Tesla has been continuously improving and adding features to its Service Mode feature, and update 2024.44 is no exception.
Tesla also recently launched Service History for vehicles. With the new additions to Service Mode and price cuts to ToolBox 3 (TB3), their in-house service software, Tesla is really pushing Service accessibility.
If you’re interested in knowing more about Service Mode in general, check out our Guide to Service Mode.
Service Mode Improvements in 2024.44
This update introduces several new Service Mode features, so we’ll break down each new feature in Service Mode for 2024.44. Thanks to @max_bracco on X, who shared these photos with us.
Brakes Panel
The Brakes Panel has been updated to allow for the diagnosis of wheel speed sensors, which were previously only accessible in TB3 while physically connected to the vehicle. In addition, information on the Electronic Parking Brake, Electronic Stability Program and iBooster (Electromechanical Brake Booster) are now available in the Brakes Panel as well.
This new panel is under Chassis > Brakes and has multiple subpanels with brake details. This update is exclusive for the Cybertruck.
Brake Burnishing Update
Brake Burnishing is a process to help condition or break in your brakes, helping to make sure you’ll get optimal performance out of them. It can also be used as regular maintenance for an EV - because you’ll rarely use your friction brakes with Tesla’s one-pedal driving.
The update to Brake Burnishing will now allow you to continue performing this service task even if the vehicle goes into reverse. Previously, any UI, including the rear-view camera, popping up would cancel Brake Burnishing and close the service window - meaning you’d have to restart.
Placing the vehicle back in drive automatically resumes the service task, which makes it easier to do so in a smaller location.
This improvement applies to all vehicles, including legacy Model S and X.
Speakers Panel and Audio Test
A Speakers Panel has become available for some vehicles to help diagnose issues with any of the internal vehicle speakers. You’ll be able to play test tones through any selected speaker or set of speakers. This could be helpful to figure out if a speaker isn’t working properly or to diagnose a rattling speaker or subwoofer.
As part of the Audio Test, you can also play specific frequencies - helping to figure out what exactly is wrong with the speaker. Previously, you’d have to use TB3 to perform this test, so it's nice to see Tesla moving things to Service Mode and increasing accessibility for owners and third-party technicians.
This new speakers panel is only available for the 2024+ Model 3, and the Model Y with the AMD Ryzen infotainment processor.
SCCM Update
The Steering Wheel Control Column (or Yoke) has received updated graphics to correctly display what you’ve got equipped in your vehicle. You’ll also be able to initiate the steering wheel/yoke swap on a Model S or Model X in this UI as required, assuming you’re swapping them.
Previously, this feature was only accessible to Tesla’s Service Technicians or through a fairly complex procedure in TB3 that required outside scripting support - well beyond the knowledge and skills of most third-party technicians who aren’t intimately familiar with TB3. This makes the procedure something that can be done by the user at home - as long as you’re following the Service Manual carefully.
This is only applicable for the Model S and Model X. The Cybertruck has a special Steer-by-Wire panel in Service Mode.
Interior Lighting Diagnostics
Not a Tesla App
The last item to get added to Service Mode is an entirely new panel for testing the ambient lighting system, which is availablle for the new Model 3 and Cybertruck. This panel allows you to diagnose and repair the vehicle’s RGB lighting. It also allows you to view the health state and run an RGB lighting addressing routine, which is required when replacing some of the lighting strips.
Earlier this summer, Tesla also added a Battery Health Test to Service Mode.
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Tesla recently published an article on X detailing some of the improvements they’ve made to the Supercharging ecosystem to make it better for everyone. And boy, have they made a lot of improvements just this year - and with the recent announcement of the V4 Supercharger Cabinets capable of 500kW, it's going to get even better next year.
Since Tesla began opening its Supercharger sites to approved third parties, one key point of contention has been the charge port location. Every Tesla has its charge port on the rear left side of the vehicle, behind the driver. Superchargers before V4 rely on this location, and thus, non-Tesla vehicles with a port in a different location sometimes have to take up two stalls to charge.
Supercharger Improvements
Tesla has been making many improvements recently, even looking beyond the more powerful V4 cabinets coming in early 2025. Let’s take a look at all the work they’ve done and what’s coming up as well.
Cars Plugged In & Faster Data
One of the key updates has been to improve the overall accuracy of stall availability - the backend system refreshes fairly quickly, providing an accurate stall count - which helps to improve navigation and trip planner improvements too. Tesla announced that it’s now able to detect what type of EV is plugged in so that it can better assess charging estimates and determine if a vehicle may be taking up two stalls and automatically takes this into account when routing vehicles.
Max de Zegher, Director of Supercharging North America, mentioned on X that the stall availability now refreshes every 15 seconds, and with mapped Supercharger site layouts, Tesla can see which stalls are available.
The updated stall availability algorithm is a big improvement, with nearby refresh rates now every ~15 seconds. We know car types plugging in and mapped out Supercharger site layouts, to know which stall is not available at short cable sites. Your Tesla's touchscreen now shows… https://t.co/5PF7wruNhQ
As part of the V4 Supercharger stall upgrade, Tesla has been deploying stalls with longer cables and stalls with built-in adapters for CCS vehicles. These new longer cables mean that Tesla’s Supercharger sites can serve more vehicle charge port layouts without having to block a stall. That increases site availability, and Tesla expects to have more V4 charging stalls in the next 18 months than it has V2 and V3 stalls today. Some of these will be due to new locations, but Tesla is also updating current Supercharger locations.
Modifying Current Superchargers
Tesla has also been working to modify its site planning and layouts—both sites that are already built and sites still in planning. Over 1,500 sites have been altered to better serve drivers by widening the parking spaces, ensuring that drivers never have to use more than two ports to charge.
Pull-Through Trailer Chargers
Another big one is the deployment of pull-through Supercharger Trailer spots. These spots mean you don’t need to unhitch your trailer from your vehicle before supercharging, which is excellent for vehicles like the Cybertruck when you’re towing a trailer and need to charge up before continuing on your trip. Tesla update 2024.44 also adds the ability to see which Superchargers have trailer-friendly charging stalls.
The Pull-Through Priority Signs
Not a Tesla App
Standardized Port Location
The last - but one of the most important - things that Tesla is doing is encouraging manufacturers to move their charge ports to either the rear left or front right of vehicles, thereby helping to improve compatibility with Supercharger sites. Manufacturers have already taken steps to standardize in Europe, but these changes really haven’t rolled out globally yet. Rivian recently announced that the charge port for their upcoming R2 and R3 vehicles will be in the rear driver’s side, matching Tesla’s port location.
We hope to see more improvements in this space, especially as NACS becomes the de facto standard in North America.
Sometimes, in extremely cold weather, especially if it’s actively snowing and you’re Supercharging, the charging cable can freeze and get stuck to the vehicle. That can be a bit of a hassle at a minimum—or cost you dearly if the cable is stuck at a Supercharger and you’re accruing idle fees.
If you use the “Rear Defrost” button in the Climate Controls, your Tesla's charge port will also automatically defrost. However, it’s not obvious to most users that the rear defrost button also turns on the charge port heater. While we’re talking about what’s not obvious, the rear defrost button also turns on your heated mirrors.
There are other ways to turn on your change port heater, but none of them are dedicated to the function. Preconditioning your vehicle or hitting the “Defrost Car” button in the app, will also turn on the charge port heater.
Sadly, the last two options also heat your cabin, which isn’t exactly needed every time. That can be annoying - because it’ll heat your cabin very fast, given the strength and effectiveness of Tesla’s heat pumps.
Your vehicle will also defrost the port if you’re en route to a Supercharger, so it’ll have the port warmed up and ready to receive the connector - ensuring the flap isn’t stuck. However, it’s not helpful if the cable gets stuck while your’re charging.
Charge Port Defrost
Tesla has finally added a solution to this problem. You can now manually turn on the charge port heater by going to Controls > Service > Charge Port Heater. However, the feature is not available on all vehicles. It’s only appearing in the release notes for a very small segment of vehicles. We’ve confirmed that it is showing up on a 2024 Model X and some 2023 Model Ys on Tesla software update 2024.44.3.1.
Which Vehicles Have Charge Port Heaters?
Every Tesla has been equipped with a charge port heater since late 2020, and some older vehicles may or may not have the necessary equipment. The cut-off date for charge port heaters appears to be approximately September 2020, but some vehicles produced earlier may have it.
However, the release notes only show the charge port heater option for a small selection of vehicles. If your vehicle was manufactured after 2020, you can check if you have the new option by going to Controls > Service or looking under the “Minor Updates” section of your release notes. The release notes will state the following item if the new option is available:
“Heat your charge port in case your charge cable is frozen stuck. Go to Controls > Service > Charge Port Heater.”
This is a great addition for people who live in colder climates - and super useful. If you happen to have parked with your charge port facing blowing snow, you’ll know the struggle of the port and cable freezing together - and some people even buy third-party shields to cover the connector port while charging to keep this from happening. The next step for Tesla will be to automatically heat the charge port when you’re nearing your scheduled departure state of charge to allow for easy unplugging.
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