Chevrolet Silverado 2001–2006 — technical service bulletin
Bulletin 4150 · NHTSA communication 10020582 · issued Oct 11, 2006
Technical service bulletin
communication type
Fuel System, Other
component
2001–2006
model years
12
vehicle entries
Official summary
Dual tanks fuel gauge defaults to empty - new calibrations. Stall start tank transfer. Vehicles with 6.6l rpo lb7 or lly engines. *kb
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.