Service bulletins for the 2004 Cadillac XLR
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
571 on file from NHTSA, as of 2026-10-19.
About P0300 on the 2004 Cadillac XLR: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0300 are shown. Show all
| PIP5628G | 2023-09-18. Service bulletin. ENGINE. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
|---|---|
| PIP5628F | 2023-05-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
| PIP5628E | 2023-03-13. Service bulletin. EQUIPMENT:ELECTRICAL:ACCESSORY GENERATOR:OUTLETS/RECEPTACLE. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
| PIP5628E | 2022-01-24. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
| PIP5628C | 2020-11-16. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
| PIP5628B | 2020-06-15. Service bulletin. ENGINE. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
| PIP5628 | 2019-03-11. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
| 01616 | 2004-07-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. NORTHSTAR ENGINE WITH P0300 MISFIRE CODES. *TT |
| 01616 | 2004-06-03. Service bulletin. ELECTRICAL SYSTEM. 4.0L (LH2) RWD NORTHSTAR ENGINE WITH P0300 MISFIRE CODES.*MR |
| 02004 | 2004-05-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISS ON ONE BANK WITH DIAGNOSTIC TROUBLE CODE P0300 NO CAM PHASER DIAGNOSTIC TROUBLE CODE. *MR |
| 01724 | 2004-04-30. Service bulletin. ELECTRICAL SYSTEM. 4.6L LH2 ENGINE WITH A DIAGNOSTIC TROUBLE CODE (DTC) P0101, P0139, P0300, P0315, P1101, P1137, P2119 OR P2231. SIT BULLETIN 1457601. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.