There have been 46 technical service bulletins issued for 12 UD models. The UD model with the most service bulletins issued is UD UD1800 with 27 service bulletins.
| UD Model | Number of Bulletins |
|---|---|
| UD UD1800 | |
| UD UD2600 | |
| UD UD1400 | |
| UD UD2300 | |
| UD UD3300 | |
| UD UD1200 | |
| UD Ud1800cs | |
| UD UD2000 | |
| UD UD1300 | |
| UD Ud1800hd | |
| UD Ud2300dh | |
| UD Ud2300lp |
| Bulletin Date: | Jun. 15, 2016 |
| Component: | Engine and engine cooling. |
| Bulletin Summary: | Additional causes for high soot and regeneration frequency |
| UD models covered in this TSB: |
UD UD1800.
|
| Bulletin Date: | Oct. 1, 2012 |
| Component: | Software. |
| Bulletin Summary: | Ud trucks: to reduce the hydrocarbon and the engine soot build up, an engine hardware and software has been updated and introduced. Models 2011-2013 ud1800, 2000, 2300, 2600, 3300. |
| UD models covered in this TSB: |
2011 UD UD1800,
2012 UD UD1800,
2013 UD UD1800,
2011 UD UD2000,
2012 UD UD2000,
2013 UD UD2000,
2011 UD UD2300,
2012 UD UD2300,
2013 UD UD2300,
2011 UD UD2600,
2012 UD UD2600,
2013 UD UD2600,
2011 UD UD3300,
2012 UD UD3300,
2013 UD UD3300.
|
| Bulletin Date: | Sep. 1, 2012 |
| Component: | Automatic transmission. |
| Bulletin Summary: | Ud truck: the cooler hose retaining ring has disengaged, causing possible fluid leak at transmission oil cooler hose connection. Models 2011 ud2600 and ud3300. |
| UD models covered in this TSB: |
2011 UD UD2600,
2011 UD UD3300.
|
| Bulletin Date: | Mar. 1, 2012 |
| Component: | Engine. |
| Bulletin Summary: | Ud trucks: procedure information regarding dpf assembly or replacement of dpf filter on certain model year truck engine, if diagnostics indicate signs of cracking, visual damage or presence of soot accumulation. |
| UD models covered in this TSB: |
2011 UD UD1800,
2011 UD UD2000,
2011 UD UD2300,
2011 UD UD2600,
2011 UD UD3300.
|
| Bulletin Date: | Jan. 15, 2012 |
| Component: | Engine. |
| Bulletin Summary: | Ud trucks: information is being provided regarding the replacement/installation of an injector nozzle sleeve for the engine. No model or model years listed. |
| UD models covered in this TSB: |
2011 UD UD1800,
2011 UD UD2000,
2011 UD UD2300,
2011 UD UD2600,
2011 UD UD3300.
|