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Service bulletins for the 2020 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.

770 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
20NA2182021-05-24. Service bulletin. POWER TRAIN. This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.
20NA0472021-05-24. Service bulletin. POWER TRAIN. This service bulletin provides a service procedure to correct conditions of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set.
18NA1462021-05-24. Service bulletin. EQUIPMENT. This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).
18NA0732021-05-24. Service bulletin. EQUIPMENT. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
16NA3382021-05-24. Service bulletin. POWER TRAIN. This Warranty Admin service bulletin provides guidelines for Dealers Not Required and 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 for Canadian Dealers only.
PIT58392021-05-17. Service bulletin. EQUIPMENT. This Preliminary information communicates to GM dealers that the above mentioned concern is software related and that General Motors is working on a solution.
PIP5598D2021-05-17. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates the possibility of a crank no start or extended crank condition due to exhaust cam reluctor being out of position.
PIP5803A2021-05-17. Service bulletin. EQUIPMENT; ENGINE. This Preliminary information communicates to technician's if they remove the front timing cover when performing a repair, they should inspect the timing chain guide upper bolt for being loose. This document is an attempt to collect parts so engineering can investigate the concern.
PIP58032021-05-17. Service bulletin. EQUIPMENT; POWER TRAIN. This Preliminary information communicates to technician's if they remove the front timing cover when perprming a repair, they should inspect the timing chain guide upper bolt for being loose. This document is an attempt to collect parts so engineering can investigate the concern.
PIP5733Q2021-05-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
PIP5733P2021-05-17. Service bulletin. POWER TRAIN. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
21NA0612021-05-10. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs (North America ONLY).
110089005Q2021-05-03. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
1008110001I2021-05-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on proper use of floor mats.
21NA0432021-05-03. Service bulletin. EQUIPMENT. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer.
20NA1382021-05-03. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
20NA1322021-05-03. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
20NA0472021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a service procedure to correct conditions of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set.
19NA2002021-05-03. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.
18NA3062021-05-03. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
18NA0992021-05-03. Service bulletin. EQUIPMENT. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
18NA0692021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a service procedure to correct conditions of Poor Engine Performance in Extremely cold weather conditions, CAC Icing, MIL Illuminated with DTCs set.
16NA1092021-05-03. Service bulletin. STEERING. This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
PIT5745B2021-04-19. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw.
PIP5733N2021-04-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.