Chevrolet Blazer TSBs — Technical Service Bulletins by Year
7,681 manufacturer communications are on file with NHTSA for the Chevrolet Blazer — service bulletins, service campaigns, warranty extensions, and software updates, 1990 to 2026. Pick a year for its bulletin list.
A TSB is factory repair guidance, not a recall — the repair is not automatically free. For defects and free repairs, see the Chevrolet Blazer problem rankings and each year's recall list.
Warranty extensions, campaigns & software updates
The communications worth checking your VIN against — unlike ordinary bulletins, these can mean free or reimbursed work if your vehicle qualifies.
General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power…
Model years named: 2022
Certain vehicles listed above may have a condition in which the oil filter was not adequately tightened. Dealers are to check and tighten the oil filter if found to be loose.
Model years named: 2026
General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power…
Model years named: 2022
Improvements to OnStar functionality.
Improvements to OnStar functionality. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Improvements to OnStar functionality. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Certain vehicles listed above, may have a condition that could cause the engine coolant thermostat to open at a lower temperature than intended. If this condition were to occur, the Malfunction Indicator Lamp (Check Engine Light) will illuminate and a diagnostic trouble code…
Model years named: 2021
Certain vehicles may have a condition in which the Front Right Brake Line Fitting is torqued under specification. Dealers are to tighten the Front Right Brake Line Fitting to the specified torque.
Model years named: 2025
Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from…
Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from…
Special Coverage - Certain vehicles may have a condition that could cause the evaporative emissions purge pump to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Dealers are to replace…
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The…
Model years named: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2019, 2020, 2021, 2022, 2023, 2024
Bulletins by model year
| Year | TSBs | Most bulletined areas | |
|---|---|---|---|
| 2026 | 57 | Electrical, Engine | View bulletins |
| 2025 | 173 | Engine, Electrical | View bulletins |
| 2024 | 410 | Electrical, Engine | View bulletins |
| 2023 | 569 | Electrical, Engine | View bulletins |
| 2022 | 726 | Electrical, Engine | View bulletins |
| 2021 | 810 | Engine, Electrical | View bulletins |
| 2020 | 853 | Engine, Electrical | View bulletins |
| 2019 | 847 | Electrical, Engine | View bulletins |
| 2008 | 175 | Engine, Electrical | View bulletins |
| 2007 | 157 | Engine, Electrical | View bulletins |
| 2006 | 131 | Engine, Electrical | View bulletins |
| 2005 | 484 | Electrical, Engine | View bulletins |
| 2004 | 413 | Electrical, Engine | View bulletins |
| 2003 | 408 | Engine, Electrical | View bulletins |
| 2002 | 372 | Electrical, Engine | View bulletins |
| 2001 | 364 | Electrical, Engine | View bulletins |
| 2000 | 326 | Electrical, Engine | View bulletins |
| 1999 | 108 | Electrical, Transmission & drivetrain | View bulletins |
| 1998 | 78 | Electrical, Engine | View bulletins |
| 1997 | 59 | Engine, Electrical | View bulletins |
| 1996 | 49 | Engine, Body & structure | View bulletins |
| 1995 | 51 | Body & structure, Fuel system | View bulletins |
| 1994 | 24 | Transmission & drivetrain, Electrical | View bulletins |
| 1993 | 13 | Transmission & drivetrain, Engine | View bulletins |
| 1992 | 11 | Transmission & drivetrain, Engine | View bulletins |
| 1991 | 7 | Transmission & drivetrain, Suspension | View bulletins |
| 1990 | 6 | Transmission & drivetrain, Suspension | View bulletins |
Questions buyers ask
How many TSBs does the Chevrolet Blazer have?
NHTSA's manufacturer-communications file lists 7,681 technical service bulletins and related communications for the Chevrolet Blazer across the 1990–2026 model years. The most bulletined areas are electrical, engine, transmission & drivetrain.
Are Chevrolet Blazer TSB repairs free?
Not automatically. A TSB tells dealers how to fix a known pattern; you pay unless the vehicle is under warranty or the bulletin is a warranty extension or service campaign that covers your VIN. Recall repairs, by contrast, are always free.
How do I get the full text of a Chevrolet Blazer TSB?
Take the bulletin's document ID to a dealer or to NHTSA's site — this page carries each communication's ID, date, and NHTSA's summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Counts cover communications NHTSA's file names against Chevrolet Blazer model years shown here. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.