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Service bulletins for the 2023 Chevrolet Trailblazer

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
23-NA-1412024-09-06. Service bulletin. ENGINE. This informational bulletin advises the technician that the engine and related parts will be debited if found that the tech did not properly prepare the engine block from dirt and debris in bolt holes or if found that the block was damaged by the tech.
16-NA-2222024-09-05. Service bulletin. ENGINE. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
09-06-04-026Y2024-09-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
07-06-01-016J2024-09-05. Service bulletin. ENGINE. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
05-06-04-022V2024-09-05. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
01-06-01-011P2024-09-05. Service bulletin. ENGINE. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
PIT61962024-09-04. Service bulletin. UNKNOWN OR OTHER; VEHICLE SPEED CONTROL. This Preliminary information communicates to the tech the diagnostic steps if they encounter at condition where the adaptive cruise, regular cruise control or lane keep assist turns on and off while driving or is inoperative.
01-00-89-010S2024-08-30. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
00-06-01-012N2024-08-30. Service bulletin. ENGINE. This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
18-NA-3062024-08-28. Service bulletin. UNKNOWN OR OTHER. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
General Communication2024-08-26. Service campaign. ELECTRICAL SYSTEM. Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.
PI0754G2024-08-17. Service bulletin. VISIBILITY/WIPER. This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
PIC6553A2024-08-16. Service bulletin. POWER TRAIN. This Preliminary information communicates the direction to take when a customer complains about a vibration when parking on a steep slope with engine running.
24-NA-1412024-08-15. Service bulletin. POWER TRAIN. GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.
PIC6486G2024-08-15. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This Preliminary information communicates the part ordering restriction of the 6.2L L87 engine.
18-NA-2792024-08-14. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
PIC65532024-08-13. Service bulletin. ENGINE. This Preliminary information communicates the direction to take when a customer complains about a vibration when parking on a steep slope with engine running.
PIC6486F2024-08-13. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.
12-01-37-001G2024-08-13. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
00-03-10-002M2024-08-13. Service bulletin. WHEELS. This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels.
16-NA-1582024-08-13. Service bulletin. UNKNOWN OR OTHER. This service bulletin describes the U.S. Dealer Special Tool Loan Program process.
PIP59782024-08-12. Service bulletin. POWER TRAIN. This Preliminary information communicates the possibility of dtc p0299 setting as a result of the vacuum supply line from the vacuum pump to the wastegate solenoid being restricted with adhesive bonding material.
24-NA-0212024-08-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This service bulletin provides a procedure to test and replace, if needed, the pressure sensor and/or the oil pump if the codes noted set due to the debris left in the pump during production.
17-NA-1572024-07-30. Service bulletin. ENGINE. This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter.
99-04-20-002O2024-07-30. Service bulletin. POWER TRAIN. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.

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