The manual does mention an 'initialization' period after fitting a new battery, but doesn't say how long it takes! I haven't experienced this, perhaps because when the battery on mine has been replaced it's always had an auxiliary battery plugged into the OBD port. I only know the SS has performed normally immediately after.
There is also a list of conditions that have to be met for SS operation (doors shut, seatbelt on, etc) but all pretty obvious - page 70 of the manual.
The engine should also re-start after a stall when you push the clutch pedal in. If you try that it will at least tell you the re-start part of the operation functions.