{"id":879,"date":"2025-10-28T10:46:44","date_gmt":"2025-10-28T10:46:44","guid":{"rendered":"https:\/\/ecodriveautosales.com\/us\/?p=879"},"modified":"2025-10-28T19:05:35","modified_gmt":"2025-10-28T19:05:35","slug":"evaluating-limits-and-challenges-of-self-driving-tesla-fsd","status":"publish","type":"post","link":"https:\/\/ecodriveautosales.com\/us\/evaluating-limits-and-challenges-of-self-driving-tesla-fsd\/","title":{"rendered":"Evaluating the Limits and Challenges of Self-Driving: Crossing California with Tesla FSD"},"content":{"rendered":"<style>\n        .highlight {\n            background-color: #f8f9fa;\n            border-left: 4px solid #3498db;\n            padding: 15px;\n            margin: 20px 0;\n        }\n        .related-videos {\n            background-color: #f3f4f6;\n            padding: 15px;\n            border-radius: 5px;\n            margin-top: 30px;\n        }\n        .related-videos h3 {\n            margin-top: 0;\n        }\n        .related-videos ul {\n            padding-left: 20px;\n        }\n        .footer-note {\n            font-style: italic;\n            color: #7f8c8d;\n            border-top: 1px solid #eee;\n            padding-top: 20px;\n            margin-top: 30px;\n        }\n        .image-grid {\n            display: grid;\n            grid-template-columns: repeat(2, 1fr);\n            gap: 15px;\n            margin: 20px 0;\n        }\n        .image-grid img {\n            width: 100%;\n            margin: 0;\n        }\n        .caption {\n            font-style: italic;\n            color: #666;\n            text-align: center;\n            margin-top: 5px;\n            font-size: 0.9em;\n        }\n        .tech-spec {\n            background-color: #f8f9fa;\n            border: 1px solid #dee2e6;\n            padding: 15px;\n            margin: 20px 0;\n            border-radius: 5px;\n        }\n        .warning {\n            background-color: #fff3cd;\n            border: 1px solid #ffeaa7;\n            padding: 15px;\n            margin: 20px 0;\n            border-radius: 5px;\n        }\n        .danger {\n            background-color: #f8d7da;\n            border: 1px solid #f5c6cb;\n            padding: 15px;\n            margin: 20px 0;\n            border-radius: 5px;\n        }\n        .route-info {\n            background-color: #e8f5e8;\n            border: 1px solid #c3e6c3;\n            padding: 15px;\n            margin: 20px 0;\n            border-radius: 5px;\n        }\n        .incident-analysis {\n            background-color: #fff5f5;\n            border: 2px solid #fed7d7;\n            padding: 20px;\n            margin: 20px 0;\n            border-radius: 8px;\n        }\n        .incident-step {\n            background-color: #f7fafc;\n            border-left: 3px solid #e53e3e;\n            padding: 10px 15px;\n            margin: 10px 0;\n        }\n        .comparison-section {\n            background-color: #f9f9f9;\n            border: 1px solid #e0e0e0;\n            padding: 20px;\n            margin: 20px 0;\n            border-radius: 8px;\n        }\n        .pros {\n            background-color: #f0fff4;\n            border: 1px solid #9ae6b4;\n            padding: 15px;\n            border-radius: 5px;\n            margin: 20px 0;\n        }\n        .cons {\n            background-color: #fffaf0;\n            border: 1px solid #fbd38d;\n            padding: 15px;\n            border-radius: 5px;\n            margin: 20px 0;\n        }\n        .pros h4, .cons h4 {\n            margin-top: 0;\n            margin-bottom: 10px;\n        }\n        .pros ul, .cons ul {\n            margin: 0;\n            padding-left: 20px;\n        }\n        .pros li, .cons li {\n            margin-bottom: 8px;\n        }\n<\/style>\n<h1>Crossing California with Tesla FSD: San Francisco \u2192 Yosemite  Part 4 <\/h1>\n<h2>Introduction<\/h2>\n<p>In Part 4 of our trip from San Francisco to Yosemite National Park, we confront the real-world performance and limitations of FSD. <\/p>\n<p>After leaving the Turlock Supercharger, we drove to roughly the 130-mile mark and observed several noteworthy FSD behaviors. <\/p>\n<p>This report offers an objective look at FSD&#8217;s boundaries and potential, not just under ideal conditions but in everyday road situations.<\/p>\n<p><strong>*This article condenses the key points from the video below into text form.*<\/strong><\/p>\n<p><strong>If something sparks your curiosity, be sure to watch the full video!<\/strong><\/p>\n<div style=\"position: relative; width: 100%; max-width: 800px; margin: 20px auto;\">\n<div style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\">\n<p>        <iframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" \n\n                src=\"https:\/\/www.youtube.com\/embed\/ZnOj5Djw89c?autoplay=1&#038;mute=1\" \n\n                title=\"\u30c6\u30b9\u30e9FSD\u306e\u4e9b\u7d30\u306a\u30c8\u30e9\u30d6\u30eb\u7de8\uff5c\u81ea\u52d5\u904b\u8ee2\u3067\u9577\u8ddd\u96e2\u65c5\u884c\uff01\u3010\u30b5\u30f3\u30d5\u30e9\u30f3\u30b7\u30b9\u30b3\u304b\u3089\u30e8\u30bb\u30df\u30c6\u3078\u3011\" \n\n                frameborder=\"0\" \n\n                allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" \n\n                referrerpolicy=\"strict-origin-when-cross-origin\" \n\n                allowfullscreen><\/iframe><\/p><\/div>\n<\/div>\n<div class=\"route-info\">\n<h4>\ud83d\udee3\ufe0f Route Overview \u2013 Part 4<\/h4>\n<ul>\n<li><strong>Starting point:<\/strong> Turlock Supercharger<\/li>\n<li><strong>Distance covered:<\/strong> 101 miles \u2192 130 miles (total)<\/li>\n<li><strong>Distance remaining:<\/strong> about 70 miles (to Yosemite)<\/li>\n<li><strong>FSD version:<\/strong> 12.5 or later<\/li>\n<li><strong>Note:<\/strong> Observed and analyzed several FSD behavior issues<\/li>\n<\/ul>\n<\/div>\n<h2>Tesla Supercharger: Autopark Feature<\/h2>\n<p>This leg of the journey let us try Tesla&#8217;s &#8220;Autopark.&#8221; <\/p>\n<p>The car backs into a spot entirely on its own, while the screen shows every move in real time\u2014so you can let it handle the job with complete confidence.<\/p>\n<div class=\"tech-spec\">\n<h4>\ud83d\udd0b Typical Supercharger Times<\/h4>\n<ul>\n<li><strong>0\u219280 %:<\/strong> about 20\u201330 minutes<\/li>\n<li><strong>Full charge (100 %):<\/strong> roughly 40\u201350 minutes<\/li>\n<li><strong>Recommended level:<\/strong> usually stop at 80 % to protect battery health<\/li>\n<li><strong>Long trips:<\/strong> top up to 100 % when needed<\/li>\n<\/ul>\n<\/div>\n<h2>Detailed Analysis of FSD Behavior: Investigating Multiple Incidents<\/h2>\n<p>During this leg we observed several noteworthy actions by FSD v12.5 and later. <\/p>\n<p>While not necessarily &#8220;problems,&#8221; they offer valuable insight into the current limits of autonomous driving and where improvements are still needed.<\/p>\n<h3>Incident 1: Unstable Maneuvering Near a Large Truck<\/h3>\n<div class=\"incident-analysis\">\n<h4>\ud83d\ude9b Situation Analysis: Unexpected Lane Change While Passing a Truck<\/h4>\n<div class=\"incident-step\">\n        <strong>Step 1:<\/strong> Attempting to pass a large truck traveling in the right lane\n    <\/div>\n<div class=\"incident-step\">\n        <strong>Step 2:<\/strong> Detects a vehicle closing in from the rear left, highlighted in blue\n    <\/div>\n<div class=\"incident-step\">\n        <strong>Step 3:<\/strong> For unknown reasons, initiates a lane change toward the right lane (next to the truck)\n    <\/div>\n<div class=\"incident-step\">\n        <strong>Step 4:<\/strong> Truck accelerates, a warning pops up, and FSD disengages\n    <\/div>\n<h5>Discussion<\/h5>\n<p>The real head-scratcher is why FSD tried to merge into the truck&#8217;s lane at all. <\/p>\n<p>The next exit was still far away, so there was little practical need to move right. Possible causes include:<\/p>\n<ul>\n<li>The system deemed the approaching rear-left vehicle a higher risk<\/li>\n<li>A momentary FSD malfunction<\/li>\n<li>An unexpected speed change by the truck that confused the model<\/li>\n<\/ul>\n<\/div>\n<h3>Incident 2: Decision-Making During a Lane Merge<\/h3>\n<div class=\"incident-analysis\">\n<h4>\ud83d\udee3\ufe0f Situation Analysis: Complex Judgment in a Right-Lane Merge<\/h4>\n<div class=\"incident-step\">\n        <strong>Step 1:<\/strong> Detects that the right lane is ending and highlights the truck in blue\n    <\/div>\n<div class=\"incident-step\">\n        <strong>Step 2:<\/strong> Attempts to move into the left lane\n    <\/div>\n<div class=\"incident-step\">\n        <strong>Step 3:<\/strong> Issues a warning as a vehicle approaches from the rear left\n    <\/div>\n<div class=\"incident-step\">\n        <strong>Step 4:<\/strong> Disengages FSD because the gap to the truck is too small for safety\n    <\/div>\n<h5>Room for Improvement<\/h5>\n<p>Because FSD had already recognized the upcoming merge, an ideal response would have included:<\/p>\n<ul>\n<li>Shifting to the far-left lane well in advance<\/li>\n<li>Slowing to match the merging truck&#8217;s speed<\/li>\n<li>Committing to the lane change earlier in the process<\/li>\n<\/ul>\n<\/div>\n<h3>Incident 3: Temporary Navigation Confusion<\/h3>\n<div class=\"incident-analysis\">\n<h4>\ud83d\uddfa\ufe0f Situation Analysis: Wrong Turn Toward an Unplanned Exit<\/h4>\n<p>Despite the route being set to continue straight on the freeway, FSD briefly attempted to head for a different exit. <\/p>\n<p>The maneuver looked like the kind of &#8220;whoops&#8221; a human driver might make\u2014showing that the system can still slip in a very human way.<\/p>\n<div class=\"warning\">\n<p><strong>\u26a0\ufe0f Key Takeaway:<\/strong> If you take the wrong exit, getting back onto the freeway can cost significant time. <\/p>\n<p>In moments like this, quickly disengaging FSD and taking manual control is crucial.<\/p>\n<\/p><\/div>\n<\/div>\n<h2>FSD vs. LiDAR: Comparing Technical Approaches<\/h2>\n<div class=\"comparison-section\">\n<h3>Fundamental Differences in Sensor Technology<\/h3>\n<p>This journey underscored the contrast between Tesla&#8217;s camera-based strategy and Waymo&#8217;s LiDAR-centric methodology.<\/p>\n<h4>LiDAR (Waymo) Highlights<\/h4>\n<ul>\n<li><strong>How it works:<\/strong> Emits laser pulses and measures the return time to map distance and shape<\/li>\n<li><strong>Accuracy:<\/strong> Millimeter-level distance readings<\/li>\n<li><strong>Environmental resilience:<\/strong> Performs well in darkness, fog, or other low-visibility conditions<\/li>\n<li><strong>Cost:<\/strong> Expensive sensors drive up vehicle price<\/li>\n<\/ul>\n<h4>Camera + AI (Tesla) Highlights<\/h4>\n<ul>\n<li><strong>Philosophy:<\/strong> Mimics how humans drive\u2014eyes plus brain<\/li>\n<li><strong>Cost:<\/strong> Relatively inexpensive and scalable for mass production<\/li>\n<li><strong>Limitations:<\/strong> Performance can suffer in glare, fog, or heavy dust<\/li>\n<li><strong>Learning curve:<\/strong> Continuously improves through vast data collection<\/li>\n<\/ul>\n<\/div>\n<h3>NHTSA Investigation &#038; Safety Challenges<\/h3>\n<div class=\"danger\">\n<p><strong>\ud83d\udea8 Critical Safety Note:<\/strong> In 2024 the U.S. National Highway Traffic Safety Administration (NHTSA) opened an investigation covering roughly 2.4 million Teslas. <\/p>\n<p>Several FSD-related crashes occurred in poor-visibility conditions\u2014bright sun glare, fog, or dust\u2014including one fatal incident.<\/p>\n<\/div>\n<p>The probe aims to assess whether FSD properly detects and handles low-visibility situations. <\/p>\n<p>Like human drivers, a camera-only system faces inherent limits under bad weather or obscured vision, and this investigation highlights those constraints.<\/p>\n<h2>Silicon Valley Sightseeing Spots<\/h2>\n<h3>Fremont: A Giant Park in the City of Tesla&#8217;s Factory<\/h3>\n<blockquote class=\"instagram-media\" data-instgrm-permalink=\"https:\/\/www.instagram.com\/reel\/DOzMClWgUMd\/\" data-instgrm-version=\"14\" style=\"max-width:540px; width:100%; margin:1px auto;\"><\/blockquote>\n<p><script async src=\"\/\/www.instagram.com\/embed.js\"><\/script><\/p>\n<p>Between driving segments, we stopped at a massive park in Fremont, home to Tesla&#8217;s main factory. <\/p>\n<p>Spanning roughly 396 hectares\u2014about the size of 84 Tokyo Domes\u2014this green space lets you spot California&#8217;s ubiquitous squirrels as well as wild turkeys and deer.<\/p>\n<blockquote class=\"instagram-media\" data-instgrm-permalink=\"https:\/\/www.instagram.com\/p\/DM_UQs1zxm8\/\" data-instgrm-version=\"14\" style=\"max-width:540px; width:100%; margin:1px auto;\"><\/blockquote>\n<p><script async src=\"\/\/www.instagram.com\/embed.js\"><\/script><\/p>\n<h3>Winchester Mystery House: San Jose&#8217;s Enigmatic Mansion<\/h3>\n<blockquote class=\"instagram-media\" data-instgrm-permalink=\"https:\/\/www.instagram.com\/p\/DL3OAU7zCva\/\" data-instgrm-version=\"14\" style=\"max-width:540px; width:100%; margin:1px auto;\"><\/blockquote>\n<p><script async src=\"\/\/www.instagram.com\/embed.js\"><\/script>  <\/p>\n<p>The Winchester Mystery House is one of Silicon Valley&#8217;s most popular attractions. <\/p>\n<p>After 38 years of nonstop renovations ordered by Sarah Winchester, the widow of the rifle magnate, the house now boasts 160+ rooms and a maze-like layout\u2014offering a delightfully spooky, labyrinthine tour.<\/p>\n<h3>NASA Ames Research Center<\/h3>\n<p>Visible from the freeway, NASA&#8217;s Ames Research Center hosts a variety of aerospace projects. <\/p>\n<p>Although public access is limited, you can browse the gift shop for space-themed souvenirs.<\/p>\n<h2>Practical Safety Tips When Using FSD<\/h2>\n<div class=\"pros\">\n<h4>\u2705 Advantages of FSD<\/h4>\n<ul>\n<li>Reduces fatigue on long drives<\/li>\n<li>Improves safety by covering blind spots<\/li>\n<li>Delivers steadier, more consistent driving decisions<\/li>\n<li>Provides 360-degree monitoring via multiple cameras<\/li>\n<\/ul>\n<\/div>\n<div class=\"cons\">\n<h4>\u26a0\ufe0f Situations to Watch Out For<\/h4>\n<ul>\n<li>Driving near large trucks<\/li>\n<li>Complex lane-merge zones<\/li>\n<li>Poor visibility (fog, intense sun glare)<\/li>\n<li>Scenarios requiring multiple rapid decisions<\/li>\n<\/ul>\n<\/div>\n<div class=\"highlight\">\n<p><strong>\ud83d\udee1\ufe0f Practical Safety Advice:<\/strong><\/p>\n<ol>\n<li><strong>Be ready to take over instantly:<\/strong> Always stay prepared to switch to manual if FSD misbehaves.<\/li>\n<li><strong>Leverage exterior cameras:<\/strong> Use your phone to view external camera feeds and confirm what FSD is &#8220;seeing.&#8221;<\/li>\n<li><strong>Exercise judgment:<\/strong> If your goal is a comfortable ride, disengage FSD without hesitation whenever you feel uneasy.<\/li>\n<li><strong>Keep observing:<\/strong> Pay extra attention around big rigs and when FSD makes navigation decisions.<\/li>\n<\/ol>\n<\/div>\n<h2>Where Tesla FSD Is Now\u2014and Where It&#8217;s Headed<\/h2>\n<p>The 130 miles we covered offer a clear snapshot of autonomous driving&#8217;s present state. <\/p>\n<p>Even on version 12.5, FSD is not perfect; certain conditions still call for human judgment.<\/p>\n<p>That said, these challenges are not hard limits\u2014they&#8217;re opportunities for continual refinement. <\/p>\n<p>Because FSD evolves via over-the-air updates, many of the issues we observed may already be patched in newer releases.<\/p>\n<div class=\"warning\">\n<p><strong>\u26a0\ufe0f Reality check:<\/strong> FSD is a driver-assistance feature, not full autonomy. <\/p>\n<p>The driver must always watch the road and be ready to take over instantly.<\/p>\n<\/div>\n<h2>Recap: Balancing Technology and Reality<\/h2>\n<p>Part 4 of our journey from San Francisco to Yosemite showcased both the exciting promise and the realistic limits of Tesla FSD. <\/p>\n<p>The challenges we met over the first 130 miles prove that autonomous driving is still a work in progress, yet they also highlight how quickly the tech is advancing.<\/p>\n<p>What stood out most were FSD&#8217;s &#8220;human-like&#8221; errors. <\/p>\n<p>Rather than making perfectly mechanical choices, the system occasionally slipped in ways a person might\u2014evidence that its decision-making is edging closer to human thought patterns.<\/p>\n<p>Next up is the final 70 miles and our approach to Yosemite National Park. <\/p>\n<p>We&#8217;re eager to see how FSD performs in a more natural setting and what a self-driving experience inside a national park will feel like.<\/p>\n<div class=\"highlight\">\n<p>\ud83d\ude97 Try FSD Yourself: <strong>EcoDrive offers <a href=\"https:\/\/ecodriveautosales.com\/us\/tesla-rental\/\">rental cars equipped with Tesla&#8217;s Full Self-Driving<\/a> (FSD)<\/strong>, so when you&#8217;re in California, be sure to give it a try!<\/p>\n<\/div>\n<p class=\"footer-note\">This article reflects experiences from 2024. Tesla FSD receives continuous updates, so many of the issues noted here may already be improved in current versions. Always prioritize safety and stay alert when using FSD. For the latest on the NHTSA investigation, consult official announcements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Crossing California with Tesla FSD: San Francisco \u2192 Yosemite Part 4 Introduction In Part 4 of our trip from San Francisco to Yosemite National Park, we confront the real-world performance and limitations of FSD. After leaving the Turlock Supercharger, we drove to roughly the 130-mile mark and observed several noteworthy FSD behaviors. This report offers [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":3192,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-879","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-american-life-immigration"],"_links":{"self":[{"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/posts\/879","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/comments?post=879"}],"version-history":[{"count":16,"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/posts\/879\/revisions"}],"predecessor-version":[{"id":3206,"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/posts\/879\/revisions\/3206"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/media\/3192"}],"wp:attachment":[{"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/media?parent=879"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/categories?post=879"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecodriveautosales.com\/us\/wp-json\/wp\/v2\/tags?post=879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}