Lincoln 2010 MKX Owner's Manual page 145

The fact that the airbags did not inflate in a collision does not mean that
something is wrong with the system. Rather, it means the forces were
not of the type sufficient to cause activation. Side airbags are designed
to inflate in side-impact collisions, not roll-over, rear-impact, frontal or
near-frontal collisions, unless the collision causes sufficient lateral
deceleration.
WARNING: Several air bag system components get hot after
inflation. Do not touch them after inflation.
WARNING: If the side
airbag has deployed, the
airbag will not function again.
The side airbag system
(including the seat) must be
inspected and serviced by an
authorized dealer. If the airbag
is not replaced, the unrepaired
area will increase the risk of injury
in a collision.
Determining if the system is operational
The SRS uses a readiness light in the instrument cluster or a tone to
indicate the condition of the system. Refer to the Airbag readiness
section in the Instrument Cluster chapter. Routine maintenance of the
airbag is not required.
Any difficulty with the system is indicated by one or more of the
following:
• The readiness light (same light as used for front airbag system) will
either flash or stay lit.
• The readiness light will not illuminate immediately after ignition is
turned to the on position.
• A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and light are repaired.
If any of these things happen, even intermittently, have the SRS serviced
at an authorized dealer immediately. Unless serviced, the system may not
function properly in the event of a collision.
Seating and Safety Restraints
145