If the airbag readiness lamp is lit, do the following

The driver and/or adult passengers should check for any objects that may be lodged underneath the front passenger seat or cargo interfering with the seat.
If objects are lodged and/or cargo is interfering with the seat; please take the following steps to remove the obstruction:
• Pull the vehicle over.
 
• Switch the vehicle off.
 
• Driver and/or adult passengers should check for any objects lodged 
underneath the front passenger seat or cargo interfering with the seat.
 
• Remove the obstruction(s) (if found).
 
• Restart the vehicle.
 
• Wait at least two minutes and verify that the airbag readiness lamp is 
no longer illuminated
 
• If the airbag readiness lamp remains illuminated, this may or may/not 
be a problem due to the front passenger sensing system.
DO NOT attempt to repair or service the system; take your vehicle immediately to an authorized dealer.
If it is necessary to modify an advanced front airbag system to accommodate a person with disabilities, contact the Ford Customer Relationship Center at the phone number shown in the Customer Assistance chapter of this Owner’s Guide.
WARNING: Any alteration/modification to the front passenger seat may affect the performance of the front passenger sensing system.
Determining if the system is operational
The supplemental restraint system uses a warning indicator light in the instrument cluster or a back-up tone to indicate the condition of the system. Refer to the Warning lights and chimes section in the Instrument Cluster chapter. Routine maintenance of the airbag is not required.
A difficulty with the system is indicated by one or more of the following:

• The readiness light (same light 
for front and side airbag system) 
will either flash or stay lit.
 
• The readiness light will not 
illuminate immediately after ignition is switched on.
 
• A series of five beeps will be heard. The tone pattern will repeat 
periodically until the problem and/or light are repaired.
If any of these things happen, even intermittently, have the supplemental restraint system serviced at an authorized dealer immediately. Unless serviced, the system may not function properly in the event of a collision.
See also:
Driving Impressions
   Lincoln has made some significant improvements in the Navigator’s driving 
experience, just asFord has moved ahead with the 2003 Expedition, which is a 
close relative to Lincoln’s SUV. The Navigato ...
   
Seat-mounted side airbag system
   WARNING: Do not place objects or mount equipment on or 
near the airbag cover on the side of the seatbacks of the front 
seats or in front seat areas that may come into contact with a 
deploying ai ...
   
Adaptive cruise control
   Collision warning is paired with adaptive cruise control (ACC) because both
features use the forward-looking radar system. With a range of up to 600 feet,
ACC monitors and adjusts vehicle speed to k ...
   
