There is a normal cord like what a household appliance such as a vacuum cleaner in the front of my prius bumper. What is this used for and where do I store it at?
Your car may have been previously converted to a PHEV. Look under the carpet in the back and see if there is a battery pack there (where the spare tire is supposed to go).
Give it a try. Regardless of outdoor air temps, it'll get your car warmed up faster. One hour minimum would likely do. You can tell if it's working by feeling a few of the coolant hoses after it's been going a while. They don't get hot, just warm, especially the ones close to block heater.
