2008 Toyota Prius Q&A

2008 Toyota Prius Question: Car engine noise happens when the battery is full

Car engine noise happens when the battery is full, especially when going down the slopes and the battery charge full... coming down when i Stomps on the accelerator whats the problem ?? -
Answer 1
Nobody knows! A Toyota tech 'might' if he test drove it then ran a diagnostic test. Oh you'll probably get plenty of gusses! Hang in there!! Here you go!! -
Answer 2
Are you using "B" mode when going downhill? -