2021 Lincoln Navigator

The 2021 Lincoln Navigator is a full-size luxury SUV known for its spacious interior, smooth ride, and powerful engine. It is powered by a 3.5-liter twin-turbocharged V6 engine producing 450 horsepower and 510 lb-ft of torque, paired exclusively with a 10-speed automatic transmission. People generally appreciate the Navigator’s opulent interior, comfortable seating, and advanced technology features. Some common dislikes include its large size making it difficult to maneuver in tight spaces and its relatively high fuel consumption.

Engine

3.5L Twin-Turbocharged V6

• Wastegate Actuator Failure
  • Description/Symptoms: Some owners have reported issues with the wastegate actuator, which can lead to reduced engine power, hesitation during acceleration, and the check engine light illuminating. A whistling or chirping sound may be heard during acceleration as well.
  • Solution: Replacing the wastegate actuator or the entire turbocharger assembly.
  • Estimated Cost to Fix: $800 - $2,500+
  • Recalls: None Found
• Engine Misfires
  • Description/Symptoms: Engine misfires can occur due to faulty ignition coils, spark plugs, or fuel injectors. Symptoms include rough idling, decreased fuel economy, and a noticeable lack of power.
  • Solution: Diagnosing the cause of the misfire (ignition coil, spark plug, or fuel injector) and replacing the faulty components.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Transmission

10-Speed Automatic

• Harsh Shifting/Jerking
  • Description/Symptoms: Some owners have reported harsh or jerky shifting, particularly between lower gears. This can be more pronounced when the transmission is cold.
  • Solution: A software update to the transmission control module (TCM) can sometimes resolve the issue. In other cases, valve body replacement may be necessary.
  • Estimated Cost to Fix: $150 - $1,500+
  • Recalls: None Found
• Transmission Slipping
  • Description/Symptoms: Transmission slipping, where the engine revs up without a corresponding increase in speed, has been reported by some owners.
  • Solution: This could be due to low transmission fluid, valve body issues, or internal component failure. Diagnosing the cause and performing necessary repairs such as fluid flush and fill, valve body replacement, or transmission replacement.
  • Estimated Cost to Fix: $200 - $6,000+
  • Recalls: None Found

Suspension

• Air Suspension Problems
  • Description/Symptoms: The Navigator’s air suspension system can sometimes experience issues, leading to the vehicle sagging or not maintaining proper ride height. This can be caused by leaks in the air springs, a malfunctioning air compressor, or a faulty height sensor.
  • Solution: Replacing the faulty air spring, air compressor, or height sensor.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Electrical

• SYNC 4 System Glitches
  • Description/Symptoms: The SYNC 4 infotainment system has been reported to experience glitches, including screen freezes, unresponsive touch controls, and connectivity issues with smartphones.
  • Solution: Performing a software update or resetting the system. In some cases, replacing the APIM (Accessory Protocol Interface Module) may be required.
  • Estimated Cost to Fix: $0 - $1,200+
  • Recalls: None Found
• Battery Drain Issues
  • Description/Symptoms: Some owners have reported experiencing a dead battery overnight or after the vehicle has been sitting for a few days. This can be caused by a parasitic drain from an electrical component or a faulty battery.
  • Solution: Identifying the source of the parasitic drain or replacing the battery.
  • Estimated Cost to Fix: $150 - $500+
  • Recalls: None Found

Exterior

• Power Running Board Malfunction
  • Description/Symptoms: The power running boards may fail to extend or retract properly, or may become stuck in one position. This can be caused by a faulty motor, a damaged linkage, or debris obstructing the mechanism.
  • Solution: Cleaning and lubricating the linkage, replacing the motor, or replacing the entire running board assembly.
  • Estimated Cost to Fix: $200 - $1,500+
  • Recalls: None Found

Interior

• Seat Motor Failure
  • Description/Symptoms: The power seat motors can sometimes fail, preventing the seat from adjusting properly.
  • Solution: Replacing the faulty seat motor.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Summary:

The 2021 Lincoln Navigator has a mix of issues, with some being relatively minor and others being more significant. Engine and transmission problems, while not widespread, can be costly to repair. Electrical and suspension issues are also potential concerns. While the Navigator offers luxury and performance, prospective buyers should be aware of these potential problems and consider extended warranty options. The severity of the issues range from minor inconveniences to potentially stranding the driver, and the costs to fix can range from a few hundred dollars to several thousand.