dash lights blink on and off then engine stalls

Symptoms indicate a possible loose ground connection somewhere.

I would check the battery connection first.

Yeah, battery was replaced a ,month ago and is fine. Can't seem to find any bad grounds.
I took the PCM out and banged on it while the car was idling and nothing happened.
I've also read about a possible bad ignition switch is that worth a look?
Also where is the BCM on this car?

Did the problem began after the battery was replaced or before?

The new battery was in for a month or two and everything was fine. The problem just started a couple days ago.
I found this video on Youtube my car is doing the same thing only mine stops when you turn on the hazards not the turn signals.

http://www.youtube.com/watch?v=NSjnagtYQ7g

Thanks

I would call the dealerships service department and describe the problem to them, to see if they have any recall. It could be the multifunction switch creating the whole problem or the ignition switch itself.
Good luck.

Vehicle is equipped with BCM and it is possible that is the cause.
Get a scan done to check for trouble codes.

Where is the BCM located on this car? It's not in my haynes manual.
Thanks

P.S> I did a scan. Got some ABS problems and an O2 sensor problem.

BCM is behind left side of dash, left of steering column. It could be the ignition switch as per the link you gave as the hazard lights and turn signals are related.

Near steering column there are 2 gdounding points, check those as they are for the BCM.

Found both grounds down there. they were fine.
Replaced the ignition switch and so far the car is running great. a few more days will tell for sure as this was an intermittet problem.
I have used this site and many like it to fix prblems in the past and I hate when a thread just dies without a resolution or wanders off topic. I will re-visit and post if the ignition switch does not solve the problem.
One more thing about dealerships:
I try to stay away from them as they usually leave me frustrated and broke.
Thanks very much for your help and thanks for sticking with it past the "take it to a proffessional" stage. I know you guys have a lot of questions to answer but I wouldn't be here if I had planned to throw up my hands and give in so easily.

Our aim here is to help and not only to give advice or answers but to help you resolve the problem. As long as you don't give up and can follow what we have to offer we would be with you all the way.

Keeping our fingers crossed.

Good luck.

Just a follow up here folks. The ignition switch has cured the problem and the car has been running fine for the last month!
Thanks very much

You're welcome.

Glad to know the problem is fixed.

03 RegalGS experiencing engine shutoff all full dash flashing. Security light was on just before this. I turned key upside down and engine started, security light off. Based on comments above sounds like ignition switch/key issue. Visiting dealer today with your blog! Thanks.