Tesla has recently been making a spate of upgrades for legacy MCU1 vehicles, including FSD V12 for MCU1, but it also included a set of additional features in update 2024.26.3.1.
So let’s take a closer look at what Tesla has been cooking in the background for older vehicles!
Automatic Emergency Braking
Tesla has improved the Automatic Emergency Braking feature that was already available in MCU1 vehicles with upgrades from the 2023.12 software update, which includes automatic emergency braking while in reverse. What’s interesting is that although these features are available to other vehicles, they never made it into the release notes. Instead, we originally found them by searching through the 2023.12 owner’s manual. However, now that vehicles with MCU 1 are receiving the feature, Tesla decided to mention them in the release notes.
In the release notes Tesla states: “Automatic Emergency Braking now also works when your vehicle is in Reverse (R), not only in Drive (D). It applies the brakes if the vehicle detects an object in its path and a collision appears imminent.
Automatic Emergency Braking is on by default each time you drive.”
This specific upgrade likely also includes Automatic Emergency Braking for speeds over 100 mph in addition to working in reverse. AEB reduces the impact of collisions, reducing the likelihood of death or injury in a major collision. It’s fantastic to continue seeing Tesla focus on innovating in the safety department!
Reacting Perpendicular Vehicles
Another upgrade added to Automatic Emergency Braking recently was the addition of AEB reacting to perpendicular dangers (across) the vehicle path – for example, someone running a red light, or someone cutting you off. This is a huge improvement over the standard emergency braking that occurs for the vehicle in front. Tesla didn’t specifically call out this addition in the release notes for MCU 1 vehicles, but since those vehicles now seem capable of running the same AI model that powers FSD v12, we suspect this feature is also included.
In addition to FSD v12 and the Automatic Emergency Braking improvements, Tesla also made improvements to its Forward Collision Warning (FCW) system. When an FCW event occurs, the vehicle will now produced haptic feedback in addition to the audible and visual warnings.
These upgrades to Automatic Emergency Braking require HW3, which is a free upgrade for these vehicles from HW2 if the owner bought FSD.
At the end of the day, Tesla is clearly showing its commitment to continue to improve its vehicles – even older ones. Some of these MCU 1 vehicles with Autopilot HW 3 (originally HW 2) go back as far as 2016. This is a big deal for those who have been worried about the upcoming AI4/Hardware 3 divergence in FSD. Tesla’s continued work on older hardware is promising for users of Hardware 3 vehicles and MCU1 vehicles alike.
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Every Tesla update is filled with new features, but often there are smaller improvements that aren’t missed in the release notes and go unnoticed. Now that most users, except those on some FSD releases, have received update 2024.38, we’re taking a look at some of the features that Tesla didn’t mention in their release notes.
Service History
Mahtava
Tesla's new Service History, available through Tesla's Service Mode, lets owners and technicians add service records to the vehicle.
Each service record is permanent and can not be amended once it has been entered. You can enter a variety of service records, from simple owner-oriented tasks, such as windshield wiper replacements and adding washer fluid to motor or battery pack swaps. If you’re interested in learning more, read our deep dive into Service History.
With Tesla’s Holiday Update, Tesla also made this information viewable (read-only) for vehicle owners without the need to go into Service Mode. Owners can simply go to Controls > Service > Maintenance Summary to view their vehicle records.
Tesla App Commands
When you're in close proximity to your vehicle, commands issued from the Tesla app will now be executed quicker and more reliably by being sent over Bluetooth instead of relying on your phone’s and vehicle's internet connection.
This requires a recent version of the app, which can be Tesla app update 4.38or higher.
This feature is available for both iPhone and Android and supports all vehicles except the legacy Model S and Model X.
Curve Assist
Not a Tesla App
In certain regions, Tesla has added a new Curvature Assist feature that allows the vehicle to perform sharper turns while on Autopilot. When the feature is active, the vehicle will display "Curvature Assist Active" in the visualization area.
Simply go to Controls > Software, and underneath your car's VIN, you'll see the FSD hardware version of your car. The version can be cut off in some languages due to the longer text, but you can also tap the Additional Vehicle Information to view the Autopilot hardware version.
WiFi Diagnostics Tool
Tesla now includes a WiFi Diagnostics tool to help you improve your WiFi connection. It displays your connection’s status and speed and provides some tips.
To view WiFi Diagnostics, go to Control > Wi-Fi and tap on the blue Diagnostics link at the top.
The diagnostics tool allows you to see various details about the access point you're connecting to, your vehicle's MAC address, and your connection.
Improved Voice Recognition
Many users are also reporting voice recognition improvements in this update, especially in dialects other than American English. Tesla's voice command system now appears to better understand different accents and perform commands more reliably. While this isn’t the smart voice assistant we all wanted, many users are happy to be able to issue commands more reliably.
When viewing details for a Point of Interest (POI) on the map, you can now tap on “Nearby Parking’ to get directions to nearby parking lots or garages. This should make it easier to find parking for big events or busy areas.
Lower Volume in Reverse
@g3st4l1
Tesla has added a new option under Controls > Safety that lets the vehicle automatically lower the volume of any audio being played when the vehicle goes into reverse. The option is right next to Joe Mode, which lowers the volume of all sounds like turn signals and Autopilot beeps.
Set Arrival Energy
@g3st4l1
You can now choose the amount of energy you’d like to arrive with at your destination. Tesla will then take this into account when determining charging stops and charging times.
The Set Arrival Energy is a new option under trip details which you can get to by swiping up (or pressing the …) in the navigation module that shows your destination and ETA.
Adjust Passenger Seat On Screen
@g3st4l1
Tesla has added a new Seats option to its settings. It appears that it has several purposes, not only letting you turn on/off seat heaters, but also letting you move the passenger seat forward and backward. This could be especially useful if you have a baby seat behind the passenger seat and sometimes need the extra room.
Unfortunately, there are no presets or memory, so you’ll need to adjust the seat each time. It does not allow you to adjust other seat functions, such as the seat back or lumbar support.
For the Model X, it also lets you move the middle seats backward or forward.
Vehicle Maintenance Summary
@tslaway
Owners can now view their vehicle's maintenance history. This builds upon the Maintenance History feature Tesla added recently, which lets you add digital vehicle records when maintenance is performed. It includes a wide variety of items, from adding windshield washer fluid to replacing the vehicle’s battery or motor.
However, with the Holiday Update, Tesla is adding an easy-to-view “consumer” version of vehicle history that lets owners view maintenance records without having to go into Service Mode. The Vehicle Maintenance Summary is under Controls > Service > Maintenance and provides a read-only view for vehicle owners. You’ll have to go into Service Mode to add any maintenance records, which are permanent and can not be erased, even after a factory reset.
@tslaway
When viewing the owner version of Maintenance Summary, owners can quickly view when tires were last rotated, when the cabin filter was replaced and more.
Autopilot Lane Changes
Not a Tesla App
In Europe, Tesla has added a new indicator light that shows which automatic lane changes are available. Whenever Autopilot is enabled, the vehicle will now display a light indicating which lanes are available for Automatic Lane Changes. The icon will start off gray, then turn green and show an arrow to the left, right, or both sides.
If you want to see other Holiday Update features in action, be sure to check out part 1 of this series, where we take a look at all the features of Tesla’s Holiday Update. You can also read the release notes for the Holiday update, version 2024.44.25.2
If you’ve noticed any additional changes in this update, definitely let us know. Thanks to Zer and teslaway for the photos of the new features.
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