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What Horizon HSD V2.1 Adds—and What Its New Reversing Feature Means
Horizon HSD V2.1 adds beta assisted reversing for situations such as blocked routes and narrow road encounters; the company reports a 43% increase in average distance without intervention versus V2.0. The key distinction from V2.0 is broader, context based reversing—not simply retracing a route or backing into a par...
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Key takeaways
- Horizon HSD V2.1 adds beta assisted reversing for situations such as blocked routes and narrow road encounters; the company reports a 43% increase in average distance without intervention versus V2.0.
- The key distinction from V2.0 is broader, context based reversing—not simply retracing a route or backing into a parking space.
- V2.1 also adds parking and safety refinements, including reverse to parking handoff, custom space and remote parking features, and updated hazard responses.
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openai.comCreate a landscape editorial hero image for this Studio Global article: What does Horizon Robotics’ HSD V2.1 assisted-driving update add, particularly its claimed first mass-production end-to-end reversing capabi. Article summary: Horizon Robotics’ HSD V2.1 adds assisted reversing beyond a parking manoeuvre: it can decide to back up when moving forward is blocked, then continue its route. Horizon calls it China’s first mass-produced *end-to-end, a. Topic tags: general, general web. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fake numbers, clic
Horizon Robotics’ HSD V2.1 expands assisted driving in a direction many systems handle only in limited ways: reversing when forward progress is blocked. The company describes the feature as a beta and claims it is China’s first mass-produced end-to-end reversing system for “all scenarios.” That label describes the intended range of use, not a guarantee that the system can reverse in every situation. 9
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The update also brings changes to driving and parking. Horizon-reported figures show a 43% increase in average distance without driver intervention, a 255% improvement in its interactive lane-change measure and a 20% improvement in narrow-space parking success, each compared with V2.0. These are reported performance claims, not independently verified results. 32
What “all-scenario reversing” adds
Horizon describes V2.1 as able to choose reverse when it encounters situations such as a narrow-road meeting, a blocked path or a difficult start that requires room to get unstuck. It can back up to make space and then continue along its route. 12
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The distinction from V2.0 matters: reports on that version describe route-tracing reverse, which retraces a previously driven path. V2.1’s new feature is presented as a broader ability to decide to reverse in response to the current driving situation. 4
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The reversing feature is described as beta. “All-scenario” should therefore not be read as proof of universal capability or successful performance in every road, traffic or obstacle condition. 9
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The technology Horizon says supports it
HSD is described by Horizon as a one-stage end-to-end assisted-driving system built on its Journey 6P platform. In this approach, a model produces a driving trajectory rather than relying only on a chain of separately described driving stages. 13
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For V2.1, reports say Horizon uses continued training with a world model and end-to-end reinforcement learning. The available information describes the approach, but does not provide independent testing details or enough technical data to assess how reliably the new reversing behavior works across different situations. 32
Driving and parking changes compared with V2.0
Beyond reversing, V2.1 refines turn speeds and trajectories, uses navigation and real-time traffic information to select lanes earlier, and updates responses to stopped vehicles, pedestrians emerging from blind spots and obstacles blocking a lane. The update also adds light-and-horn warnings and changes to active-safety perception and avoidance. 6
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For parking, V2.1 can hand off from route-tracing reverse to parking assistance when it detects an available space. Reported additions include custom-space selection, remote parking, physical-key remote parking and expanded 360-degree camera and display controls. Horizon also reports a 20% improvement in narrow-space parking success; the figure is a company-reported comparison with V2.0, not an independently verified benchmark. 6
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A further change raises the reported speed at which parking assistance can be activated from 5 to 7 km/h. 35
Rollout: iCAR V27 first
Horizon announced HSD V2.1 on September 30, 2026. The phased over-the-air rollout to the iCAR V27 is scheduled to begin October 8. Timing and feature availability for other partner vehicles are to be announced by their automakers, so the announced start date does not mean every V27 will receive the update at once. 15
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What is the short answer to "What Horizon HSD V2.1 Adds—and What Its New Reversing Feature Means"?
Horizon HSD V2.1 adds beta assisted reversing for situations such as blocked routes and narrow road encounters; the company reports a 43% increase in average distance without intervention versus V2.0.
What are the key points to validate first?
Horizon HSD V2.1 adds beta assisted reversing for situations such as blocked routes and narrow road encounters; the company reports a 43% increase in average distance without intervention versus V2.0. The key distinction from V2.0 is broader, context based reversing—not simply retracing a route or backing into a parking space.
What should I do next in practice?
V2.1 also adds parking and safety refinements, including reverse to parking handoff, custom space and remote parking features, and updated hazard responses.