Hello!

Just purchased "new to us" 2009 Suburban from a dealership yesterday, all door locks and windows worked fine before we drove off the lot. Now all but the driver lock moves slightly while the driver lock continues to go all the way up and down. Also, the rear automatic windows stopped going up and down from the rear switches but the driver switch works perfect for all windows like the back seat lock out is stuck? Passenger side windows work fine but door lock will only lock and unlock driver door, not passenger door, slight movement but no full action.

Checked fuses under driver side, no issues that I saw there is a clicking sound in the interior fuse box when pushing the lock and unlock button, stops when I take the driver door harness out (:-P). No visual issues with wiring. The actuators are trying to fire and when I click lock or unlock continuously it seems to make less power sound for about 4-5 pushes then it will lock or unlock only the driver door at the moment. These all worked earlier yesterday when we purchased it, hoping its a simple fix.

Put a new battery in today, alternator is also new and output is normal on gauges. Any advice or where to look next help is much appreciated. We were thinking replacing the driver and passenger door power switch assembly.

PS - Power mirrors are working fine.

Thanks for your help!

 

You should have some sort of warranty, at least 30 days. I would take it back. Lock actuators are built into the door latch assembly.

 

We do have a powertrain warranty, the vehicle was sold as is due to its age and mileage. However, regardless there is no way 3 lock actuators went out at the same time and both window switches in the rear are unresponsive but the front driver opens all windows fine and the driver door lock. The other locks are not dead in the water, the actuators move slightly as if the relay is failing or there is not enough power being sent from the driver unit to the other sub-units in each door.

I will wait for a couple more opinions, looking to get this fixed without a dealership charging $3,000 for a $150 part and labor.