2023 Chevrolet Blazer Technical Service Bulletins

575 technical service bulletins (TSBs) are on record for the 2023 Chevrolet Blazer. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10231613Jan 4, 2023Steering. This Preliminary information communicates that a vehicle may come to the dealer with a "Service Steering Message" and no codes set that pertain to the steering system. The technician is instructed to look for a P0128 and if it is set to diagnose that code and see if the message will clear.
• 10228912Dec 23, 2022Wheels. This service bulletin provides information on Dealer Installed LPO Wheel Installation and Return Process.
• 10228906Dec 21, 2022Equipment. This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process.
• 10230700Dec 16, 2022Equipment. This Preliminary information communicates vehicles being built without certain options due to a parts shortage.
• 10228891Dec 14, 2022Brakes. This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.
• 10228888Dec 14, 2022Engine cooling. This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
• 10228886Dec 14, 2022Engine cooling. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
• 10228905Dec 13, 2022Engine cooling, Equipment. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the A/C being inoperable.
• 10228863Dec 13, 2022Engine cooling, Transmission and drivetrain. This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
• 10230691Dec 12, 2022Forward collision avoidance. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".
• 10228903Dec 12, 2022Transmission and drivetrain. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to having Loss of Propulsion, Loss of Traction and/or Grinding Type Noise Heard After Loss of Traction and/or Vehicle Towed Due to Half Shaft Disconnection.
• 10228901Dec 12, 2022Electrical system, Equipment. This service bulletin provides repair information to correct a customer concern of Rear View Camera Display Gridlines Dim.
• 10228192Dec 7, 2022Equipment. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
• 10227799Dec 7, 2022Equipment. This warranty bulletin provides information on Customer Concern Not Duplicated (CCND) Labor Operation Numbers.
• 10230686Dec 6, 2022Electrical system. This Preliminary information communicates that a vehicle may be encountered with a message "service park assist". Upon further inspection it will be found that the vehicle was built with RPO 060 - park assist delete, the vehicle is not equipped with park assist. The technician is advised that updated calibrations will be available on 12/12/2023 and is given instructions for programming the Instrument cluster.
• 10228226Dec 6, 2022Brakes. This service bulletin provides information to dealership personnel that after performing a brake inspection, brake pad replacement, or any other repair that requires the caliper piston to be reseated may be causing DTC C05B0 to falsely set for eBoost applications.
• 10227795Dec 1, 2022Engine cooling. This informational bulletin advises the tech to validate if oil is leaking into the cooling system and to test and verify were to leak is coming from before replacing all the parts that wouldn't apply to the repair.
• 10227402Nov 30, 2022Electrical system. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
• 10227401Nov 30, 2022Equipment, Electrical system. This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or USB Receptacle Inoperative.
• 10227674Nov 29, 2022Wheels, Tires. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
• 10227673Nov 29, 2022Equipment. This Preliminary information communicates vehicles being built without certain options due to a parts shortage.
• 10227382Nov 21, 2022Electrical system, Equipment. This informational bulletin provides information on Information on Order/Content Change: Wireless Phone Charging.
• 10227291Nov 18, 2022Electrical system, Equipment. This service bulletin provides repair information to correct a customer concern of Wireless Charging Intermittent When Using Samsung Phones at Offset Positions.
• 10227241Nov 18, 2022Transmission and drivetrain, Engine cooling. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
• 10227295Nov 15, 2022Forward collision avoidance, Electrical system, Equipment. This engineering information (EI) s requesting to gather information from technicians, perform the check list provided and contact the engineer listed in regards to a Service Front Camera message on the driver information center (DIC), having the loss of the front camera features and/or its functionality.
• 10227664Nov 14, 2022Steering, Lane departure. This Preliminary Information communication provides information to the technician with additional information on the functionality of Lane Keep Assist. Starting with 2016 model year Lane Keep Assist Regular Production Option Code (UHX) replaced Lane Departure Warning Regular Production Option Code (UFL). Lane Keep Assist is designed to assist the driver in keeping the vehicle from drifting out of a driving lane…
• 10227663Nov 10, 2022Fuel system, Other or unknown. This Preliminary information communicates a possible issue with the active fuel management rockers causing a misfire and the correction for this concern.
• 10227056Nov 9, 2022Engine cooling. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
• 10225732Oct 28, 2022Brakes, Wheels. This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking.
• 10225718Oct 26, 2022Electrical system, Engine cooling. This service bulletin provides repair information to correct a customer concern of MAF Sensor Calibration Update - DTCs P227C and P10BC Set After ECM Replacement.
• 10225661Oct 20, 2022Electrical system. This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155.
• 10225658Oct 19, 2022Transmission and drivetrain. This engineering information (EI) closure ends the need for gathering information from the field in regards to Service AWD Lamp illuminated on driver information center (DIC).
• 10225615Oct 19, 2022Electrical system. This service bulletin provides information on Module Harvesting.
• 10226379Oct 17, 2022Back-over prevention (rear camera). This Preliminary information communicates that a customer may notice that the gridlines on the backup camera are very dim. They may mention that this occurred after an OTA update. The dealer technician is advised to perform no repairs. The technician is advised that engineering is looking into a resolution and the resolution will be communicated through this PI or a bulletin when it becomes available.
• 10226368Oct 11, 2022Transmission and drivetrain. This Preliminary information communicates possible transmission fluid leak underneath the vehicle that may be root cause as a trans not being cleaned after production.
• 10226367Oct 10, 2022Transmission and drivetrain. This Preliminary information communicates that a vehicle may come into the dealer with various concerns which may include a service engine light or various warning messages on the DIC. The technician is instructed to inspect a wiring harness for chaffing on a bracket which is located beneath the battery tray, at a transmission stud and at the transmission oil cooler line bracket.
• 10224820Oct 7, 2022Equipment. This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
• 10224831Oct 4, 2022Body and structure. This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.
• 10222839Sep 28, 2022Equipment. This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S. and Canada.
• 10222841Sep 27, 2022Electrical system. This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
• 10222777Sep 16, 2022Transmission and drivetrain, Brakes, Engine cooling, Suspension, Steering. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
• 10222776Sep 16, 2022Electrical 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.
• 10222771Sep 16, 2022Engine cooling. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
• 10222770Sep 16, 2022Transmission and drivetrain, Engine cooling. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
• 10222766Sep 16, 2022Engine cooling, Fuel 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.
• 10222796Sep 14, 2022Engine cooling. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
• 10222772Sep 14, 2022Engine cooling. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10222765Sep 14, 2022Fuel system, Engine cooling. This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.
• 10222733Sep 14, 2022Equipment. This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
• 10222739Sep 13, 2022Engine cooling, Fuel system. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

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