Buyer cooldown period on used cars?

[Angeldust]

ok. i need to know where i stand.


i traded my car on a certified holden used vehicle from a Holden yard.
I got finance through Holden on the new one. They deal was signed on thursday 2nd aug and they let me drive the car home same day.

i had to return it on friday for a check engine warning light, which they looked at but when i drove it home that afternoon from work it still had the same problem. The car got booked in on monday (yesterday) and they have had it all this time and still want it tommorow to fix whatever problems it has.


Now at this point i would like to back out of this purchase.

How long is my buyer cool-off period and can i still get a 'refund' or is it too late? Im in brisbane btw.


Thanks for any input.