2011 Toyota Prius Owners Manual - Page 579

5 -2 . St e ps t o t a k e in a n e m e rge nc y I f your ve hicle ove rhe at s The following may indicate that your vehicle is overheating: l The high coolant temperature warning light comes on or flashes: The engine may be overheating. l "HYBRID SYSTEM OVERHEAT" is shown on the multi-information display: The power control unit may be overheating. Follow the correction procedure as described below. Correction procedures n If the high coolant temperature warning light comes on or flashes STEP 1 Stop the vehicle in a safe place and turn off the air conditioning system. Check to see if steam is coming out from under the hood. If you see steam: Stop the hybrid system. Carefully lift the hood after the steam subsides and then restart the hybrid system. If you do not see steam: Leave the hybrid system operating and carefully lift the hood. STEP 2 5 When trouble arises 557 PRIUS_U (OM47685U) DVD