Question   Answer  
What are the series of clicks from the cargo area when I first turn the key in the ignition?   The high voltage battery is electrically isolated from the rest of the vehicle when the key is off. When you switch the key on, high voltage contactors inside the battery are closed to make the electricity available to the motor and generator and enable the vehicle to drive. The clicks are the sound of these contactors as they close and open during start up and shut down.  
Why does the engine sometimes start at key-on?   The vehicle's computer will determine if an engine start is required at key-on. Silent key start will start the engine if it is necessary for cabin heating, windshield defrost, or if the outside temperature is low.  
Why does it take a long time before the engine shuts down?   There are several reasons the engine stays on for an extended amount of time when you first start it. One common reason is to make sure that the emissions components are warm enough to minimize tailpipe emissions. As the climate gets cooler, this engine-on time is extended.  
Why does my engine never shut down above 85 mph (137 km/h)?   The engine is required to turn on above this speed to protect the transmission hardware.  
Why does my engine stay on when it is extremely cold outside?   In order to make sure that the climate control system can begin heating the cabin or defrosting the windshield as soon as a driver requests it, the engine coolant temperature has to be kept sufficiently hot. Keeping the engine on is required to maintain the correct coolant temperature.  
Why does my engine rev up so high sometimes when I accelerate?   Your vehicle's engine and transmission are designed to deliver the power you need at the most efficient engine speed. This may be higher than expected during heavy accelerations, and may fluctuate when driving at a steady speed. These are characteristics of the Atkinson engine cycle and the transmission technology that help maximize your hybrid's fuel economy.  
What is the fan noise I hear from the rear of my hybrid?   The fan noise comes from a fan located next to the high voltage battery pack. This fan turns on when the battery requires cooling air. The fan speed, and associated noise level, will change according to the amount of cooling required to maintain good performance. Maintaining the battery temperature at optimal conditions also prolongs the useful life of the battery and helps to achieve better fuel economy.  
Can I put E15 or E85 in my vehicle, and how will it affect my fuel economy?   Your hybrid vehicle can use E15 (15% ethanol, 85% gasoline) fuel, but you may notice slightly reduced fuel economy because ethanol contains less energy per gallon than gasoline. Your hybrid vehicle is not designed to use E85 (85% ethanol).  
How long will my high voltage battery last? Does it need maintenance?   The high voltage battery system is designed to last the life of the vehicle and requires no maintenance.  
Can you charge the battery with a plug into an AC outlet?   The Energi high voltage battery can be charged by plugging the vehicle into an AC outlet.  
There are no provisions for charging the conventional hybrid high voltage battery from a power supply external to the vehicle.  
Can I tow the hybrid behind my motor home with all four wheels down?   Yes.Your hybrid vehicle can be flat towed without modification.See   Towing.