P0700 on the 2004 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.
| 02051 | 2004-07-09. Service bulletin. INTERMITTENT SERVICE ENGINE SOON (SES) LIGHT COMES ON AND CODE P0700 ALONG WITH DIAGNOSTIC TROUBLE CODE P0742 STORED. *TT |
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| 01473 | 2003-11-25. Service bulletin. ALLISON LCT1000 DIAGNOSTIC TROUBLE CODE (DTC) P0700 UNABLE TO COMMUNICATE WITH THE TRANSMISSION CONTROL MODULE (TCM) USING THE TECH 2. *TT |
| 01343 | 2003-11-20. Service bulletin. ALLISON LCT1000 DIAGNOSTIC TROUBLE CODE (DTC) P0700 AND NO COMMUNICATION WITH THE TECH 2. *TT |
3 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.