Tesla Improves Automatic Emergency Braking With Update

Tesla will introduce an enhanced Automatic Emergency Braking in the latest FSD Beta, v11.3

Tesla

Tesla is introducing improvements to its Automatic Emergency Braking (AEB) system that goes beyond the standard AEB functionality. This new system includes the ability to detect and respond to vehicles that are not only in front of the car but ones that cross the car's path.

AEB is an important safety feature that can help reduce the risk of accidents and save road life. The system uses sensors and cameras to monitor the road ahead and identify potential obstacles, including other vehicles, pedestrians, and objects. When the system detects that a collision is about to occur, it will warn the driver with visual and/or audible alerts. If the driver does not respond, it will apply the brakes automatically to slow down or stop the vehicle.

How Tesla is Advancing AEB

Tesla's improvements to Automatic Emergency Braking system go beyond the standard AEB functionality, adding the ability to detect and react to vehicles that cross the car's path or "steals the right of way," such as a vehicle that runs a red light or cuts off the Tesla. According to Tesla, nearly half of the collisions of this nature would be avoided with this newly expanded system. From Tesla's release notes in the upcoming FSD Beta v11.3, Tesla states:

Expanded Automatic Emergency Braking (AEB) to handle vehicles that cross ego's path. This includes cases where other vehicles run their red light or turn across ego's path, stealing the right-of-way. Replay of previous collisions of this type suggests that 49% of the events would be mitigated by the new behavior. This improvement is now active in both manual driving and autopilot operation.

While the latest update has not gone out to the public, we have seen countless examples of Teslas already reacting to vehicles that turn in front of or swerve in front of them.

History of AEB

Automatic Emergency Braking is a safety technology that has been around since the mid-2000s and has become an increasingly common feature in newer vehicles. AEB is also known by other names, such as Collision Mitigation Braking System (CMBS) on Honda vehicles and Active Brake Assist on Mercedes-Benz vehicles. Bosch and Volvo were among the early pioneers in the field.

Bosch introduced its Predictive Safety System in 2006, and Volvo launched its City Safety system in 2008. Since then, many other car manufacturers and technology companies have developed their AEB systems, incorporating a range of sensors, algorithms, and machine learning techniques to improve the accuracy and effectiveness of the technology.

Learnings From FSD Beta

The AEB advancement is listed in the most recent FSD Beta release notes, v11.3. However, the upgraded system will respond in FSD or with all Autopilot features off. This is a significant safety advancement that Tesla will be providing, free of charge, during the next major over-the-air update for FSD Beta users.

Tesla is clearly taking everything it's learning from FSD Beta and its improved vision system and applying it to other areas, much like how it introduced Auto Cancel turn signals. With Auto Cancel Turn Signals, Tesla learned when to turn off your turn signal with its FSD Beta progress, and now you have the option to let the vehicle to turn off your turn signal for you after switching lanes

Improved AEB for All?

FSD Beta currently remains on a separate track from Tesla's other updates, which means not everyone will get the improvements to AEB, at least initially. Given Tesla's history with safety features, we expect that Tesla will eventually add this feature to non-FSD Beta builds or merge FSD and non-FSD builds so that all owners have access to the improved Automatic Emergency Braking.

It's already been shown that Teslas on Autopilot are ten times safer than human drivers and 2.5 times safer with Autopilot disengaged. It's due to features like this that continue to make the safest car on the planet even safer.

Tesla Expected to Fix Cybertruck Charging and Regen Issue in Update 2025.2

BrianASilver3 / Tesla

Cybertruck owners in northern areas - especially those in Canada, have noticed slower charging rates on some vehicles. These owners are experiencing low charging amperage even when using a 48-amp Wall Connectors.

The 4680 cell - the Cybercell, seems to be sensitive to temperature changes and, as such, loses the ability to charge or discharge rapidly. Tesla accommodates this by warming the battery in advance of driving or while driving. However, there seems to be a software issue preventing the battery pack from warming up properly.

In addition, other users have noted that they don’t have regen braking due to the battery not warming up properly, even after driving. If you drive other Tesla vehicles while they’re cold-soaked, they will eventually warm up to offer you full regen and full performance. The Cybertruck, interestingly, will offer you full performance at cold-soaked temperatures as low as -20C (-4F), but will have regen unavailable in temperatures as warm as -5C (41F). 

Software Fix Confirmed

Brian Silver over on X reached out to Tesla Service with his findings, who confirmed that this is a known software issue that has now been validated. Tesla Service responded by saying that they’re hopeful a fix can be built into the 2025.2 software update. This is the first time we’re hearing about Tesla’s next major software update, which is expected to be released around the second or third week of 2025.

Tesla has also confirmed that this is not a physical issue with the heating system, so no repair is required for this one - it’ll be another OTA fix, just like many others.

We’re glad to see this one getting fixed so quickly. The issue appears to have started with the 2024 Holiday Update, or it could just be a coincidence since Cybertrucks begin to settle into Canada this year, where winters are much harsher and colder on average.

Workaround

We’re hoping to see this fix go out soon, as the current procedure to get around this is annoying. It requires you to set the navigation to a nearby Supercharger so that your vehicle will precondition the battery. You can stop the navigation to the Supercharger after 5-10 minutes, at which point the battery pack will be more than warm enough to charge at the full amperage of your home charger.

This workaround also resolves the issue of limited regenerative braking by warming up the battery pack sufficiently.

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Tesla Introduces Multi-Vehicle Coordinated Light Shows [VIDEO]

Not a Tesla App

As part of Tesla’s Holiday Update, Tesla has introduced an awesome new feature - multi-vehicle synchronized Light Shows.

Now, you’re probably going to say: Wait! We’ve seen those kinds of light shows already.

And you’re not wrong - thanks to the hard work of people using the Light Show tool, you could synchronize light shows and run different shows on different vehicles. But this was a lot of manual, time-consuming work. Tesla now officially supports creating a light show involving up to eight vehicles.

Coordinated Shows

These new coordinated shows can be set up in the new xLights interface, making it far easier for Light Show designers to assemble everything. They’ll be able to edit and view multiple vehicles at the same time, synchronize them all together - and build variants with up to eight vehicles.

The output is still eight different Light Shows - which will still need to be put on USB flash drives and distributed to the correct vehicles in the correct order, but designers can now build a unified and coordinated light show. It could be possible to coordinate more than eight vehicles in a single Light Show - and we’re sure we’ll find out in the coming weeks what is possible with the updated xLights software.

Tesla showed off a great example below, putting together a jaw-dropping 8-vehicle Light Show using the new “Ready for Assault” show that arrived with the 2024 Holiday Update. Tesla has also gone ahead and contributed example Light Shows on Github to get Light Show designers familiar with the new process.

Stand in the middle to enter boss fight pic.twitter.com/IHvuzsQgG9

— Cybertruck (@cybertruck) December 23, 2024

Everything New in Light Shows

Tesla’s light show feature received a massive update with this year’s holiday update, but we’re only finding out about some of the features now. Here’s a quick rundown of everything new in Tesla’s Light Show feature:

• Support the Off-road Lightbar for the Cybertruck

• Start, Stop, or Schedule a Light Show from the Tesla app

• Create longer Light Shows

• Two new songs, including Cyber Symphony and Ready for Assault

• Ability to control Ambient Lighting in 2024 Model 3 or Cybertruck

• Display color effects on the vehicle’s center screen

• Create Light Shows that involve up to eight vehicles

Cybertruck Lightbar Support

Another interesting addition is the recent support for the Cybertruck’s off-road lightbar. The off-road lightbar can be addressed in three zones - the forward main bar and left and right ditch beams. With the holiday update, Tesla also added the ability to program the vehicle’s ambient lighting, display color effects, and create longer light shows than ever before.

Tying everything together in this update is the ability to start, schedule, or stop a light show directly from the Tesla app.

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