# U1000 on the 2004 GMC Yukon

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name U1000

- [10007624](https://open.wenmarpro.com/bulletins/10007624), 2004-07-06: SERVICE 4WD LIGHT ON NO CODES BESIDES U1000 CODES OR C0550. \*MJ
- [10004200](https://open.wenmarpro.com/bulletins/10004200), 2003-11-21: SERVICE 4WD LIGHT ON NO CODES BESIDES U1000 CODES. SERVICE VME. \*TT
- [10004104](https://open.wenmarpro.com/bulletins/10004104), 2003-11-19: SERVICE 4WD LIGHT ON, THE 4WD IS INOPERATIVE AND NO CODES BESIDES U1000 CODES. SERVICE VME. \*TT