Since last few days my rear left door lock was getting jammed and was not locking. The lock lever didn’t go down when we lock the car. So I had to manually press it down and lock it. But since last 2 days now my front left door lock is also behaving same way. When I tried to manually lock unlock these doors repeatedly I did not find their operation smooth and the lock knobs felt to be stuck or something like that. Now only my right door locks work well. Should I call a locksmith?