Service bulletins for the 2020 Cadillac Escalade
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.
755 on file from NHTSA, as of 2026-10-19.
About P0340 on the 2020 Cadillac Escalade: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P0340 are shown. Show all
| PIP5724 | 2020-05-11. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates The vehicle may have an SES lamp with any of the following DTC P06DA, P06DB, P06DC, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Possible crank no start or a stall. Possible wiring jumper harness pintched between the X154 connector bracket and the front engine cover on lower left side of the engine. |
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| PIP5335D | 2019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Codes P0340 and P0341 setting at times. Technician should use normal published Service Information diagnostics. If normal Service Information diagnostics does not isolate the concern, inspect for corrosion in connector X154 located on the front cover next to the vacuum pump. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.