what's the cost to repair the shift solenoid?

! took my 2004 chevy impala to the shop . they told me my "trans shift control valve "needed to be replaced. Is that the same as solenoid ? and if so , they told me the cost to replace it is 1,300.00 . Is that around the cost to replace it on my car ?

Where did you go to have it fixed? Do you mind me asking?