2009 Toyota Highlander Owners Manual - Page 558

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 needle of the engine coolant temperature gauge enters the red zone: 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 needle of the engine coolant temperature gauge enters the red zone 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 the engine area. 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 Check if the cooling fans are operating. If the fans are operating: Wait until the engine coolant temperature gauge begins to fall and then stop the hybrid system. If the fans are not operating: Stop the hybrid system immediately and call your Toyota dealer. 532