P0454 on the 1996 GMC Sierra
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| PIE-0043 | 2010-11-15. Service bulletin. CHEVROLET:GMC: ENGINEERING INFORMATION-FUEL TANK PRESSURE SENSOR, DTCS P0446, P0451 OR P0454 SET. GMC ENGINEERING IS ATTEMPTING TO DETERMINE THE ROOT CAUSE OF THE ABOVE CONCERN. *PE |
|---|
1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.