GR Yaris Handbrake adjustment - too "ungrabby" in stock form

[GR17]

I am barely over 1000km in my GR Yaris but one thing I kept noticing ever since the delivery is the handbrake and how it doesn't grab unless I pull really hard on the handbrake. The car even rolled couple of times when I parked in a slight hill. This is not what I am used to from previous cars. I have seen this issue getting mentioned under this post. It is also mentioned that there is a way to adjust this, how would that be?

I am trying to understand why it comes like that from the factory, is there a reason for it? If I was to adjust the handbrake to grab earlier could this have any unwanted side effects?

Thanks!

 

[Michael Knight]

it gets loose quite easily so needs constant adjusting. not the best design imho

 

[Yaris San]

grips well if it's adjusted correctly, must be done in the rear hub not cable in cabin, it's a regular adjuster that most vehicles use so rear wheel off and screwdriver through adjuster hole , might need watch some videos if not sure or take to local garage