Car won't start key won't turn in the ignition
ignition is in locked position key won't turn on 2004 Dodge Durango
Be sure truck is all the way in park and your foot is on the brake. Try again your truck has a shift interlock system on it that won't allow the ignition to be turned on if the truck is not in park and your foot on the brake. If both of those check out look at your brake switch it may not be working, so it won't send a signal to say your foot is on the brake.
Or try rocking the steering wheel if front wheels are turned. Possible ignition lock cyl problem also.