For example:
Recently playing the "Breakout" Operation in LSA GJS 9.4 ... and can confirm 100 percent for sure that the Vehicle repair feature does work.
During a battle ... I had a Tiger II immobilized on a road by a 17 pdr ATG. The Tiger II and 17 pdr exchanged a few more rounds each, but the Tiger II prevailed ... knocking out the 17 pdr.
Over the course of the same, above mentioned, battle ... I also had a Tiger I immobilized while "Moving" through a treed area.
Looking at this Battle Group next turn ... the Tiger II was repaired and came back, but the Tiger I didn't get repaired and was removed from the Force Pool.
Note to Matrix:
In my opinion, the repair vehicle feature is a very interesting part of the game. Please leave it in LSA, going forward ... if there is ever another patch.
Thanks again

aka GameRat