Cadillac Escalade 2007–2012 — technical service bulletin
Bulletin 08-07-30-021G · NHTSA communication 10043829 · issued Mar 1, 2012
Technical service bulletin
communication type
Power Train
component
2007–2012
model years
59
vehicle entries
Official summary
Gm: loss of high speed gmlan communications, intermittent no crank, ip gage fluctuation, intermittent door look cycling, intermittent chime operation, various ip warning lamps illuminated, transmission may not shift, communication dtcs u0073, u0100, u0101, u0102 u0121 or u0140 set (repair terminals in transmission harness connector, repair open or shorted gm high speed lan circuits, open or shorted data link resistor, corrosion or poor connections in various control module connectors). *js
Vehicles covered
- 2007 Cadillac Escalade
- 2008 Cadillac Escalade
- 2009 Cadillac Escalade
- 2010 Cadillac Escalade
- 2011 Cadillac Escalade
- 2009 Cadillac Escalade Hybrid
- 2007 Cadillac XLR
- 2008 Cadillac XLR
- 2009 Cadillac XLR
- 2007 Chevrolet Avalanche
- 2008 Chevrolet Avalanche
- 2009 Chevrolet Avalanche
- 2010 Chevrolet Avalanche
- 2011 Chevrolet Avalanche
- 2012 Chevrolet Avalanche
- 2007 Chevrolet Corvette
- 2008 Chevrolet Corvette
- 2009 Chevrolet Corvette
- 2010 Chevrolet Corvette
- 2011 Chevrolet Corvette
- 2012 Chevrolet Corvette
- 2007 Chevrolet Silverado
- 2008 Chevrolet Silverado
- 2009 Chevrolet Silverado
- 2010 Chevrolet Silverado
- 2011 Chevrolet Silverado
- 2012 Chevrolet Silverado
- 2009 Chevrolet Silverado Hybrid
- 2007 Chevrolet Suburban
- 2008 Chevrolet Suburban
- 2009 Chevrolet Suburban
- 2010 Chevrolet Suburban
- 2011 Chevrolet Suburban
- 2012 Chevrolet Suburban
- 2007 Chevrolet Tahoe
- 2008 Chevrolet Tahoe
- 2009 Chevrolet Tahoe
- 2010 Chevrolet Tahoe
- 2011 Chevrolet Tahoe
- 2012 Chevrolet Tahoe
- 2008 Chevrolet Tahoe Hybrid
- 2009 Chevrolet Tahoe Hybrid
- 2007 GMC Sierra
- 2008 GMC Sierra
- 2009 GMC Sierra
- 2010 GMC Sierra
- 2011 GMC Sierra
- 2012 GMC Sierra
- 2009 GMC Sierra Hybrid
- 2007 GMC Yukon
- 2008 GMC Yukon
- 2009 GMC Yukon
- 2010 GMC Yukon
- 2011 GMC Yukon
- 2012 GMC Yukon
- 2008 GMC Yukon Hybrid
- 2009 GMC Yukon Hybrid
- 2008 Hummer H2
- 2009 Hummer H2
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.