Toyota 2013 Prius Owner's Manual page 171

1-4. Opening, closing and locking the doors
CAUTION
Do not pull on the back door damper stay to close the back door, and do
●
not hang on the back door damper stay.
Doing so may cause hands to be caught or the back door damper stay to
break, causing an accident.
If a bicycle carrier or similar heavy object is attached to the back door, it
●
may suddenly shut again after being opened, causing someone's hands,
head or neck to be caught and injured. When installing an accessory part
to the back door, using a genuine Toyota part is recommended.
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PRIUS PHV_OM_OM47787U_(U)
When closing the back door, take extra
●
care to prevent your fingers etc. from
being caught.
When closing the back door, make sure
●
to press it lightly on its outer surface. If
the back door handle is used to fully
close the back door, it may result in
hands or arms being caught.