2021 Lincoln Nautilus Service and Repair Manual

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Factory-Grade Data

2021 Lincoln Nautilus 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
  • Base Sport Utility 4-Door
  • Reserve Sport Utility 4-Door

Engines covered

  • 2.7L 164Cu. In. V6 GAS DOHC Turbocharged
  • 2.0L 1999CC 122Cu. In. l4 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 Nautilus Recalls & Complaints

NHTSA #24V63500023/08/2024Component: ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

Ford Motor Company (Ford) is recalling certain 2021-2022 Bronco, F-150, Edge, Explorer, Lincoln Nautilus, and Lincoln Aviator vehicles equipped with either a 2.7L or 3.0L Nano EcoBoost engine. The en

Consequence

A loss of drive power increases the risk of a crash.

Remedy

Dealers will perform an engine cycle test and replace the engine as necessary, free of charge. Owner

NHTSA #25V31500009/05/2025Component: BACK OVER PREVENTION:SOFTWARE

Ford Motor Company (Ford) is recalling certain 2021-2024 Bronco, F-150, 2021-2024 Edge, 2022-2025 Escape, F-250, F-350, F-450, F-550, F-600, 2022-2024 Expedition, 2022-2025 Transit, 2021-2023 Mach-E,

Consequence

A frozen or missing rearview camera image can reduce the driver's view behind the vehicle, increasin

Remedy

The accessory protocol interface module (APIM) software will be updated by a dealer or through an ov

TSB #11031632

Some 2021-2023 Nautilus vehicles may exhibit inoperative phone as a key and no communication with the remote function actuator (RFA) module. There may also be diagnostic trouble code (DTC) U0214 stored in various modules for loss of communi

TSB #11031619

This bulletin supersedes 25-2627. Reason for update: To add a Step to reprogram the all-wheel drive (AWD) module for Bronco Sport vehicles. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions

TSB #11031490

This article updates TSB 25-2154. Reasons for update: *Parts List *Service Procedure to replace the output planetary carrier assembly *Added 2023-2024 model year vehicles Some of the vehicles listed in the Model statement above may exhibit

TSB #11030911

Certain 2021 - 2022 Model Year Various Vehicles Engine Valve Inspection Test This submission includes : Technical Instructions Updated wording and description with additional photo.

TSB #11030580

"25S49 Recall Remedy: -Infotainment software update to address frozen screens"

TSB #11029921

This article supersedes TSB 25-2466 to add Bronco Sport, Escape, Maverick and Corsair, as well as removing Expedition and Navigator. One time use parts for Corsair and Bronco Sport were also added to the parts list. Some of the vehicles lis

TSB #11028804

This article supersedes TSB 25-2552 to update the Parts List Some of the vehicles listed in the Model statement above may exhibit all of the following conditions:  Shudder chatter condition, most noticeable at low speeds turning  No diagn

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,

Showing the 8 most recent of 125 technical service bulletins on file with NHTSA.

20230227Component: VEHICLE SPEED CONTROLCrash reported

The contact owns a 2021 Lincoln Nautilus. The contact stated that while his wife was pulling into a parking space, the vehicle abruptly accelerated, crashing into the handicap pole sign. There were no

20260426Component: ELECTRICAL SYSTEM

Vehicle died in parking lot. The electronics all worked, it just would not start and would not go into any gear. Had to have it towed to dealer for repair. They replaced the PCM but it still would not

20260426Component: ENGINE

Vehicle died in parking lot. The electronics all worked, it just would not start and would not go into any gear. Had to have it towed to dealer for repair. They replaced the PCM but it still would not

20260130Component: POWER TRAIN

While driving on the highway my transmission died. Had it towed to a nearby forwad dealershiop, Owens Ford in Jarrett VA and they confirmed the transmission died at 51,600 miles.

20260122Component: STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS

The contact owns a 2021 Lincoln Nautilus. The contact stated that while opening the front driver’s door, there was a cracking sound coming from the door. While the vehicle was in for routine mainten

Showing the 5 most serious of 20 complaints filed with NHTSA.

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