Engine Shut Off Without Warning problems of the 2008 Infiniti G35

My car has started stalling while driving, while driving! I have gone to the dealer to have issue fixed, once I get it fixed it happens again, and then the dealer says it might be something else. I have a small child and its terrifying knowing that if I'm on the highway my car will stall or anywhere for that matter. It's been happening for weeks, started at very low speeds and as of yesterday the engine shut off, no steering while going at a higher speed, I could have easily been in a wreck, or even killed someone walking. It's unsafe! there are many forums online regarding this issue with Infiniti vehicles and they don't care. Lawsuit waiting to happen.

When driving slow, 5 to 15 mph merging onto busy interstate 84 highway without warning the battery light, and brake light will come on and engine shuts off. The car lights, radio still work. Put the car in park start the engine and its starts up as normal. This car has gone to the dealer, and 2 other shops 800. 00 later its still having a stalling issue. I have a 4 year old and this issue scares me.