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Service bulletins for the 2024 Chevrolet Blazer

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.

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

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Only bulletins with component: Software are shown. Show all

Bulletins, newest first
23-NA-2222024-04-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This service bulletin provides repair information to correct a customer concern of Radio Software issues and provide software (Version W26E-172.4.2-M169-SQBR4-123.4) Updates for IVD.
20-NA-1322024-04-05. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIP5957A2024-03-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates to the dealer of a possible issue with the vehicle is that the code was set in error and will need a reset procedure performed to verify. This PI outlines the path the dealer is to take to verify that the vehicle can be repaired with this procedure to prevent unnecessary parts replacement and time in service.
PIT61252024-03-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates a technician may find U166A set after a programming event. The tech is instructed to disregard this code. It will have no effect on the vehicle and will be removed in a future software update.
PIE0775B2024-03-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; EQUIPMENT. This Engineering Information (EI) is recommending that GM dealers check and update each module in the vehicle and bring them up to the latest software level.
N242436241-012024-03-15. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Customer Satisfaction Program - certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
N2424362402024-03-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Customer Satisfaction Program - Certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
N2424362402024-03-09. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Customer Satisfaction Program - certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
N2324345902023-12-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Stop Delivery Order: Effective immediately, we have elected to pause the delivery to customers of certain 2024 Chevrolet Blazer EV vehicles which are in the attached VIN file and in new vehicle inventory or in transit. We are issuing this order because we have become aware that a limited number of owners have experienced certain software quality issues. We will provide further instructions as soon as possible.

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