My CX7 won't start at all and makes no sound when i turn the key. Battery seems fine, radio, headlights, power windows all have full power. My security indicator light continues to flash as if the alarm system is still on. My steering wheel wheel does not lock up like it usually does after the car is turned off not do the brakes seem locked. Anyone know what might be wrong. I turned the car on but realized i had forgot something important in the house and quickly shut the car off not more than a half second after starting it. It hasn't started since. Did i need something up in the ignition, or the alarm system. Please help if u know how to quickly fix it

 

Sounds like the alarm starter kill is engaged.
And whether its factory or aftermarket.
You have to google the reset procedure.