2012 Toyota Prius Owners Manual - Page 551
2012 Toyota Prius Manual
Page 551 highlights
2 -3 . Ope ra t ing t he light s a nd w indshie ld w ipe rs H e a dlight cle a ne r sw it ch ∗ Washer fluid can be sprayed on the headlights. Press the switch to clean the headlights.
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