Lincoln Navigator 2004 Owner's Manual page 279

When one of the rear wheels is off the ground, the transmission
alone will not prevent the vehicle from moving or slipping off the
jack, even if the transmission is in P (Park). To prevent the vehicle
from moving when you change the tire, be sure that the parking brake
is set and the diagonally opposite wheel is blocked. If the vehicle slips
off the jack, someone could be seriously injured.
• Front
• Rear
Turn off the running boards before jacking or placing any object
under the vehicle. Never place your hand between the extended
running board and the vehicle. A moving running board may cause
injury.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)
Roadside Emergencies
I n f o r ma t i o n P r o v i d e d b y :
279