2020 Chevrolet Blazer Technical Service Bulletins

854 technical service bulletins (TSBs) are on record for the 2020 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.

• 10181725Sep 24, 2020Equipment, Engine. This preliminary informational (PI) provides diagnosis and repair information regarding bearing damage or when an engine will not rotate.
• 10181688Sep 22, 2020Brakes. This technical bulletin provides repair information to correct a customer concern of Loss of Brake Assist, Various Messages Displayed in Driver Information Center (DIC), Brake Pedal Travel and Apply May Feel Different, One or More of the Following DTCs May be Set: P0606 with C0021, C05D2, C0595, C2A3B, C0024, C053D, P25A2.
• 10181722Sep 21, 2020Equipment, Electrical system. This technical bulletin provides repair information to correct a customer concern of Radio Software Version U150 Update.
• 10181157Sep 21, 2020Equipment. This Preliminary information communicates information on radio software anamolies and future radio software updates to correct the concern.
• 10181156Sep 21, 2020Equipment. This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support.
• 10181695Sep 17, 2020Equipment, Electrical system. This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.
• 10181682Sep 15, 2020Body and structure. This technical bulletin provides repair information to correct a customer concern of hearing a ticking noise coming from upper B-pillar area.
• 10181678Sep 11, 2020Engine cooling. This informational bulletin provides information on the new oil filter UPF63R to be used on the HFV6 Engines.
• 10181694Sep 10, 2020Engine, Electrical system. This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Message at Start Up or Shortly after Start Up.
• 10181690Sep 10, 2020Electrical system, Equipment. This technical bulletin provides repair information to correct a customer concern of seeing SD Card Removed error message displayed in the Driver Information Center (DIC).
• 10181670Sep 2, 2020Engine cooling. This Bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.
• 10181660Sep 2, 2020Transmission and drivetrain. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
• 10180312Aug 18, 2020Transmission and drivetrain. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only).
• 10180697Aug 14, 2020Equipment. This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
• 10180317Aug 14, 2020Tires. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10180315Aug 12, 2020Electrical system. This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.
• 10180296Aug 7, 2020Brakes, 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.
• 10180703Aug 5, 2020Engine, 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 Check Engine Light being illuminated.
• 10180299Aug 5, 2020Equipment. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
• 10179538Jul 30, 2020Electrical system. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the malfunction indicator lamp (MIL) illuminated.
• 10178979Jul 29, 2020Body and structure, Suspension. THis technical bulletin provides a procedure to apply tape to correct the condition of Front End Noise While Driving at Highway Speeds.
• 10178949Jul 28, 2020Transmission and drivetrain, Engine. This 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.
• 10178388Jul 28, 2020Transmission and drivetrain. This Preliminary information communicates that a possible trans fluid leak found may only be residual fluid that was left during the assembly process with no repairs needed if no dye is detected after cleaning and re-evaluation.
• 10178950Jul 21, 2020Wheels, Equipment. This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking.
• 10178372Jul 15, 2020Transmission and drivetrain. This Preliminary information communicates to perform a transmission fluid drain and fill to correct a TCC shudder concern.
• 10179408Jul 10, 2020Body and structure, Equipment. This bulletin provides information to dealers regarding transportation damage repair claim submission requirements.
• 10178366Jul 9, 2020Electrical system, Equipment. This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support.
• 10178363Jul 7, 2020Engine, Equipment. This Preliminary information communicates a possible noise from the water pump causing a DTC and the diagnostics for the repair.
• 10178361Jul 2, 2020Electrical system, Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon and may also have an oil or coolant leak. Technician may find coolant or oil in a spark plug tube. If the Spark Plug Tube is leaking and it is determined that the oil or coolant is not coming from a leak above the spark plug then replace the cylinder Head, spark plug and coil.
• 10179532Jul 1, 2020Equipment. This engineering information (EI) ends the needs for information from the field regarding SD Code messages displayed on the Radio Screen and/or Instrument Cluster - Navigation System Malfunction.
• 10178286Jun 26, 2020Transmission and drivetrain. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only).
• 10178346Jun 25, 2020Electrical system. This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
• 10178282Jun 25, 2020Electrical system. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
• 10178288Jun 23, 2020Transmission and drivetrain. 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.
• 10178338Jun 22, 2020Body and structure. This Preliminary information communicates a work around when only 11 digit PUN (Part Unique Number) is seen on Service Solenoid Body Assembly.
• 10178335Jun 18, 2020Equipment. This Preliminary information communicates information on radio software anamolies and future radio software updates to correct the concern.
• 10178284Jun 18, 2020Equipment. This technical bulletin provides repair information to correct a customer concern of seeing SD Card Removed error message displayed in the Driver Information Center (DIC).
• 10178332Jun 17, 2020Equipment. This Preliminary information communicates that the glove will not open when the button is pressed and how to repair.
• 10178293Jun 15, 2020Equipment. This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
• 10177364Jun 15, 2020Equipment, Electrical system, Brakes. Customer Satisfaction Program - Certain vehicles, equipped with 4 Cyl gas engines, may have incorrect instructions in the owner?s manual for Dinghy and Dolly Towing. Instructions should include disconnecting the negative battery cable when towing their vehicle.
• 10178261Jun 12, 2020Electrical system, Equipment. This Technical bulletin provides service procedure information for dealers/technicians on Radio Software Version V135116 Over-the-Air Update.
• 10178295Jun 10, 2020Engine cooling. This engineering information (EI) closure ends the need for information from technicians/field in regards to engine oil found under their vehicle.
• 10178257Jun 4, 2020Tires. This warranty administration bulletin provide policy information on tires are not meeting tread depth expectations, or wearing out (reaching 2/32)) too quickly.
• 10178303Jun 2, 2020Electrical system, Seats. This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw.
• 10178291Jun 2, 2020Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10178302Jun 1, 2020Engine cooling. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses. Also updated to include ALL HFV6…
• 10178266Jun 1, 2020Electrical system, Engine, Brakes. This technical bulletin provides repair information to correct a customer concern of the Service Engine Soon Lamp illuminated and/or Service Power Brake Assist message displayed, with DTCs P0557 or P0558 Stored.
• 10176628May 29, 2020Brakes. This technical bulletin provides repair information to correct a customer concern of Loss of Brake Assist, Various Messages Displayed in DIC, Brake Pedal Travel and Apply May Feel Different, DTC C0024 Set.
• 10176626May 29, 2020Brakes. This technical bulletin provides repair information to correct a customer concern of Loss of Brake Assist, Various Messages Displayed in DIC, Brake Pedal Travel and Apply May Feel Different, DTC C0024 Set.
• 10176616May 29, 2020Equipment, Electrical system. This technical bulletin provides a procedure for replacing the body plugs due to water leaking through the body plug above the connector X500 causing the connector to be corroded.

← All problems reported for the 2020 Chevrolet Blazer