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
By topic
Only bulletins with component: Transmission and driveline are shown. Show all
| PIC6244C | 2018-11-13. Service bulletin. POWER TRAIN. This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, and P1E22. Technician will need to replace the transmission. Technician will need to review the latest version of PIP5321 for the Volt and PIP5390 for the Malibu. |
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| PIC6244B | 2018-11-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, and P1E22. Technician will need to replace the transmission. Technician will need to review the latest version of PIP5321 for the Volt and PIP5390 for the Malibu. |
| 18277 | 2018-11-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 18277 - Customer Satisfaction Program - Certain vehicles equipped with RPO MNH (6 Speed Automatic Transmission) may have been built without a transmission case assembly cup plug. As a result, lubrication flow within the transmission may be compromised, and the transmission will wear prematurely. The customer may notice noise coming from the transmission area, or rough or irregular shifting. If the customer continues to drive the vehicle for an extended period after noticing these signs of wear, transmission failure may occur, resulting in a loss of propulsion. Replace Transmission. |
| PIP5390E | 2018-10-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary Information communication advises the technician that the Malibu 5ET50 Hybrid Transmission and Component has a part restriction program. The dealer will need to call General Motors Technical Assistance Center (Technical Assistance Center) for further assistance. |
| PIP5557C | 2018-09-17. Service bulletin. ENGINE; POWER TRAIN. 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. |
| PIP5508B | 2018-08-06. Service bulletin. POWER TRAIN. This Preliminary Information communication advises the technician that the Product Quality Center has ended the part restriction for the T87A Transmission Control Module. |
| PIP5557B | 2018-06-18. Service bulletin. POWER TRAIN. This Preliminary information communicates the Control Valve Body spacer plate orifice #33 may be restricted as root cause for the may 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. |
| 060089026N | 2018-06-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:SUN/MOON ROOF ASSEMBLY; STRUCTURE:BODY:DOOR; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); VISIBILITY:WINDSHIELD; ELECTRONIC STABILITY CONTROL (ESC). This warranty bulletin provides labor operation numbers for customer concerns that cant be duplicated. |
| PIE0441A | 2018-06-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This engineering informational bulletin ends the need for information from the field on vehicles that have the condition of Shift to Park Message Displayed. |
| PIE0441 | 2018-06-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This engineering informational bulletin is requesting information from the filed on vehicles that have the condition of Shift to Park Message Displayed. |
| 080730026E | 2018-06-04. Service bulletin. POWER TRAIN. This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped. |
| 040730013D | 2018-06-04. Service bulletin. POWER TRAIN; ENGINE; EQUIPMENT. This informational bulletin provides information to dealership personnel on automatic transmission shift and engine drivability concerns and/or MIL ON due to aftermarket oil bath air filter use. |
| 17-NA-066 | 2018-05-21. Service bulletin. POWER TRAIN. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test. |
| PIC6303 | 2018-05-21. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This Preliminary information communicates to look for other codesP0AEE, P0AF3, P0BD2, P0BD7, P0BDC, P0BE1 if a customer comes in with a Mil Request. |
| PIC6297 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION. This Preliminary information communicates that engineering is working on a fix for P3260. |
| 17-NA-066 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test. |
| 18NA121 | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This technical bulletin provides a procedure to have the valve body spacer plate replacement and transmission control module reprogramming with the latest software. |
| 080730035C | 2018-05-21. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| PIC6330 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates is to commuate teardown finds. As we move away from Transmisison Replacements to internal service. |
| PIP5390D | 2018-05-21. Service bulletin. POWER TRAIN. This Preliminary Information communication advises the technician that the Malibu 5ET50 Hybrid Transmission and Component has a part restriction program. The dealer will need to call General Motors Technical Assistance Center (Technical Assistance Center) for further assistance. |
| 17NA190 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This informational bulletin provides information for technicians during diagnosis for DTC U0420. |
| 060089031E | 2018-05-21. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. This informational bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification. |
| 18NA035 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This informational bulletin explains a normal characteristic of a trans shift when cold temps are present. |
| 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. |
| 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.