2021 Lincoln Navigator Service and Repair Manual

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Factory-Grade Data

2021 Lincoln Navigator service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • Black Label Sport Utility 4-Door
  • L Black Label Sport Utility 4-Door
  • L Reserve Sport Utility 4-Door
  • Base Sport Utility 4-Door
  • Reserve Sport Utility 4-Door
  • L Livery Sport Utility 4-Door

Engines covered

  • 3.5L 3496CC 213Cu. In. V6 GAS DOHC Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2021 Lincoln Navigator Recalls & Complaints

NHTSA #26V20400031/03/2026Component: VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES

Ford Motor Company (Ford) is recalling certain 2021-2023 Lincoln Navigator, Expedition, and 2022-2023 F-250 SD, F-350 SD, F-450 SD, F-550 SD, and F-600 SD vehicles. The windshield wiper arms may break

Consequence

Windshield wiper failure can reduce visibility, increasing the risk of a crash.

Remedy

Dealers will inspect and replace the wiper arms, as necessary, free of charge. Interim letters, noti

NHTSA #23V59800025/08/2023Component: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Ford Motor Company (Ford) is recalling certain 2020-2023 Lincoln Aviator, 2018-2021 Lincoln Navigator, 2022-2023 Ford Transit, and 2021 Ford Bronco vehicles. The rearview camera, or 360-degree view c

Consequence

Loss of the rearview camera image can reduce the driver's rear visibility, increasing the risk of a

Remedy

Dealers will replace the rearview camera, and update the software and wiring as necessary, free of c

NHTSA #25V72900024/10/2025Component: VISIBILITY:SUN/MOON ROOF ASSEMBLY

Ford Motor Company (Ford) is recalling certain 2021-2022 Expedition, Lincoln Navigator, 2021-2023 F-150, 2022 F-250 SD, F-350 SD, and F-450 SD vehicles. The moonroof wind deflector clips may be inadeq

Consequence

A detached wind deflector can become a road hazard and increase the risk of a crash.

Remedy

Dealers will inspect and repair the moonroof wind deflector as necessary, free of charge. Owner not

NHTSA #21V80500015/10/2021Component: AIR BAGS:SENSOR:SIDE IMPACT

Ford Motor Company (Ford) is recalling certain 2022 Super Duty F-250, F-350, 2021 F-150, Expedition, and Lincoln Navigator vehicles. The front-door side impact pressure sensor modules may have been d

Consequence

An air bag that does not deploy properly during a crash increases the risk of injury.

Remedy

Dealers will replace the driver and passenger front door side impact sensors, free of charge. Owner

NHTSA #22V25000014/04/2022Component: VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES

Ford Motor Company (Ford) is recalling certain 2020-2021 F-150, Expedition, 2020-2022 Super Duty F-250, F-350, F-450, F-550, and 2020-2021 Lincoln Navigator vehicles. The windshield wiper arms may br

Consequence

Inoperative windshield wipers can reduce visibility in certain driving conditions, increasing the ri

Remedy

Dealers will replace both front windshield wiper arms, free of charge. Interim owner notification l

NHTSA #23V42000009/06/2023Component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Ford Motor Company (Ford) is recalling certain 2018-2023 Expedition and Lincoln Navigator vehicles equipped with third-row seating; and 2019-2023 F-Super Duty F-250, F-350, F-450, and F-550 SuperCab v

Consequence

Without instructions, the head restraints may be improperly adjusted, increasing the risk of injury

Remedy

Ford will mail the Owner's Manual addendums that describe how to adjust and remove the head restrain

TSB #11031262

For 20212026 vehicles equipped with the 10R80 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford Diagnosis and Repair System (FDRS). This test utilizes the pressure and vacuum transducer (PVT) when

TSB #11029595

Some 2019-2024 Ford and Lincoln vehicles equipped with SYNC3 may experience various connectivity concerns with The Ford App Lincoln App including but not limited to: missing activation prompt pop-upon the vehicle's center display screen whe

TSB #11028803

Some of the vehicles listed in the Model statement above may exhibit a broken floor console armrest latch.

TSB #11028797

Some 2020-2022-Corsair, 2021-2023 Nautilus, 2020-2024 Navigator/Aviator, and 2021-2024 Mustang Mach-E vehicles equipped with phone-as-a-key may exhibit various phone-as-a-key concerns with diagnostic trouble codes (DTC) U200D:15, U200E:15,

TSB #11026928

Special Field Action 25L02 Certain 2017-2024 Model Year California Emissions-Certified Vehicles Transmission Control Assembly Reimbursement

TSB #11025816

Some 2021-2025 F-150/Expedition/Navigator vehicles equipped with a 3.5L EcoBoost engine may exhibit diagnostic trouble code (DTC) P0299 stored in the powertrain control module (PCM) and may also exhibit a rattle noise from the turbocharger.

TSB #11025611

Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. Pinpoint test HK in the Powertrain Contro

TSB #11025526

Some 2021-2025 Expedition/Navigator/F-150/F-Super Duty/F-53 Motorhome/F59 Commercial Stripped Chassis/F-650/F-750/Transit vehicles equipped with a 2.7L/3.5L (non hybrid)/6.8L/7.3L engine and 2021-2026 E-Series may exhibit a rattle/scraping

Showing the 8 most recent of 142 technical service bulletins on file with NHTSA.

20240131Component: BACK OVER PREVENTIONCrash reported

The contact owns a 2021 Lincoln Navigator. The contact received notification of NHTSA Campaign Number: 23V598000 (Back Over Prevention) however, the part to do the repair was unavailable. The contact

20260313Component: EXTERIOR LIGHTING

THE REAR LIGHT BAR DEVELOPS LEAKS AND CAN MAKE THE REAR LIGHING GO OUT. DEALER WAS MADE AWARE AND STATES IT'S NO LONGER A COVERED ITEM.

20260210Component: POWER TRAIN

While driving, the vehicle repeatedly hesitated during gear changes, lost power, and then abruptly jerked back into gear. This occurred intermittently for over a month without any warning messages, cr

20260210Component: VEHICLE SPEED CONTROL

While driving, the vehicle repeatedly hesitated during gear changes, lost power, and then abruptly jerked back into gear. This occurred intermittently for over a month without any warning messages, cr

20260210Component: ENGINE

While driving, the vehicle repeatedly hesitated during gear changes, lost power, and then abruptly jerked back into gear. This occurred intermittently for over a month without any warning messages, cr

Showing the 5 most serious of 33 complaints filed with NHTSA.

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