I had noticed a limitation in the regen in the past when getting off the highway, that it wouldn't go to 4 chevrons above ~55 mph. It would blink and drop to 3 chevrons. Once I slowed below that speed the 4th chevron would stay. But I found a few days ago in ECON mode (no engine use, EV only) that the level of recharge I was getting from the paddles was pretty limited (maxing out at halfway to the first tick on the recharge spedometer thingy); even when applying the brakes a little more aggressively. Granted it was a winter day, but not overly cold outside (~36F/2C?) and the car is kept in a garage, so a little warmer than ambient temperatures overnight. There was ~10 miles used since the charge, so it was probably at ~75-80% SoC. And the car should have been fairly warm with the heater and general battery/motor use. I know there have been long discussions about triggering the engine when regenerating at very high SoC, but I am finding that the regen is limiting itself now in the winter (even in mild temperatures), and/or between 80 and 95% SoC. At lower SoC I didn't seem to have that regen limitation anymore and the paddles and brakes could bring the charge spedometer all the way to the bottom of the gauge. Not a complaint, but just something I had noticed for the first time after 4 months of driving it. Presumably, it uses more of the disk brakes when I hit the brakes when the level of regen is limited. Something to keep in mind over the colder months. I just read the relevant section of the manual: "In the following situations, the stage may not change and the stage number will blink even if you pull back the selector. The deceleration stage may decrease or cancel automatically: The high voltage battery is fully charged or its temperature is too cold or too hot The speed of the vehicle is beyond the deceleration range with SPORT mode off Hybrid system protection is needed The paddle selector is operated while your vehicle is stopped automatically by ACC with LSF If either paddle selector is operated, ACC with LSF will cancel automatically." Not sure if anyone else has noticed this regen limit in cold temps and/or at moderately high SoC.