During the Christmas period, Tesla’s AI team demonstrated an impressive pace of iteration. Just one day after rolling out FSD (Supervised) v14.2.2, Tesla urgently released v14.2.2.1. According to real-world testing by an experienced evaluator, this update delivers outstanding performance in complex rainy conditions—surpassing the driving ability of most human drivers and marking a significant recent breakthrough in intelligent driving.
The test was conducted by Tesla owner @BLKMDL3 in rainy conditions in Los Angeles. At the time, standing water was present on the roads, and lane markings in some areas were blurred or completely washed out—representing a highly challenging driving environment. The results showed no steering lag or hesitation, confident lane-change decisions, and smooth, precise vehicle control. Overall performance approached the level seen in Austin’s autonomous robotaxi operations.
This level of stability is especially critical in rainy conditions. Even on dark, wet, and winding mountain roads, the system consistently kept the vehicle centered in the lane, with well-judged speeds and steering timing. Through continuous curves, the drive remained calm and controlled—an overall stability that clearly outperformed how most human drivers would handle the same scenario.
Beyond public roads, parking performance was equally impressive. In tight parking spaces requiring consecutive sharp turns, the system completed the maneuver cleanly in a single attempt without human intervention. Only in edge cases—such as when adjacent vehicles were parked over the lines—did minor deviations occur, which the system quickly corrected through automatic fine adjustments. This highlights its strong dynamic adaptability.
Notably, even in extreme environments with missing or unclear lane markings, v14.2.2.1 demonstrated lane and turning-line recognition accuracy that exceeded human capability. Upon entering new road segments, vehicle positioning showed virtually zero deviation. This performance is backed by Tesla’s powerful environmental perception algorithms and underscores the system’s growing technical strength.
The breakthrough performance of FSD v14.2.2.1 in adverse weather conditions not only validates the technical feasibility of full-scenario autonomous driving, but also redefines industry standards for automated driving in extreme environments. For users, this translates into safer and more reliable intelligent driving experiences, while setting a new technological benchmark for the industry. The long-envisioned goal of fully autonomous driving now appears increasingly achievable within the next few years.
