Toyota 2015 Prius Owner's Manual page 427

426
7-3. Do-it-yourself maintenance
5
Holding a rag under the end, pull the dipstick out and check the
oil level.
1
Low
2
Normal
3
Excessive
 Flat dipstick
The shape of the dipstick may differ depending on the type of vehicle or
engine.
6
Wipe the dipstick and reinsert it fully.
PRIUS v_OM_OM47887U_(U)
 Non-flat dipstick
Measuring side
I n f o r ma t i o n P r o v i d e d b y :