2010 Lexus RX 450h User Guide 2 - Page 614
2010 Lexus RX 450h Manual
Page 614 highlights
5-2. Steps to take in an emergency If your vehicle overheats The following may indicate that your vehicle is overheating: l "ENGINE OVERHEAT" is shown on the multi-information display: The engine may be overheating. l "HYBRID SYSTEM OVERHEAT" is shown on the multi-information display: A hybrid system component such as the power control unit or an electric motor (traction motor) may be overheating. Follow the correction procedure as described below. Correction procedures n If "ENGINE OVERHEAT" is shown on the multi-information display STEP 1 Stop the vehicle in a safe place and turn off the air conditioning system. STEP 2 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 3 Remove the engine compartment cover. (→P. 478) STEP 4 Check to see if the cooling fans are operating. If the fans are operating: Wait until the "ENGINE OVERHEAT" message disappears and then stop the hybrid system. If the fans are not operating: Stop the hybrid system immediately and call your Lexus dealer. 620