Chevrolet Silverado 2004–2005 — technical service bulletin

Bulletin 0508132001 · NHTSA communication 10013460 · issued Jan 1, 2005

Technical service bulletin

communication type

Equipment

component

2004–2005

model years

vehicle entries

Official summary

Accessory power outlet (apo) turns off automatically - parallel hybrid truck (rpo hp2). *tt

Vehicles covered

2004 Chevrolet Silverado
2005 Chevrolet Silverado
2004 GMC Sierra
2005 GMC Sierra

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.