See also:

Child restraint and safety belt maintenance
Inspect the vehicle safety belts and child safety seat systems periodically to make sure they work properly and are not damaged. Inspect the vehicle and child seat safety belts to make sure there ...

Locking the doors
1. Press and release to lock all the doors. The turn signal lamps will illuminate. 2. Press and release again within three seconds to confirm that all the doors are closed. Note: The doors ...

Under the Hood
Lincoln’s 5.4-liter V-8 engine develops 300 horsepower and 355 pounds-feet of torque, and it mates with a four-speed-automatic transmission. The Navigator is rated as an Ultra Low Emissions Vehicl ...