-350 Sd, 2021 Ford F-350 Sd, 2022 Ford F-350 Sd, 2017 Ford F-450 Sd, 2018 Ford F-450 Sd, 2019 Ford F-450 Sd, 2020 Ford F-450 Sd, 2021 Ford F-450 Sd, 2022 Ford F-450 Sd, 2017 Ford F-550 Sd, 2018 Ford F-550 Sd, 2019 Ford F-550 Sd, 2020 Ford F-550 Sd, 2021 Ford F-550 Sd, 2022 Ford F-550 Sd, 2018 Ford Transit, 2019 Ford Transit, 2020 Lincoln Aviator, 2021 Lincoln Aviator, 2022 Lincoln Aviator, 2023 Lincoln Aviator, 2018 Lincoln Navigator, 2019 Lincoln Navigator, 2020 Lincoln Navigator, 2021 Lincoln Navigator, 2022 Lincoln Navigator, 2023 Lincoln Navigator.


Also see Common problems of Ford Expedition.