Some models may have a problem with stalling under light acceleration. Updated software for the powertrain control module (PCM) is available which may help with this concern.Google+
Car Problem Reports
Mazda Mazda5 Updating PCM Software Will Help Problem With Stalling Under Light Acceleration
Mazda Mazda5 Problem
Average Mileage: 62,666 mi (10,000 mi - 106,000 mi)
Visitor, 2009 Mazda Mazda5, 88,000 mi
Hesitation/stall on acceleration and rough idle with AC compressor on. Spark plugs were replaced @ 60,000 mi with Yttrium Plugs.
happened at 10000,30000,45000 with the crash(brakes stopped respond too), 55000, 65000 mazda dealership didnot find anything and keep saying there is no problem with the car.
Visitor, 2007 Mazda Mazda5, 54,000 mi
Idle, slow speed, light acceleration and car stalls.
Visitor, 2006 Mazda Mazda5, 66,000 mi
losing power steering,car wants to die idling or under light accelleration,during which all dash lights flash on and off not fixed yet