Ford 2010 Crown Victoria Owner's Manual page 284

Crown Victoria Severe Duty
BODY
Fire suppression system (if equipped)
Your vehicle may be equipped with an optional fire suppression system.
The fire suppression system is designed to help reduce the risk of injury
in high-speed rear impacts. The fire suppression system deploys
chemicals designed to slow the spread of fire or potentially extinguish a
fire, thereby providing more time for occupants to escape from a crashed
vehicle.
The fire suppression system is mounted beneath the vehicle and
attached to the frame above and forward of the fuel tank and rear axle.
The fire system control module is mounted inside the passenger
compartment centered underneath the rear seat cushion. The system is
designed to deploy automatically after sensing a high-speed/high-energy
rear end impact.
There is a covered manual activation switch mounted in a console on the
headliner between the visors that can be used by vehicle occupants to
manually deploy the system. The fire suppression system can be
manually deployed any time the key or engine is turned on by pushing
the button underneath the cover. The button can be accessed three
ways:
1. Pushing on the cover will release the cover latch, allowing the door to
swing open and expose the button;
2. The cover can be pulled open;
3. A firm strike on the cover (about 20 lbft [89 N•m] of force) will
deploy the system any time the key or engine is turned on.
In the event of a manual deployment, nozzles will deploy to near ground
level and the underbody of the vehicle will be covered with suppressant
fluid. The suppressant contains no hazardous materials (but may cause
minor skin or eye irritation) and can be readily cleaned up by flushing
the underbody with water (or soap and water). Manual deployment
should have no adverse affect on vehicle handling; however, caution
should be exercised in moving the vehicle as ground clearance will be
compromised by the deployed nozzles. Because of reduced ground
clearance, the vehicle should not be driven through an automatic car
wash with nozzles in the deployed condition.
The fire suppression system is a single use system—all major
components will have to be replaced in the event of a manual
deployment.
284
2010 Crown Victoria (cro)
Owners Guide, 1st Printing
USA (fus)