Question about GMC Sierra
Driver side seat bottom will not move up or down, it will side and back reclines ok
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: driver side car seat
The seat may be too far forward, and when it is at the forward limits, the seat sticks. I get in the seat, and I press the back button whilst pushing hard with my feet against the floor.
Posted on Nov 04, 2008
SOURCE: Power seat won't recline
are there any other leavers or dials around the seat that you can see that may operate the back rest independantly?
can you see the motors are they intact?
is there a button that selecets the particular funtion you wish to do?
it is functional, can you test that?
dirt is a major key in faulty switcches and can oftem be cleaned
Posted on May 05, 2009
The electric adjustment motor has a drive-gear that engages a gear on the shaft of the adjustment screw (90 degree engagement). The gear on the adjustment shaft looses a tooth. Adjustment motor whines, drive gear on adjustment motor spins, no action though because of missing tooth. A 12mm 1/4" drive socket on a wiggler (universal) on the end of a 6" extension can engage the not on the end of the exposed large adjustment shaft and, as the shaft is lightly loaded and the electrical switch engaged, one can get the shaft to spin almost one revolution at a time until the seat is high enough. It is hard to reach the nut necessary (inside the dull-grey clevis that the shaft threads into) and I had to take off the seat pad by removing the 4@ 13mm nuts (and 3 @10mm nuts holding the center section with the driver's cushion) to more-or-less easily access the situation. Dealership wanted well over $1000. to fix it. Three out of my 4 up and down adjustment motors are running, but don't adjust. PS, on my 2001 Park Avenue on each seat there is one adjustment motor for the front edge up and down, one adjustment motor for the rear edge up and down, one adjustment motor for the seat fore and aft, and one adjustment motor for the sear back tilt. Lots of complication, not so much on durability. We do not swap out drivers and adjust the seats excessively. Weak design on the one internal gear. Manually adjust it, unplug the electric to the motor, Drive happy again.
Posted on Aug 13, 2010
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