How to fix driver side power seat? on 2007 Chevrolet Avalanche

the driver side power seat stopped working, partially. The butt will raise but the front part of the seat where the knees hang over will not come up. how do we fix this?

1 answer
YOU SHOULD HAVE APPROX 4 TO 6 SEAT MOTORS SEE WHICH ONE IS BAD AND CALL FOR PRICES.