Carseats save lives. But parents can be lulled into a false sense of security: Your child can still die or suffer serious injury IN a carseat. News Specialist Kelley Day joins us live from Primary Children's Medical Center with the story.

If you're a parent - you have one of these (carseat). But if you use it the wrong way - you may end up here at the emergency room. So I went on assignment to find out - once and for all - how to protect your child from a "Parent's Deadly Mistake".

Looks pretty simple...strap in the carseat...strap in your child... and they're safe - WRONG. The fact is - 95% of Utah's car seats are used incorrectly.

Let's set the record straight. Infants up to one year or 20-pounds should have an "infant" seat. Put it in the back seat - at a 45-degree angle in the middle if possible. It has to be very secure, but not every seat fits every car.. so you have to apply a lot of pressure make it tight. Here's a trick - twist seatbelts - on either end to make sure it's snug. And for the record - Don't ever put a car seat in the front seat, especially if there's an airbag.

DR. NANETTE KUNKEL: CHILDREN HAVE HAD SERIOUS CERVICAL OR SPINE INJURIES LEAVE THEM PARALIZED OR THEY DIE BECAUSE SUCH A HARD FORCE.. GOES AT LIKE 200MPH.))

Children 20 to 40-pounds can graduate to a regular 'front facing' car seat. Now - if it's front facing - the straps should always be in the top slots. It should sit at a 90-degree angle, many parents forget to adjust the bottom. And most parents overlook this little gizmo - the Locking Clip. It holds the slack in the seatbelt so the car seat is secure…follow your instruction manual - and make sure it's tight. Also make sure you secure your child correctly.

((DEBI WOLFLEY/SANDY FIRE DEPT: HER SHOULDER STRAPS ARE AT SHOULDER LEVEL HER RETAINER CLIP IS AT ARMPIT LEVEL.. THE HARNESS STRAP HAS ONE OR TWo FINGERS BETWEEN THE CHILD AND THE HARNESS AND THE BELT IS DOUBLED BACK THROUGH.))

Finally - Older children - 40 to 60-pounds should ride in a booster seat. so the real seat belt fits them in the right spot. And children up to 12 years old should always sit in the back seat for better protection.

Finally - another common mistake in Utah - too many kids - not enough seatbelts. Last December - Steve Goodman and five of his 12-children were in a serious accident in Sandy. Three of the children died -- they were not strapped in and thrown from the car. 10-year old LeAnn, 11-year old Peter, and 12-year old David died at the scene.

((THAT WAS HORRIBLE FOR LIFEFLIGHT NURSES BECAUSE TOO MANY CHILDREN - WE DIDN'T EVEN HAVE ENOUGH HELICOPTERS THERE INITALLY IT WAS VERY SAD, SAD SITUATION THAT THERE WERE THESE CHILDREN THROWN ALL OVER THE ROAD.))

Many parents are considering new cars that have one of those 'built in' carseats. Experts say - they're great since they're 'built in' - they can't be thrown loose in an accident. And if you want to make sure you're using your carseat correctly, stop by your local fire department. They'll be glad to check it for you.