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Service bulletins for the 2024 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
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.
A242435780-012024-08-15. Service campaign. UNKNOWN OR OTHER. Emission Recall - certain vehicles may have The engine control module may not properly control engine ignition timing following certain Auto Engine Stop/Start events. If this were to occur, the Malfunction Indicator Lamp (Check Engine Light) would illuminate, and the engine may run rough or knock. In some cases, if the vehicle is driven with engine knock, engine damage could occur. Proper engine ignition timing control will resume following a subsequent Auto Engine Stop/Start event. This is a voluntary Emission Recall. Dealers are to reprogram the Engine Control Module..
PIP5932D2024-08-13. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to dealers engine wiring harness inspections and engine oil pump diagnostic testing related to MIL on with P0521, P06DD or P06DE.
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.
PIP5974B2024-08-13. Service bulletin. POWER TRAIN. This Preliminary information communicates possible transmission 1-2-3-4-5-6 snap rings out of round causing code p0746 or p0747.
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.
PIP59802024-08-13. Service bulletin. POWER TRAIN. This Preliminary Information communication advises the technician how to diagnose and repair a low mileage no movement concern in vehicle equipped with a VT40 Transmission.
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.
PIP5974A2024-08-13. Service bulletin. POWER TRAIN. This Preliminary information communicates possible transmission 1-2-3-4-5-6 snap rings out of round causing code p0746 or p0747.
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.
PIC65482024-08-12. Service bulletin. UNKNOWN OR OTHER; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. This Preliminary information communicates to a technician the steps necessary to correct a cruise control or intellibeam inoperative condition after front camera replacement.
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.
N242446290-022024-07-30. Service campaign. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. vehicles may have a condition in which the clutch backing plate retaining ring and/or the clutch piston retaining ring inside the transmission are out of specification. Dealers are to overhaul the clutch piston housing.
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.
24-NA-1232024-07-18. Service bulletin. ENGINE. This service bulletin advises the technician that the purge pump part number has changed and limited supply.
16-NA-3832024-07-16. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
04-06-04-051I2024-07-16. Service bulletin. FUEL/PROPULSION SYSTEM. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
22-NA-0702024-07-12. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
22-NA-0182024-07-12. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).
18-NA-0992024-07-12. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
18-NA-1252024-06-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information for engine oil life monitor operation calculation.

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