Cadillac CTS 2004 — technical service bulletin

Bulletin 3025 · NHTSA communication 10008832 · issued Jan 1, 2004

Technical service bulletin

communication type

Engine and Engine Cooling

component

2004

model years

vehicle entries

Official summary

04 model year 4.8.5.3.7.6.0 gen iii engine piston pin information. *mj

Vehicles covered

2004 Cadillac CTS
2004 Cadillac Escalade
2004 Chevrolet Avalanche
2004 Chevrolet Corvette
2004 Chevrolet Express
2004 Chevrolet Silverado
2004 Chevrolet Suburban
2004 Chevrolet Tahoe
2004 GMC Savana
2004 GMC Sierra
2004 GMC Yukon
2004 GMC Yukon XL
2004 Hummer H2
2004 Pontiac Gto

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.