NHTSA Closes Second Tesla Safety Review in a Week After Reports Drop in Scope

The U.S. National Highway Traffic Safety Administration has closed a 2022 preliminary evaluation involving about 695,000 Tesla vehicles over a potential unexpected braking or deceleration issue, according to a report published July 2. The vehicles at the center of the review were Tesla Model 3 and Model Y cars built in 2022, the report said, and the regulator concluded its inquiry without moving to further action in the matter it described as an unexpected braking or deceleration investigation.

The update marks a notable shift in the regulator’s handling of the broader set of Tesla issues that have drawn repeated attention in recent years. In this case, the report characterized the closure as coming after incident reports “collapse,” reducing the breadth of complaints tied to the specific 2022 matter that NHTSA had been reviewing.

NHTSA’s “preliminary evaluation” is an early stage in the agency’s safety process. It is used to determine whether evidence from complaints, crashes, or other information is strong enough to justify opening an engineering analysis, a formal investigation, or other enforcement steps. A closure at this stage typically means the agency does not advance that specific review to a larger investigative posture, at least as of the agency’s decision.

The report described the regulator’s action as a closure of what it called a “2022 deceleration” investigation. It specifically cited an estimated 695,000 affected vehicles, which is why the review has been closely watched by the market and by stakeholders tracking NHTSA’s pattern of inquiries into Tesla braking and driver-assistance behavior.

For Tesla, the outcome is one less active U.S. regulatory review tied to vehicle motion behavior. Tesla’s mass-market lineup, including Model 3 and Model Y, is central to the company’s volume in the U.S., so when a safety question arises that could affect safety perceptions or require a remedy, it can quickly become a companywide issue even when the regulator ultimately closes the matter.

The broader backdrop is that NHTSA continues to evaluate how advanced driver-assistance features behave in real-world conditions. Tesla’s systems, like those across the industry, are heavily software-driven, which means safety regulators often look for patterns in reported incidents, including how vehicle behavior aligns with driver expectations and published vehicle capabilities.

The reporting also leaves an important limitation: the available posts do not spell out the detailed reasoning NHTSA used for closure, such as whether specific complaint patterns weakened, whether the agency determined incidents were not tied to a defect, or whether the regulator concluded the issue was inconsistent with a safety-related defect. As a result, while the closure reduces the immediate regulatory heat around the specific 2022 probe described, it does not necessarily indicate that all concerns about braking or deceleration behavior are resolved across other time periods or related systems.

Investors and safety watchers will likely focus on whether NHTSA closes additional Tesla matters in close succession, or whether new investigations replace the ones that are ending. Another point to watch is whether Tesla changes its software or provides additional disclosures related to how its vehicle systems handle deceleration events, especially if NHTSA actions are tied to how often incident reports appear in the agency’s complaint streams.