Replacing antifreeze in 2010 Yaris 1.3 (GB)

[Carryduff]

Hi, this is my first Toyota and I would appreciate some help in how to change the antifreeze as I'm not sure if this would be included in the normal service.
I really need to know how to completely drain the system and the bleeding process during refill. Like all makes, I'm sure there's a right and wrong way of doing it so thanks once again in advance.

[SirDigby]

you just drain from the petcock at the bottom of the radiator. the hose at the bottom runs to the block, so if you want that to drain too, you'd need to get the engine warm, but not super hot, just enough for the thermostat to open. there is no need to use any kind of block cleaner or anything unless you had a leak some where or had some strange coolant in it. if you get a spill-free funnel it's very easy to burp system. it attaches to the radiator cap and allows the system to breathe wile not making a mess.
1.warm-up
2.drain
3.fill (recommend factory coolant)