2009 Toyota Prius Owners Manual - Page 480

OM47614U_PRIUS_U.book Page 454 Monday, January 11, 2010 11:02 AM 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: The high engine coolant temperature warning light comes on: The hybrid system may be overheating. Follow the correction procedure as described blow. Correction procedures STEP 1 Stop the vehicle in a safe place and turn off the automatic 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 STEP 3 STEP 4 Remove the engine compartment cover. (→P. 361) Check to see if the cooling fan is operating. If the fan is operating: Wait until the engine coolant temperature gauge begins to fall and then stop the hybrid system. If the fan is not operating: Stop the hybrid system immediately and call your local Toyota dealer. 454 PRIUS_U_(OM47614U)