Software update 2026.20.6.6 is officially making its way to Tesla vehicles, bringing the latest branch of Full Self-Driving (Supervised) capabilities to eager drivers. The rollout is a welcome move for those on the FSD track, merging the newest self-driving code with a feature drop the broader vehicle fleet received last month.
Firmware version 2026.20.6.6 started rolling out over the weekend and ships with FSD v14.3.5. The new FSD built directly succeeds version 14.3.4 from last month, introducing much-needed bug fixes and some excellent quality-of-life upgrades.
What's New in FSD v14.3.5
This update acts as a bridge, bringing features from the main 2026.20 vehicle firmware branch over to FSD users. Here are some of the key additions:
Blind Spot Warnings
Tesla has expanded blind spot warnings while parked to the new Model Y, 2021+ Model S, and 2021+ Model X, alerting occupants to approaching cyclists or vehicles in their blind spot before they open their doors. The feature was previously only available on the new “Highland” Model 3 and Cybertruck.
Dashcam Clip Encryption
To protect your privacy, Tesla added dashcam clip encryption in update 2026.20, securing all recorded footage and Sentry Mode files on your USB drive. The feature is enabled by default but can be turned off using the Encrypt Dashcam Recordings toggle in Controls > Safety.
Grok in More Countries
The update brings Grok to more countries, expanding the SpaceXAI-made AI assistant to customers in Chile, Malaysia, the Philippines, Thailand, Singapore, Japan, and Hong Kong. However, this change isn’t as relevant to FSD users since the software isn’t available in these countries (yet).
New Parental Controls
Parents get more oversight as Tesla added some new parental controls in update 2026.20, allowing owners to lock down the in-car Web Browser, Tesla Theater, and Tesla Arcade. There are new toggles for Browser, Theater, and Arcade when you navigate to Controls > Safety > Parental Controls while the vehicle is in Park.
FSD Visualizations in the Tesla App
You can now monitor your vehicle’s self-driving status remotely, with the Tesla app getting a new “Self-Driving” indicator and signature blue FSD navigation path for the live driving visualization. The driving animation inside the app also supports the Rainbow Road easter egg.
Multi-Camera View While Driving
The multi-camera grid is now completely unlocked. Originally introduced as a diagnostic utility, the multi-camera grid view could previously only be accessed while the vehicle was in Park. Last month, we talked about how it had become possible to bring up the grid view while in Park and have it stay on the screen as you shifted into Drive. Now, you can view all camera feeds simultaneously at any time, even while driving down the highway.
You can tap on any of the cameras in the grid to view them full-screen, and tap on the grid button to go back to a multi-camera view.
First Impressions: A Fixed Turning Twitch
To see how the actual driving code has improved, Tesla enthusiast Zack (@BLKMDL3) thoroughly tested the FSD v14.3.5 over the past couple of days and shared his detailed first impressions. One of the biggest wins in FSD v14.3.5 is the elimination of a steering wobble that plagued the previous build.
“In my reviews of v14.3.4 I had previously mentioned a twitch the car would do when entering turn lanes, especially with a wider gap between/separating the straight lanes and turn lane. There’s one turn lane that it would wobble the wheel every single time with v14.3.4 and it appears to have been fixed with v14.3.5! Did 3 laps there with zero issues, so I can confirm that one is fixed for me at least,” Zack said in his X post.
Smoother Parking and Better Spot Selection
Parking performance also seems to have received a notable polish, something Tesla has been noticeably working on in recent FSD builds. Automatic parking maneuvers felt much more natural and precise during Zack’s initial testing.
In his review, he noted, “I did 4 parking jobs on my drives and each one was pretty good. All of them were quick with a good initial approach angle and steering input. 3/4 of them were perfectly centered, one I’d give a 7/10 but could be because the car next to me wasn’t parked great.” Zack also observed that the system's spot selections were more convenient, usually targeting the first or second available opening closest to the destination.
Reduced Driver Nag and Assertive Driving Modes
The update tweaks how aggressively the cabin camera monitors driver attentiveness. Tesla’s driver monitoring system now seems slightly less strict on city streets, but it demands quick action when it does alert you. According to Zack, the nag “has been slightly reduced so far that I’ve noticed on city streets. When it does eventually flash blue you don’t have as much time to touch the wheel, look forward etc.”
On the road, FSD v14.3.5 handles complex traffic situations with improved confidence, even in Tesla’s bolder driving modes. Zack found both Hurry mode and Mad Max mode to be “very assertive,” as they’re supposed to be, with excellent lane selection. Despite being in a more assertive drive mode, the tester found FSD v14.3.5 to still be extremely cautious while creeping on unprotected turns, waiting to ensure the entire road was clear before engaging like FSD v14 Lite.
Ultimately, FSD v14.3.5 looks to be a solid step forward, polishing some of the rough edges in the previous build while delivering a sizeable payload of general vehicle features and improvements.
