What NHTSA says the defect is
MAZDA IS RECALLING 30,600 MY 2007-2009 CX9 VEHICLES EQUIPPED WITH POWER ADJUSTABLE SEAT WITH POSITION MEMORY FUNCTION. THE SEAT HARNESS ROUTED UNDERNEATH THE SEAT CUSHION MAY INTERFERE WITH THE FRONT COVER BRACKET WHICH IS ATTACHED ON THE FRONT SIDE OF THE SEAT CUSHION. DUE TO THIS THE COVERING OF THE SEAT HARNESS MAY BE DAMAGED, THE CORE WIRE OF THE HARNESS MAY TOUCH WITH THE BRACKET AND RESULT IN SHORT CIRCUIT.
The risk NHTSA states
DRIVERS WILL EXPERIENCE CERTAIN FUNCTIONS THAT ARE UNCONTROLLABLE WHICH WILL CAUSE SERIOUS DIFFICULTIES IN DRIVING INCREASING THE RISK OF A CRASH.
The remedy NHTSA states
DEALERS WILL INSPECT THE SEAT HARNESS AND FASTEN THE SEAT FRAME WITH A CABLE TIE. THE HARNESS COVERING WILL BE REPAIR FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON OR BEFORE MARCH 16, 2009. OWNERS MAY CONTACT MAZDA AT 1-800-222-5500.
Campaign 09V066000 · reported to NHTSA 23 February 2009 · Read it on nhtsa.gov →