reverse docs

docs/CARS.md

@@ -22,10 +22,10 @@ A supported vehicle is one that just works when you install a comma three. All s
 |Chevrolet|Bolt EV 2022-23|2LT Trim with Adaptive Cruise Control Package|openpilot available[<sup>1</sup>](#footnotes)|3 mph|6 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-empty.svg)](##)|GM|
 |Chevrolet|Silverado 1500 2020-21|Safety Package II|openpilot available[<sup>1</sup>](#footnotes)|3 mph|6 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-empty.svg)](##)|GM|
 |Chevrolet|Volt 2017-18[<sup>3</sup>](#footnotes)|Adaptive Cruise Control (ACC)|openpilot|0 mph|6 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-empty.svg)](##)|OBD-II|
-|Chrysler|Pacifica 2017-18|Adaptive Cruise Control (ACC)|Stock|0 mph|9 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
+|Chrysler|Pacifica 2017-18|Adaptive Cruise Control (ACC)|Stock|0 mph|39 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
 |Chrysler|Pacifica 2019-20|Adaptive Cruise Control (ACC)|Stock|0 mph|39 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
 |Chrysler|Pacifica 2021|All|Stock|0 mph|39 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
-|Chrysler|Pacifica Hybrid 2017-18|Adaptive Cruise Control (ACC)|Stock|0 mph|9 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
+|Chrysler|Pacifica Hybrid 2017-18|Adaptive Cruise Control (ACC)|Stock|0 mph|39 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
 |Chrysler|Pacifica Hybrid 2019-22|Adaptive Cruise Control (ACC)|Stock|0 mph|39 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
 |comma|body|All|openpilot|0 mph|0 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|None|
 |Genesis|G70 2018-19|All|Stock|0 mph|0 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|Hyundai F|
@@ -88,7 +88,7 @@ A supported vehicle is one that just works when you install a comma three. All s
 |Hyundai|Tucson Diesel 2019|Smart Cruise Control (SCC)|openpilot available[<sup>1</sup>](#footnotes)|0 mph|0 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|Hyundai L|
 |Hyundai|Tucson Hybrid 2022|All|openpilot available[<sup>1</sup>](#footnotes)|0 mph|0 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|Hyundai N|
 |Hyundai|Veloster 2019-20|Smart Cruise Control (SCC)|Stock|5 mph|0 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|Hyundai E|
-|Jeep|Grand Cherokee 2016-18|Adaptive Cruise Control (ACC)|Stock|0 mph|9 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
+|Jeep|Grand Cherokee 2016-18|Adaptive Cruise Control (ACC)|Stock|0 mph|39 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
 |Jeep|Grand Cherokee 2019-21|Adaptive Cruise Control (ACC)|Stock|0 mph|39 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|FCA|
 |Kia|Ceed 2019|Smart Cruise Control (SCC)|Stock|0 mph|0 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|Hyundai E|
 |Kia|EV6 (with HDA II) 2022|Highway Driving Assist II|openpilot available[<sup>1</sup>](#footnotes)|0 mph|0 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|Hyundai P|

selfdrive/car/chrysler/interface.py

@@ -23,14 +23,15 @@ class CarInterface(CarInterfaceBase):
     elif candidate in RAM_DT:
       ret.safetyConfigs[0].safetyParam |= Panda.FLAG_CHRYSLER_RAM_DT
 
-    ret.minSteerSpeed = 3.8  # m/s
+    # Dealers can flash newer EPS firmware on older Chrysler platforms, raising their minimum steering speed.
-    # Traditionally, CAR.PACIFICA_2019_HYBRID, CAR.PACIFICA_2020, CAR.JEEP_CHEROKEE_2019 have newer firmware with higher steering speeds.
+    # TODO: allow these cars to steer down to 13 m/s if already engaged.
-    # However, the dealer can reflash the EPS in older cars with newer firmware, raising their minimum steering speed with it.
+    ret.minSteerSpeed = 17.5  # m/s 17 on the way up, 13 on the way down once engaged
     if candidate not in RAM_CARS:
       for fw in car_fw:
-        if fw.ecu == 'eps' and fw.fwVersion[:4] >= b"6841":
+        # Some older EPS firmware allow steering down to ~9 mph.
-          # TODO: allow these cars to steer down to 13 m/s if already engaged.
+        # The 6841 prefix is the oldest FW seen on newer cars with the higher limit.
-          ret.minSteerSpeed = 17.5  # m/s 17 on the way up, 13 on the way down once engaged.
+        if fw.ecu == 'eps' and fw.fwVersion[:4] <= b"6841":
+          ret.minSteerSpeed = 3.8  # m/s
 
     # Chrysler
     if candidate in (CAR.PACIFICA_2017_HYBRID, CAR.PACIFICA_2018, CAR.PACIFICA_2018_HYBRID, CAR.PACIFICA_2019_HYBRID, CAR.PACIFICA_2020):