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Service bulletins for the 2023 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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
PIT61012024-01-29. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Preliminary information communicates Engineering is investigating a no audio issue
23-NA-0742024-01-13. Service bulletin. SERVICE BRAKES; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); STEERING; ELECTRICAL SYSTEM. This service bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon (SES), Reduced Power, Service Brake, Reduced Steering and/or Stabilitrak Message Illuminated on DIC, multiple DTCs.
21-NA-1422024-01-13. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES; EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.
PIE07732024-01-04. Service bulletin. ELECTRICAL SYSTEM; SEATS; EQUIPMENT. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to Melted Burn Marks and/or Smoke Smell Coming from the Height Adjuster Motor Under the Front Row Seat.
20-NA-1322023-12-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
23-NA-0212023-11-29. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.
21-NA-1422023-11-29. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC. This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.
21-NA-1352023-11-29. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
23-NA-1892023-11-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.
23-NA-1232023-11-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This service bulletin provides repair information to reprogram the cooling fan to correct a customer concern of a MIL Illuminated.
23-NA-0822023-09-14. Service bulletin. LANE DEPARTURE; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This service bulletin provides a procedure for rear park assist button replacement due to some vehicles that were built with a ride control switch that still contains the rear park assist button on it.
19-NA-1672023-09-13. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of a water leak into interior, and/or various electrical concerns, liftgate actuator noisy or inoperative.
16-NA-2222023-09-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
09-06-04-026X2023-08-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
23-NA-1302023-08-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; VISIBILITY:REARVIEW MIRRORS/DEVICES. This technical bulletin provides repair information to correct a customer concern of the driver side mirror being distorted.
23-NA-1252023-07-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information for dealers/technicians on Over the Air (OTA) and In Market Enhancement (IME) FAQs.
23-NA-1232023-07-25. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This service bulletin provides repair information to reprogram the cooling fan to correct a customer concern of a MIL Illuminated.
23-NA-0552023-07-25. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.
22-NA-0232023-07-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This service bulletin provides repair information to correct a customer concern of Instrument Cluster DIC Displays Programming in Progress Message and Progress Bar.
23-NA-0642023-07-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
23-NA-0422023-07-14. Service bulletin. BACK OVER PREVENTION:SOFTWARE; EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides repair information to update radio software to correct customer concerns of Software related issues.
22-NA-0532023-07-14. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING. This service bulletin provides information for dealers/technicians on New Labor Operations for Limited Production Option (LPO) Calibrated Accessories.
21-NA-0052023-07-14. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS. This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion.
13-08-116-001I2023-07-13. Service bulletin. ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
22-NA-2422023-07-11. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.

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