<div id="readability-page-1">Tesla (NASDAQ:TSLA) shares slipped about 3% on Thursday as investors reacted to a regulatory escalation that could carry far-reaching implications for the company's self-driving ambitions.<h3>Claim 70% Off TipRanks Premium</h3><ul><li>Unlock hedge fund-level data and powerful investing tools for smarter, sharper decisions </li><li> Stay ahead of the market with the latest news and analysis and maximize your portfolio's potential</li></ul> Earlier in the day, the National Highway Traffic Safety Administration upgraded its probe into Tesla's Full Self-Driving system from a Preliminary Evaluation to a more advanced Engineering Analysis, now covering more than 2.4 million vehicles. That shift is critical because it marks a transition from early-stage information gathering into a formal process where regulators actively test vehicles, analyze crash data in depth, and scrutinize engineering decisions behind the system. The probe is focused on whether Tesla's camera-based approach can properly detect and respond to reduced visibility conditions, such as fog, glare, or dust, where perception becomes more difficult. Rather than a narrow software issue, the question now centers on whether the underlying design can reliably recognize when it should not be operating at full capability. GLJ Research analyst Gordon Johnson argues that this escalation carries far more weight than many investors may assume, describing it as a &#34;Big Deal.&#34; The analyst explains that while a Preliminary Evaluation is essentially regulators &#34;sniffing around,&#34; an Engineering Analysis represents confirmation that a pattern exists and triggers the agency's full investigative toolkit, including vehicle testing and deeper engineering interrogation. According to Johnson, this stage sits just one step before a mandatory recall, making it a pivotal moment rather than a procedural formality.New trading tool for TSLA bulls/bears The analyst also stresses that the issue at hand is not easily resolved, noting that the investigation targets a potential limitation of Tesla's vision-only system in degraded visibility environments. In Johnson's view, that raises a systems-level concern rather than a simple bug that could be addressed through an over-the-air update, which has been Tesla's typical approach in past recalls. If regulators conclude that the architecture itself is insufficient, the implications could extend beyond a quick fix and require more fundamental changes. More broadly, Johnson ties the development directly to Tesla's valuation, arguing that a significant portion of the company's worth is linked to expectations around a global robotaxi network powered by its self-driving software. The analyst contends that the Engineering Analysis challenges that assumption at its core, stating that scaling such a network becomes difficult if the software faces the risk of being restricted or recalled. Johnson is a well-known TSLA bear, but what does the rest of the Street think of the stock? TSLA carries a Hold (i.e., Neutral) consensus rating based on 31 analyst opinions, including 13 Buys, 11 Holds, and 7 Sells. At the same time, the average 12-month price target of $399.25 implies ~5% upside from current levels. (See TSLA stock forecast) </div>

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Tesla (NASDAQ:TSLA) shares fell about 3% due to a regulatory escalation regarding its Full Self-Driving system, now under an Engineering Analysis by the National Highway Traffic Safety Administration. This shift indicates a deeper investigation into the system's ability to handle reduced visibility conditions. Analyst Gordon Johnson describes this as a 'Big Deal,' suggesting it could lead to significant implications for Tesla's valuation and self-driving ambitions. The stock currently holds a Hold consensus rating among analysts, with a 12-month price target suggesting a 5% upside.

- Tesla (NASDAQ:TSLA) shares fell about 3% due to the National Highway Traffic Safety Administration escalating its probe into the Full Self-Driving system, now involving over 2.4 million vehicles.  
- The shift to an Engineering Analysis indicates a formal investigative process that could lead to a mandatory recall if the design is found inadequate in recognizing reduced visibility conditions.  
- Analyst Gordon Johnson highlights that the investigation poses a significant threat to Tesla's valuation, as expectations surrounding its self-driving technology and potential robotaxi network may be challenged.

Why Tesla Stock (TSLA) Is Down Today and Why This Analyst Calls It a 'Big Deal'