Cadillac Escalade Ext 2002–2003 — technical service bulletin
Bulletin 030419003 · NHTSA communication 10012557 · issued Aug 1, 2003
Technical service bulletin
communication type
Power Train
component
2002–2003
model years
17
vehicle entries
Official summary
Fluid leak from front of vehicle add teflon tape to front axle vent plug threads. *eh
Vehicles covered
- 2002 Cadillac Escalade Ext
- 2003 Cadillac Escalade Ext
- 2002 Chevrolet Avalanche
- 2003 Chevrolet Avalanche
- 2002 Chevrolet Silverado
- 2003 Chevrolet Silverado
- 2002 Chevrolet Suburban
- 2003 Chevrolet Suburban
- 2002 Chevrolet Tahoe
- 2003 Chevrolet Tahoe
- 2002 GMC Denali
- 2003 GMC Denali
- 2002 GMC Sierra
- 2003 GMC Sierra
- 2002 GMC Yukon
- 2003 GMC Yukon
- 2003 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.