Service bulletins for the 2018 Chevrolet Malibu
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.
1077 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
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Only bulletins with component: Automatic transmission are shown. Show all
| 16NA338 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. This Bulletin provides guidelines for Dealers required to contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns. |
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| PIP5557A | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates the Control Valve Body spacer plate orifice #33 may be restricted as root cause for themay not go above 30 mph, may be stuck in 2nd gear, will not upshift, MIL is on, and/or DTC P2821 concern,to replace the plate as necessary. |
| PIP5551 | 2018-02-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; STRUCTURE. This Preliminary information communicates to replace the valve body and solenoid body assemblies with both spacer plates for a DTC P2820concern if not able to clean the valve body or solenoid body assemblies. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.