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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: Electrical system are shown. Show all

Bulletins, newest first
24-NA-1432024-12-16. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Software Updates on Ultium Vehicles.
24-NA-1132024-12-16. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.
PIT62932024-12-16. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This Preliminary information communicates if a customer and service tech encounter this issue, verify the switch assembly and continue with repairs.
PIT5962B2024-12-12. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
PIT6235A2024-12-09. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates that a vehicle may have various warning lights on or various symptoms. The technician will find various codes set. The tech is directed to inspect a wiring harness under the cowl for chafing and damage. If damage is found it should be repaired.
PIP6009A2024-12-05. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates the request that engineering it looking to get data from these vehicles before any work is being performed.
PIT6215A2024-12-05. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.
PIT62572024-12-05. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates that a vehicle may have P0534 set. There is a possibility that the circuits may have been swapped for temperature sensors 5 and 6. The technician is instructed to inspect the circuits at sensors 5 and 6 and if they are incorrect to move them to the correct terminals at the Battery Energy Control Module and to label the circuits.
PIT62532024-12-05. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with these concerns that engineering is aware and once a fix is available, this PI will be updated to reflect that.
PIT62482024-12-05. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to GM technicians to not replace any parts at this time if they come across this concern to reset the radio at this time. This PI will be updated for the service fix once available.
24-NA-2392024-12-05. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
PIT62902024-12-04. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This Preliminary information communicates a vehicle may be encountered with a concern of heat blowing cold at times, a whistling noise and P0534. Any or all of these conditions may be noted by a technician or customer. The dealer technician is directed to test the temperature at the condenser check valve, inspect the valve and inspect the line for a possible issue with the opening in the line. A procedure is given to modify the line if needed.
PIE0753E2024-12-04. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering study and analysis.
24-NA-0922024-12-04. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides repair information on a new radio software version to correct a customer concern of Radio Software issues.
23-NA-2172024-12-04. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This service bulletin provides information on Lithium-Ion Battery - TAC Approval and Exchange Program for Cadillac LYRIQ, Chevrolet Blazer EV, Equinox EV and Corvette E-Ray.
24-NA-2292024-12-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
24-NA-1432024-11-21. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Software Updates on Ultium Vehicles.
24-NA-1132024-11-21. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.
24-NA-1082024-11-21. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides a procedure to correct radio software concerns.
24-NA-2082024-11-19. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides service information for dealers/technicians on Radio Staying on for approximately One Minute After Vehicle is Shut Off and Door is Opened.
22-NA-0532024-11-13. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on New Labor Operations for Limited Production Option (LPO) Calibrated Accessories.
24-NA-2092024-11-12. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. A new radio software update, version C157/C158, was released to service vehicles equipped with Infotainment system RPO IOR to correct conditions of radio software related issues.
24-NA-1272024-11-09. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This bulletin provides Information on Infotainment Screen Hot to the Touch.
20-NA-1322024-11-09. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
22-NA-0962024-11-09. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on Customer Education Bulletin for Google Built In Radio.

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