THE WINTER STORM AND TESLA.

 

GROK:

Yes, there are multiple documented reports from January 2026 and late 2025 detailing Tesla's Full Self-Driving (FSD) system's performance in severe cold, snow, and ice conditions across North America. These include user-shared videos on X (formerly Twitter), YouTube tests, forum discussions, and news articles. Experiences are mixed, with some highlighting confident handling and corrections, while others note failures like sliding, disengagements, or overly cautious behavior. Below is a summary of key reports, focusing on recent winter events.
Positive or Successful Reports

• A coast-to-coast drive from New York to California in mid-January 2026 covered 3,081 miles entirely on FSD, navigating extreme cold, snow, ice, slush, and rain without interventions. The driver reported 100% hands-free operation over 58 hours.
• In Dallas, Texas, during a January 2026 winter storm, FSD v14.2.2.3 handled solid ice, demonstrating emergency avoidance, braking, slide correction, and lane perception even when road markings were invisible and cameras were partially frozen. Users noted quick auto-corrections during slides.
• A test in unplowed snow (up to 30 cm deep) showed FSD v14 operating with high confidence, maintaining speed and control better than previous versions.
• On a steep descent (-5% to -10% grade) in snowy conditions, FSD v14.2.2.3 drove below the speed limit, signaling awareness of slick roads and inspiring confidence.
• During a Pacific Northwest snowstorm, FSD v12.6.4 managed sliding by counter-steering, performing better than expected despite recommendations against using it in such weather.
• A December 2025 report (relevant to ongoing winter patterns) described FSD navigating heavy snow-covered roads with ease and confidence.
• An extreme test against a salt truck in winter conditions showed FSD handling snow-covered roads effectively, though camera coverage was noted as a potential issue.

Negative or Challenging Reports

• On January 9, 2026, a forum user reported FSD failing in moderate snow and slush, following too closely at night, misreading speed limits (driving 45 mph when traffic was at 20 mph), and exhibiting "sloth-like" behavior.
• FSD v14.2.2 slid onto the wrong side of the road in snow, disengaging and requiring human intervention after entering the oncoming lane. This was criticized as evidence against claims of all-weather operation.
• A Reddit discussion on FSD v14.2.2.3 noted excessive wheel spin and slipping on short runs in snow, though it was a limited test.
• Facebook users inquired about FSD v14.2.1 in snow post-storm, with some hesitation to use it on 2026 Model Y vehicles due to untested performance.

These reports primarily come from real-world user tests and videos shared on platforms like YouTube and X, often during the ongoing North American cold snap.
Tesla's FSD is still in beta, and official guidance advises caution in adverse weather, as visibility (e.g., camera obstruction) and traction can impact performance. For the latest, monitoring Tesla's updates or community forums is recommended, as software versions like v14.2 continue to evolve.

Based on recent statements from Elon Musk in December 2025, Tesla is in the validation phase for unsupervised Full Self-Driving (FSD), with a larger model incorporating chain-of-thought reasoning and reinforcement learning expected to deploy in late January or February 2026.
This update aims to make the system several times better than a human driver, potentially up to 10x better on AI4 hardware. Earlier projections from Musk in August 2025 suggested a 3-6 month timeline for unsupervised FSD, aligning with a November 2025 to February 2026 rollout, depending on regulatory approvals in specific cities and states.
An April 2025 statement targeted unsupervised availability for customer testing in the US before the end of 2025, emphasizing safety to allow users to "fall asleep and wake up at their destination."
Regarding severe cold, snow, and ice specifically, current supervised FSD versions (e.g., v14.2.x) have demonstrated strong performance in blizzards, whiteouts with near-zero visibility (under 20 feet), unplowed snow up to 30 cm deep, solid ice, and temperatures as low as -50°C (-58°F), often with zero interventions in real-world tests like a coast-to-coast Cannonball Run through winter storms.
Features like automatic camera snow-melting on HW4 hardware further support readiness in adverse weather. User reports highlight substantial year-over-year progress, with FSD on HW4 performing "fantastically" this winter, suggesting unsupervised operation in these conditions could follow closely after the planned updates—likely by mid-2026, though regulations remain the main hurdle.
However, some skepticism persists, with discussions noting potential limitations on HW4 due to camera obstruction in snow or dirt, which could delay full unsupervised reliability.
Tesla's shift to ending one-time FSD purchases after February 14, 2026, in favor of subscriptions also implies confidence in the system's maturation. Keep in mind that Musk's timelines have historically been optimistic, and actual deployment will depend on further testing, regulatory clearances, and real-world data collection.

Yes, you're right—there are millions of older Tesla vehicles on the road that would potentially need hardware upgrades (including better cameras, computing power, or related components like wiring harnesses) to fully support unsupervised Full Self-Driving (FSD), especially in challenging conditions like severe cold, snow, and ice where clear camera visibility is critical.
Tesla's vision-only approach relies heavily on high-quality, unobstructed camera feeds processed by advanced neural networks. Newer vehicles (starting around 2023 with Hardware 4/AI4) feature higher-resolution cameras (e.g., 5MP vs. older 1.2-1.5MP on HW3), improved placement (like windshield-mounted fronts instead of bumper), red-tinted lenses for better performance, and in some cases (like Cybercab and refreshed models), automatic camera sprayers/washers to handle snow, ice buildup, dirt, or salt. Older cars lack these, and reports indicate that even HW4 vehicles may require additions like sprayers for true unsupervised reliability in adverse weather.Current Status on Retrofits (as of late January 2026)
Tesla has repeatedly acknowledged the issue, particularly for HW3 vehicles (roughly 2019–early 2023 production, depending on model):

• Elon Musk confirmed in earnings calls and statements that HW3 computers will need replacement (likely a custom variant of HW4 or upcoming AI5) if they can't run unsupervised FSD reliably. This applies only to owners who purchased FSD outright (not subscribers), and it's described as "painful and difficult" due to scale—potentially hundreds of thousands to over a million vehicles.
• No mass retrofit program has launched yet. Tesla is prioritizing solving unsupervised FSD first (targeted for HW4/AI4 vehicles in early-mid 2026), then determining exact requirements. Some speculation points to a "lite" or distilled version for HW3 in mid-2026, or patents enabling software workarounds to avoid full hardware swaps.
• Cameras are a sticking point: Musk has said existing HW3 cameras are "capable" and won't be replaced in retrofits, but evidence (e.g., full-resolution processing in FSD v13+) shows advantages from HW4's higher-res sensors. Limited retrofits exist, like front camera swaps on some Model 3s for better parking/FSD v14 compatibility, but nothing broad for full unsupervised.

For even newer HW4 vehicles, there's discussion of future needs (e.g., camera washers or bumper cams) for unsupervised in harsh weather, but no confirmed retrofits yet—new production models are getting these natively.
Timeline and Likelihood

• Short-term (2026): Unsupervised FSD likely rolls out first on current HW4/AI4 cars (potentially Q1-Q2 2026 per Musk updates), with retrofits for HW3 FSD buyers following if needed—possibly starting late 2026 or later, once requirements are finalized.
• Challenges: Logistical (service center capacity, custom parts), cost (hundreds of millions+), and legal pressures (past court rulings on promises) could accelerate it, but Tesla has historically delayed or offered alternatives like FSD transfers to new vehicles.
• Older cars overall: Pre-HW3 (HW2/2.5) already got free computer retrofits years ago for FSD buyers, but cameras weren't always upgraded. Many owners feel left behind as software advances favor newer hardware.

In snowy/icy North American winters, clear cameras are essential—obscured ones force disengagements or supervision prompts. Tesla's stance is that software + AI can handle a lot, but real-world unsupervised deployment (especially robotaxi/Cybercab) shows hardware tweaks help.
If you're on an older Tesla with FSD purchased, monitor Tesla app/service notifications or official announcements—retrofits, if they happen, will likely be free for eligible owners but not guaranteed soon.
For the absolute latest, checking Tesla's support pages or recent Elon Musk/X posts is best, as timelines shift.