It’s that time of year again. A cold snap across many areas of the U.S. has sparked a recurring debate about the performance of electric vehicles in extremely cold conditions. Contrary to the negative portrayal by some legacy media outlets, data and experiences from one of the coldest countries globally provide compelling evidence of the robustness and reliability of EVs, particularly Teslas, in frigid temperatures.
Norway's Real-World Experience with EVs in Cold Weather
Renowned for its harsh winters, Norway has become a global leader in electric vehicle adoption. Interestingly, recent reports from Norwegian rescue services and insurance companies shed light on the performance of EVs versus traditional fossil-fuel vehicles during the recent extreme cold wave.
Svein Setrom from Viking Assistance group told TV2 (and reported by Electrek) that there is a significant increase in service calls this winter, with electric cars proving to be more resilient in the cold. According to Setrom, only 13% of starting difficulties involved electric cars, despite them making up 23% of the country's vehicles. This data highlights that EVs, including Tesla, are almost twice as effective as fossil-fuel cars in cold conditions.
Tesla's Dominance in Norway
Cold weather is nothing new in Norway, the fifth coldest country on the planet. Despite the challenges posed by cold weather, Tesla's popularity continues to soar in Norway. In 2023, Tesla led Norway's car sales for the third consecutive year, with almost five out of six new cars sold being battery-powered. This success is evidence of the efficiency and reliability of Tesla vehicles, even in one of the world's coldest countries.
The continuous growth in Tesla's market share, now standing at 20%, clearly indicates Norwegian consumers' confidence in electric vehicles' performance, even in extreme weather conditions.
Misconceptions About Teslas in Cold Weather
Contrary to some reports, Teslas are designed to cope well with cold temperatures. While it's true that battery efficiency can decrease in extreme cold, leading to reduced range, this issue is not exclusive to EVs. Fossil-fuel vehicles also experience a drop in fuel efficiency in cold weather. Tesla provides comprehensive guidance in their manuals for cold-weather maintenance, and these state-of-the-art vehicles are packed with technology to make winter driving more comfortable.
There are simple practices for Tesla and other EV owners to maximize performance in cold weather. Some recommendations include regular maintenance charging, occasional longer trips to warm up the battery, and avoiding car washes on extremely cold days. These practices and features, like pre-conditioning and battery management systems, ensure that Teslas remain a reliable choice even in harsh winter conditions.
The experience in Norway and real-world data dispel the myth Tesla underperforms in cold weather. Instead, these vehicles have proven more reliable and efficient in extreme cold than their fossil-fuel counterparts. As electric cars continue to gain popularity globally, it's essential to base discussions on facts and real-world experiences rather than unfounded assumptions. Tesla's success in Norway, a country known for its challenging winters, is a clear indicator of the robustness and reliability of EVs in cold climates.
Service Mode allows anyone to access service-related features that help troubleshoot vehicle issues. It’s available for free to all Tesla owners, but caution should be exercised when making any changes. More information about how to access Service Mode is available in our Service Mode guide.
In update 2025.2, Tesla improved two existing Service Mode panels:
Brake Burnishing - Brake burnishing helps condition new brakes and rotors. Tesla states: “The Brake Burnish procedure parameters have been updated to reduce the need for coming to almost a complete stop during each cycle.
This change is available for all vehicles.
Charge Port Calibration - Users can now run a charge port calibration, which can help to either get the charge port to fully close or fully open if you’re having issues or if you’ve refitted or retrofitted the charge port on your own. This was previously a command-line tool in ToolBox3.
In the release notes for service mode, Tesla states: “The charge port door calibration routine (PROC_CP_X_DOOR-SENSOR-CALIBRATION) and charge port latch calibration route (PROC_CP_X_LATCH-CALIBRATION) have been added to the Charging panel. Those routines are required to be run following the replacement of the charge port or charge port door.”
This change only affects the legacy Model S and Model X.
Service Mode+ Updates
The rest of the improvements to Service Mode are exclusive to Service Mode+, which requires a subscription to Tesla’s ToolBox3 software and a connection to a computer. Tesla has added new panels and several improvements to Service Mode+ with update 2025.2.
Accessories Panel - “A new Accessories panel is available to view and change configurations for accessories during retrofits, such as tow package, power liftgate, and soiler. To access the new panel, tap Low Voltage > Accessories.”
Previously, technicians had to manually enter all these configuration changes using the terminal.
This is for all Model 3s and Model Ys.
Signal Viewer Panel - “A new Signal Viewer panel is available to monitor multiple signal values live on a graph. If one or more of the signal values is unavailable, the graph will stop updating. To access the new panel, tap Tools > Signal Viewer.”
This will help technicians diagnose issues in real time when they’re related to signal quality or signal noise throughout the vehicle’s internal electrical systems.
This new panel is available on all vehicles with the AMD Ryzen infotainment processor.
Noise Recording Panel - “To improve the user experience, the recording duration has been decreased to 30 seconds, and reliability of the download routine PROC_ICE_X_FETCH-DIAGNOSTIC-AUDIO-RECORDS has been improved.”
The Noise Recording Panel, which was introduced with the 2024 Holiday Update, has been better tuned to improve technician experience while debugging noises or audio issues within the vehicle.
This particular improvement is only for the Cybertruck.
There’s rarely a software update that goes out that doesn’t include improved or new Service Mode panels. While this update focuses more on improvements to Service Mode+, it still includes other improvements to Service Mode. While these updates are aimed at Tesla technicians and third-party technicians, they also help consumers’ right to repair.
Unplugged Performance makes some amazing performance upgrades for Teslas and other EVs. One of their most recent programs is UP.FIT - where they equip Tesla vehicles for police duty.
Law enforcement agencies have highly specific requirements and the UP.FIT program is designed not only to meet those requirements but exceed them. EVs also come with the additional benefits of reducing maintenance, repairs, and fuel costs.
And UP.FIT isn’t just for run-of-the-mill policing, Unplugged Performance also provides upfitted Tesla vehicles, including the Cybertruck, tailored for specialized roles such as tactical and defense applications. Let’s take a look at what real police officers think too.
“The difference is absolutely staggering. I don’t want to go back to this [ICE car] now.”
Hands-On With Teslas
Not a Tesla App
Police officers from eight different departments in California had the opportunity to participate in a unique event at an Emergency Vehicle Operators Course (EVOC) facility. Law enforcement agencies in North America and Europe are beginning to look at EVs more often, and finding a properly up-fitted EV for police work can be a challenge.
“I’ve never driven one until today, I have a different mindset here at 2:00 than I did at 6 a.m. this morning. I was not necessarily sold, but I am now.”
Unplugged Performance let these officers get hands-on with the Model Y Performance, and compare it to the industry-standard Ford Explorer PIU edition. They also got a chance to see some of the other UP.FIT lineup, including the Model S Plaid Interceptor and Cybertruck Patrol Vehicle.
Not a Tesla App
Reactions
The best part of this was the honest, real reactions from the officers who were trying out modified Teslas on the EVOC track.
“I might go buy one now!”
“I’m thoroughly impressed by how it handled and performed. It’s kind of made a believer out of me.”
“First time driving an electric car… The difference between the [Tesla and Ford] is staggering… I didn’t want to be in the Explorer anymore.”
Several comments talked about the handling of the vehicles - how fun they were to drive, how tight they cornered, and how fast they accelerated. They also mentioned that because of that performance - these cars were able to do things that the Ford Explorer just isn’t capable of.
And when doing simulated chases - our favorite comment “It’s like you don’t even have to try!”
Another fun data point that elicited some great reactions was the battery usage of the cars. The Teslas arrived at around 97% state of charge at 6 am, and at 2 pm, the cars still had about 55-60% of the battery left.
You can watch the entire video from Unplugged Performance below.
Teslas Just Make Sense
At the end of the day, the thing is, Teslas - and EVs in general - just make sense for patrol vehicles. Officers can leave the heat or AC running the entire time without having to idle an engine. EVs also perform far better than their ICE equivalents, and they reduce maintenance and fuel costs massively - especially when you can just charge a whole fleet of patrol vehicles overnight.
Many police officers have commented online and mentioned how they burn massive amounts of gas just idling away with their vehicles, which just continuously burns fuel and increases wear and tear on the thousands of components in an ICE vehicle.
Not a Tesla App
On top of that, this sold individual people - not just as officers but as consumers - on the idea of Teslas and EVs. Putting butts in seats in important, and it’s one of the best ways to convince naysayers that the future is already here.
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