"It's not something people know or think about," said Sally-Jo Pearce, support worker with RivMed.

For the past several weeks, Ms Pearce and fellow RivMed worker Annika Honeysett have travelled around the city's community hubs checking car seats free of price.

On Tuesday, at the Tolland Community Hub, they tested 30 seats, and found majority were in desperate need of re-adjustment. Having hosted another clinic at the Ashmont Hub on Thursday, a comparable amount of problems were found.

"A lot of them are just not installed properly, so that's easy enough to fix," said Ms Pearce.

"But a lot of people don't know [car seats] have an expiration. On the back of the seat there's a white sticker that tells you the date [it was made], it lasts 10 years after that."

Without the sticker, parents cannot be sure that the seat will protect their child sufficiently in an accident.

"Some of the seats we've seen don't even have the Australian standards sticker [on the back]. If it doesn't it can't be used."

At least two seats had to be seized on site in Tolland for that reason, which is more than they would have seen in years gone by.

Ms Pearce and Ms Honeysett believe that is a reflection on new purchasing habits.

"Instead of getting one new at a store where they're often fitted for you, people are picking them up second-hand on Facebook or on the side of the road," said Ms Pearce.

"You don't know how old it is, you don't know if it's been in an accident already," said Ms Honeysett.

Ms Pearce said a seat that has been in an accident will bear evident of the stress.

"You know when plastic bends it gets a white mark? That means it's been in an accident and needs replacing."

Another common misconception that Ms Pearce and Ms Honeysett have confronted during their sessions has been the age at which children graduate from the seat altogether.

"It's more to do with height and weight, not age. If you can keep them in a child seat for longer, then it's safer," said Ms Pearce.

"I have a four-year-old and I'll be keeping her in a car seat for as long as she needs it. It's a lot safer than a regular seatbelt.

"So often when you're driving around, you see people have got their kid in the front [passenger] seat. It's just so dangerous."

To assist Indigenous families in acquiring a safe car seat, RivMed have a limited supply to give away. Families will have to prove their adherence to a support criteria to qualify for the assistance.