P2066 on the 2005 Cadillac CTS
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.
| 08-08-49-001 | 2008-03-27. Service bulletin. INACCURATE FUEL GAGE READINGS, FUEL GAGE READS EMPTY WHEN THERE IS FUEL IN TANK, FUEL LEVEL LOW MESSAGE IN DIC, DTC P2066 SET (REPROGRAM ECM). WITH 2.8L OR 3.6L ENGINE (VINS T, 7 - RPO'S LP1, LY7). *NJ |
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| 4560 | 2007-12-11. Service bulletin. FUEL GAUGE STUCK ON EMPTY DTC P2066 (2.8L (LP1) OR 3.6L (LY7) ENGINES). *NJ |
2 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.