Chevrolet Silverado 2005 — technical service bulletin
Bulletin 3293 · NHTSA communication 10013525 · issued Apr 21, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2005
model years
2
vehicle entries
Official summary
P0622 or charge indicator on after calibrating engine control module (ecm). *tt
Vehicles covered
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.