DALLAS (CBSDFW.COM) – Back in January, a desperate 911 call came in to Dallas Police from two women trapped in a car who were sinking fast in Lake Ray Hubbard.

The two turned onto a boat ramp and plunged into the water.

Back then the question was asked ‘How can you escape a sinking vehicle?’

That question was raised again after a woman and her 22-month-old child drowned Thursday night after an accident sent them into a pond in Southeast Fort Worth.

So what can you do?

WATCH: CBS 11 Report On How To Escape Sinking Vehicle

Chief Steve Carter with the Lewisville Fire Department told CBS 11 in February  that people should undo their seatbelt and try to roll down the window closest to you as far as possible.

“This allows you some finger room in a panic situation.  Adrenaline will kick in and will make you so much stronger it allows you some leverage to wiggle this window and possibly pop it out,” says Chief Carter.

And if that doesn’t work, Chief Carter said, “Position yourself in the car and kick out the window.”

In a non-submerged car it took CBS 11’s Arezow Doost a few kicks before the window she kicked was shattered.   But in rushing water and in the pitch dark it may have not been as easy.

Chief Carter says the front and back windshield would be harder to break and possibly get to, “You don’t want to go searching around because you don’t have the time to do all that stuff.”

There are also tools like an automatic center punch that can be helpful.  All you have to do is place it on the glass and tap it to shatter a window.

Either way, the best thing to remember is not to


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