Service bulletins for the 2022 Chevrolet Bolt EV
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.
515 on file from NHTSA, as of 2026-10-19.
About U1345 on the 2022 Chevrolet Bolt EV: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
By topic
Only bulletins with trouble code: U1345 are shown. Show all
| 22-NA-139 | 2022-08-04. Service bulletin. POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated and/or Driver Information Center (DIC) Displays Service Transmission Now, Unable to Shift Soon or Service Transmission, Unable to Shift Message with DTC U1345 or U135A Set. |
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| PIC6463 | 2022-07-25. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer if a vehicle comes in for an MIL or a message with DTC U1345 Engine Control Module LIN Bus 1 (or Bus 21) and/or DTC U135A that engineering is working on the issue and to clear the codes and return to the customer, Mil and message still may be one but at that time will drive normally for the next 100 ignition cycles. |
| 22-NA-139 | 2022-07-14. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated and/or Driver Information Center (DIC) Displays Service Transmission Now, Unable to Shift Soon or Service Transmission, Unable to Shift Message with DTC U1345 or U135A Set. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.