Chevrolet Avalanche 2008 — technical service bulletin
Bulletin 14581 · NHTSA communication 10089979 · issued May 14, 2015
Technical service bulletin
communication type
Engine and Engine Cooling
component
2008
model years
15
vehicle entries
Official summary
14581 - emission recall. General motors has decided to conduct a voluntary emission recall involving certain 2008 chevrolet avalanche, silverado, suburban, and tahoe; and gmc sierra, yukon, and yukon xl vehicles equipped with california bin 4 emissions rpo nu5. The design of the fuel control system did not adequately control carbon monoxide emissions under certain operating conditions. Dealers are to reprogram the engine control module with a modified fuel control calibration.
Vehicles covered
- 2008 Chevrolet Avalanche
- 2008 Chevrolet Silverado 1500
- 2008 Chevrolet Silverado 2500
- 2008 Chevrolet Silverado 3500
- 2008 Chevrolet Suburban
- 2008 Chevrolet Suburban 1500
- 2008 Chevrolet Suburban 2500
- 2008 Chevrolet Tahoe
- 2008 GMC Sierra 1500
- 2008 GMC Sierra 2500
- 2008 GMC Sierra 3500
- 2008 GMC Yukon
- 2008 GMC Yukon XL
- 2008 GMC Yukon XL 1500
- 2008 GMC Yukon XL 2500
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.