Some of the symptoms above will be in built in your build, so not software update.
Why not do some simple quick checks.........
A) Inspect each shock absorber for a loose connection, damaged wire to the ACC connection and also whether there is wet hydraulic oil over the shock absorber's ACC electrical connection.
To examine each wheel area.....
1) Turn the front steering full left, on the left front look into gap behind the top half of the wheel from the front side of the wheel and check the ACC connection, its wiring and for wet hydraulic oil.
2) Turn the front steering full right, again as 1), look in behind the right wheel from the front.
3) From under the rear bumper, look at the back of the rear wheel areas and examine the ACC connections for looseness and wet hydraulic oil.
You don't need to take the wheels off to do this simple check.
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C.
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