When accelerating into first gear the engine shifts hard like a jump into second instead of a smooth transition. What might cause that?

What is your question?

Vehicle jumps when accelerating into first gear. Like it is shifting very hard. You can feel it. Sometimes there is a clunk sound

What makes this problem better or worse?

Better if just try to accelerate very gently

How long has your 2009 Jeep Grand Cherokee had this problem?

Year