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RecallGazette

Vehicle problems, recalls & safety intelligence

Cadillac Escalade 1999–2005technical service bulletin

Bulletin 3526 · NHTSA communication 10016558 · issued Sep 22, 2005

Technical service bulletin
communication type
Power Train
component
1999–2005
model years
49
vehicle entries

Official summary

Intermittent service 4wd light comes on with diagnostic trouble code (dtc) c0306 or c0308 stored in tccm. *tt

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.