Just been having a look on the UK Approved Used website, and to confirm my thoughts it looks like the manual doesn't have Auto Hold. I can't see the button for it anyway...
Regarding auto hold though, I can find it a bit sensitive. If you touch your accelerator a tiny tiny bit it will release. I've had it do it on a few occasions and been close to someone in front then and only notice i'm creeping forward at the last minute.