Tesla's vehicles are well-equipped for winter temperatures.
@lovemesomemusk
Teslas are among the most efficient electric vehicles in cold weather, according to a Recurrent study.
Cold weather often affects the range of electric vehicles due to two reasons. The colder weather alters the battery’s chemistry slightly; therefore, the range is decreased. The decreased range could mean some owners may have to modify their trips in the winter months when compared to warmer seasons.
However, the biggest contributor to the decreased range for electric vehicles is due to heat production. Since electric vehicles are much more efficient than their internal combustion counterparts, they produce very little excess heat. Whereas heat is a byproduct of gasoline engines and can be funneled into the cabin to heat the passengers, electric vehicles need to produce additional heat to keep their passengers comfortable.
Resistive Heaters
This is typically done in two ways, either through electric resistance heating or through a heat pump. A resistive heater is like a space heater you may use at home. Electric current passes through wires causing them to heat up and the heat is then blown into the room.
Heat Pumps
Heat pumps are more complicated and work much differently than resistive heaters, however, they're also more efficient in most cases. They work by using outside air to warm up a refrigerant that is then pressurized to increase the temperature of the refrigerant. The refrigerant then flows to the inside of the cabin where the vehicle air passes through it, causing it to warm up and flow into the cabin. While heat pumps are much more efficient when compared to electric heaters, that efficiency is reduced the colder it is outside.
Which Teslas Have Heat Pumps
All newer Teslas use heat pumps instead of resistive heaters due to their increased efficiency. All redesigned Model S and Model X vehicles use heat pumps, as well as all Model Ys. However, some Model 3 vehicles between 2017-2020 use resistive heaters to warm the cabin, which makes them less efficient in colder months.
Find Out Your Type of Heater
If you don't know whether your Tesla has a heat pump or a resistive heater, you can find out by simply looking at your car's software. Your vehicle's heater type will be listed if you navigate to Controls > Software and then tap on Additional Vehicle Information.
Due to Tesla's unique heating system and its efficiencies, Recurrent found that Tesla vehicles hold some of the best range among electric cars. So, Tesla owners may not have to make as many modifications to their commutes. They're able to manage this because of their state-of-the-art battery technology, as well as using localized heating through heated seats, steering wheel, and cabin, as well as their advanced heat pumps.
Tesla's vehicles are well-equipped for winter temperatures.
RecurrentAuto
A new study published by Recurrent pulled data from 7,000 electric vehicles from the 14 most popular brands, including Audi, BMW, Hyundai, and Tesla. The data for each vehicle was gathered via the onboard telemetry and real-time usage. The vehicles were used in freezing (20-30 degrees F) temperatures and warm 70° F. As temperatures drop below 50° F, heat pumps start becoming less efficient.
Recurrent’s findings concluded that Tesla’s Long Range AWD Model Y and Model X 75D lost 15%, while the Long Range Model 3 with 75kWh battery lost 17%, and Model S P100D lost 19%. Compared to the Chevy Bolt, which lost 32%, and Ford’s Mustang Mach-E, which lost 30%, Tesla’s vehicles appear to be better equipped for cold weather. Unfortunately, Recurrent tested older Teslas that did not contain heat pumps, which means that Teslas numbers would have been even better if Recurrent used newer models. Even so, Tesla had some of the best performing vehicles.
Comparing Heat Pumps vs Resistive Heaters in Teslas
Tesla’s Vice President of Vehicle Engineering, Lars Moravy, recently took to X and opened the floor for user input. There, he asked the community for features and improvements they’d like to see to make Teslas better heading into 2026.
This post generated thousands of suggestions - and we recapped the best of them. There were also a few that Lars responded to, giving owners hope for some much-requested future changes, so let’s take a look at what may be coming
Lumbar Profile Support
Today, lumbar support is one of the few items that is not saved in the Tesla profile. That means if you have multiple drivers who use the same vehicle, you’re often left adjusting this setting manually, as it retains the setting that was last used. One community member suggested saving your lumbar setting to your profile just like Tesla does for other seat settings.
Lars said making this change seems doable, but it’ll take some engineering magic. The lumbar support isn’t tied to an absolute sensor like the other seat settings. This suggests that Tesla does not have an exact value to save, as it does with other seat functions, but Lars believes Tesla can find a way to save lumbar preferences. Tesla could potentially time how long the motor runs to get to the user’s lumbar setting and save this value.
With that said, it seems the vehicle engineering team may take a look at this one, and we may see it included in a future update.
Model 3 Signal Stalk Retrofit
The move away from traditional stalks in favor of the steering wheel buttons on the Refreshed Model 3 has been a point of debate. While the author is squarely in the camp of steering wheel buttons (at least with the Cybertruck), many dissent and say that the buttons on the Refreshed 3 aren’t as satisfying or easy to use.
Many other drivers also prefer the tactile feel and muscle memory of a physical stalk for signaling. Tesla appears to favor stalks, as they retained the turn signal stalk with the new Model Y. There are also rumors that Tesla is going to reintroduce the turn signal stalk to the Model 3.
If Tesla adds stalks back to the new Model 3, current 2024+ Model 3 owners are still left without stalks. However, a user suggested adding stalks as a retrofit option. Lars said that he would try to consider a retrofitted signal stalk for the Refreshed Model 3, similar to the simplified version in the Refreshed Model Y.
While less definitive than the lumbar support response, it appears that Tesla may at least consider offering a stalk retrofit for the new Model 3. If you’re a lover of signal stalks and can’t wait for Tesla to get an official one - we recommend the Enhauto S3XY Stalks, which are customizable and feel very close to Tesla’s original fit and finish.
With that said, it’s nice to see Tesla incorporating more community feedback into its vehicle design these days. Perhaps one day, they’ll address the infamous auto wipers. They have gotten better, but they’re still not as reliable as what’s available in most other vehicles. With that said, we look forward to the changes that will emerge from these recent conversations.
Sometimes, even with Tesla’s intensive bug-testing regime, bugs manage to make it out into the wild. In this particular case, a European user (@darkwaffle48484 on X) noticed that their 2024 Model 3 was using up more battery than normal while parked. Normally, they noted that the vehicle would lose about 1-2% per week; however, recently, they noticed much larger drops of 3-4% per night.
They monitored their Tesla widget and noticed the car wasn’t entering deep sleep. The widget consistently showed a recent connection time—usually within the past 45 minutes.
Fix Inbound
After discussing the issue with other Tesla owners and realizing it was somewhat widespread, they contacted Tesla Service. The service team confirmed that it was a firmware bug affecting the Telematics Control Unit (TCU), which prevented the vehicle from entering deep sleep mode.
The TCU is essentially the communications hub of your Tesla - and is mounted on the ceiling of newer vehicles such as the Model 3 and the new Model Y. It enables cellular and location services (via GPS) and also handles Wi-Fi and Bluetooth services. Tesla Service stated that this bug is planned to be fixed in update 2025.14.6, although the exact version number could change. However, they confirmed that they are aware of the issue and it is being addressed.
When the user reached out to Tesla Service, Tesla Service responded with the following (translated from Dutch):
“It has been confirmed that this is a firmware bug. The fix is in one of the next updates. Currently, it is planned for 2025.14.6 (subject to change). Do you have any more questions?”
Potentially Region-Specific
This bug could potentially be region-specific. TCUs often require specific hardware components, such as modems, as well as specific firmware versions that support different regions and cellular providers. These enable Tesla to comply with local cellular standards and regulations and ensure that your vehicle can connect to the networks available in that particular region.
At this point, it’s not clear when the fix will roll out, but given that update 2025.14.1 has practically stopped rolling out, Tesla may be waiting to resume the rollout with update 2025.14.3 or this 2025.14.6 version.
If you’ve noticed this issue and are in a non-European nation, let us know.
![Tesla's Hidden 'Elon Mode' Unveiled: A Sneak Peek into the Future of FSD [Video]](https://www.notateslaapp.com/images/news/2022/fsd-beta-inside_300w.jpg)
![Tesla's 2025 Q1 Earnings Call: How to Listen [Listen to Replay]](https://www.notateslaapp.com/img/containers/article_images/multiple-models/group_81.jpg/b2695a53b51e4c7927802deba2534b09/group_81.jpg)
![Elon talks about Twitter and job cuts at Bloomberg forum [video]](https://www.notateslaapp.com/images/news/2022/elon-musk-qatar-forum_300w.jpg)
