Short answer: if you drive an electric car in Minnesota, your garage is part of your winter range. A garage that stays warmer, a door that closes on its own, and sensors that can see an open hatch all make EV life easier. Here’s what matters and what’s worth fixing.
Why the cold matters for an EV
Batteries don’t like cold. In AAA’s cold-weather test at 20°F, average driving range dropped 12% with the heater off, and 41% with the cabin heater on, compared with 75°F (AAA via Manufacturing.net). Newer EVs handle cold better, but a Minnesota January still costs miles. Starting the day with a car that sat in a warmer garage helps.
1. Keep the heat in: door insulation and seals
An attached garage with an insulated door and good seals stays noticeably warmer than one with a thin door and gaps at the bottom. If you’re replacing the door anyway, see how to choose a new door and what R-value really means. Often the cheapest win is new weather seals.
2. Don’t let the door stand open: timer-to-close
A door left open for an hour in January dumps the heat you just saved. A myQ LiftMaster opener can close it automatically after a few minutes and alert you if it’s left open. See smart garage upgrades.
3. Protect the car: full-height sensors
Many EV owners park close to the door and open the frunk or hatch in the garage. Standard safety sensors only watch a few inches above the floor, so they can miss it. Infinity Shield makes a full-coverage sensor that, according to the company, covers the whole door opening with 25 beams and adds a parking-assist beeper. Owners on an EV forum describe using it to stop the door from closing on an open rear gate (Lucid Owners forum). Ask David whether it fits your opener.
4. Keep the charging cord out of the door’s path
Mount the charger and hang the cable so it never lies across the door opening or the sensor beam. A cable on the floor can trip the sensors (the door keeps reversing) or get pinched by the bottom of the door.
5. Plan for power outages
If the power goes out, the car is charged but the door won’t open. A LiftMaster opener with battery backup (built into the wall-mount 98022, an add-on on many others) lets you still get out. Also learn where your red emergency release cord is.
Garage door work by David (not stock photos)
Common questions
How much range does an EV lose in Minnesota cold?
In AAA testing at 20°F, average range dropped 12% with the heater off and 41% with the cabin heater on, compared with 75°F. Newer EVs may do better, but cold still costs range.
Does an insulated garage door help my EV in winter?
It helps keep the garage warmer than outside, especially if the garage is attached. A warmer garage means a warmer car and battery in the morning. Good weather seals matter as much as the door itself.
Can my garage door close on my EV’s open frunk or hatch?
Yes. Standard sensors only watch a few inches above the floor, so they can miss an open trunk, hatch or frunk. A full-height sensor such as Infinity Shield is made to cover the whole opening.
Can a charging cable make my garage door reverse?
Yes. If the cable lies across the door opening it can block the safety sensor beam, so the door keeps going back up, or it can get pinched under the door. Hang the cable so it stays clear of the opening.
Written by David Tuito, owner and technician of David’s Urgent Garage Door, St. Louis Park, MN (family-owned since 2019, MN State Contractor Registration #IR790255). This guide covers the garage door side; EV chargers should be installed by a licensed electrician.