Chevrolet Blazer reliability and problems by year
Owners have filed 719 complaints about the Chevrolet Blazer with NHTSA since 2019, most often about electrical system and transmission and drivetrain. Chevrolet has filed 3 warranty extensions and 51 service campaigns for it, and there are 9 safety recalls on file.
From NHTSA's public data files, downloaded 2026-10-10.
How reliable is the Chevrolet Blazer? What NHTSA's records show
We don't give the Blazer a reliability score. NHTSA publishes complaint counts but no sales figures, so complaints can't be turned into a rate or compared between models. Here is what's on file for model years 2019 on.
- Owner complaints
- 719
- Filed with NHTSA, all model years
- Warranty extensions
- 3
- Filed by Chevrolet
- Service campaigns
- 51
- Filed by Chevrolet
- Safety recalls
- 9
- Each covers part of the model
Every model year compared
Complaints rise with how many were sold and how long they've been on the road, so a newer or rarer year will show fewer. Compare years of the Blazer with each other.
| Year | Complaints | Most named | Recalls | Warranty / campaigns |
|---|---|---|---|---|
| 2026 | 1 | Automatic emergency braking and collision warning (100%) | 0 | 1 |
| 2025 | 31 | Other or unspecified (29%) | 1 | 6 |
| 2024 | 50 | Automatic emergency braking and collision warning (22%) | 1 | 15 |
| 2023 | 43 | Engine (28%) | 2 | 7 |
| 2022 | 51 | Electrical system (33%) | 1 | 34 |
| 2021 | 136 | Engine (31%) | 1 | 7 |
| 2020 | 221 | Electrical system (34%) | 3 | 7 |
| 2019 | 186 | Transmission and drivetrain (34%) | 2 | 6 |
Look up one model year, or a VIN
See the complaints, recalls and warranty extensions for a single Blazer model year, with the typical mileage when owners reported each problem.
Acknowledged by Chevrolet
Warranty extensions and service campaigns Chevrolet filed with NHTSA for the Blazer, in its own words. A warranty extension means Chevrolet pays for the repair beyond the normal warranty.
- Warranty extensionJun 2024· Engine· model years 2021
Special Coverage. Certain vehicles, equipped with a 2.0 gasoline engine (RPO LSY), may have a condition that could cause the evaporative emissions purge pump to fail.
- Warranty extensionMay 2024· Body and structure· model years 2019–2024
This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
- Warranty extensionJul 2023· Engine and cooling· model years 2020
Special Coverage - Certain vehicles may have a condition that could cause the evaporative emissions purge pump to fail.
- Service campaignSep 2026· Engine· model years 2024–2025
Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to cut the thermal break tabs on the radiator.
- Service campaignSep 2026· Fuel and propulsion· model years 2022
General Motors has decided to conduct a Voluntary Emission Recall.
- Service campaignSep 2026· Engine· model years 2024–2025
Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to cut the thermal break tabs on the radiator.
- Service campaignSep 2026· Engine· model years 2024–2025
Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to cut the thermal break tabs on the radiator.
- Service campaignAug 2026· Fuel and propulsion· model years 2022
General Motors has decided to conduct a Voluntary Emission Recall.
- Service campaignAug 2026· Engine· model years 2026
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.
- Service campaignJul 2026· Fuel and propulsion· model years 2022
General Motors has decided to conduct a Voluntary Emission Recall.
- Service campaignOct 2025· Engine· model years 2021
Certain vehicles listed above, may have a condition that could cause the engine coolant thermostat to open at a lower temperature than intended.
- Service campaignAug 2025· Brakes· model years 2025
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.
- Service campaignJun 2025· Other or unspecified· model years 2019–2025
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.
- Service campaignJun 2025· Other or unspecified· model years 2019–2025
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.
- Service campaignJan 2025· Other or unspecified· model years 2022–2023
Special Coverage - Certain vehicles may have a condition that could cause the evaporative emissions purge pump to fail.
- Service campaignAug 2024· Electrical system· model years 2019–2024
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles.
- Service campaignAug 2024· Brakes· model years 2024
Customer Satisfaction Program - certain vehicles may have a condition of a potential crack in the anchor bracket. Dealers are to replace both front caliper brackets.
- Service campaignJul 2024· Electrical system· model years 2024
Vehicles may have a condition in which the clutch backing plate retaining ring and/or the clutch piston retaining ring inside the transmission are out of specification. Dealers are to overhaul the clutch piston housing.
- Service campaignJun 2024· Other or unspecified· model years 2024
Certain vehicles may have a condition in which the fasteners on the driver’s side Outside Rearview mirror are incorrectly torqued. Dealers will fasten the driver’s OSRV mirror to the design torque specification.
- Service campaignJun 2024· Other or unspecified· model years 2024
Service Update - certain vehicles may have a condition in which the clutch backing plate retaining ring and/or the clutch piston retaining ring inside the transmission are out of specification. Dealers are to replace the clutch piston housing.
- Service campaignJun 2024· Other or unspecified· model years 2024
Service Update - Certain vehicles may have a condition in which the clutch backing plate retaining ring and/or the clutch piston retaining ring inside the transmission are out of specification. Dealers are to replace the clutch piston housing.
- Service campaignMay 2024· Electrical system· model years 2024
Customer Satisfaction Program - certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
- Service campaignMay 2024· Fuel and propulsion· model years 2023–2024
Customer Satisfaction Program - Various vehicle makes and models listed may have a condition in which the transmission case leaks fluid due to porosity around a mount bolt hole. Dealers will replace the transmission case.
- Service campaignMay 2024· Fuel and propulsion· model years 2023–2024
Customer Satisfaction Program - Various vehicle makes and models listed may have a condition in which the transmission case leaks fluid due to porosity around a mount bolt hole. Dealers will replace the transmission case.
- Service campaignDec 2023· Steering· model years 2022
Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain vehicles listed above, built beginning November 17, 2021.
- Service campaignSep 2023· Steering· model years 2022
Customer Satisfaction Program. Remaining CT4 and CT5 VINs released to open.
- Service campaignSep 2023· Electrical system· model years 2022
Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 2022 and 2023 model year vehicles, built beginning December 2, 2021.
- Service campaignAug 2023· Steering· model years 2022
Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain 2022-2023 model year vehicles listed above, built beginning November 17, 2021.
- Service campaignAug 2023· Electrical system· model years 2022
Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain vehicles, built beginning December 2, 2021.
- Service campaignJul 2023· Electrical system· model years 2022
Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain vehicles listed, built beginning December 2, 2021.
What owners report most
The parts of the car owners named in their complaints, across every Blazer model year. Unverified, and not a failure rate.
- Electrical system214 (30%)
- Transmission and drivetrain186 (26%)
- Engine186 (26%)
- Other or unspecified158 (22%)
- Steering98 (14%)
- Brakes73 (10%)
- Automatic emergency braking and collision warning37 (5%)
- Fuel and propulsion31 (4%)
Safety recalls
9 recalls cover at least one Blazer model year. Each covers a range of VINs, not every car. Check one car at nhtsa.gov/recalls.
The door strikers were not properly heat-treated, which can cause them to break.
The door strikers may fracture, resulting in the door opening unexpectedly.
The transmission may have been built with an incorrect sun gear, which can result in the driver-side half-shaft disengaging from the transmission.
The left-side half-shaft assemblies may be missing a retaining ring.
The driver's seat cushion frame may have an improper weld in the power tilt-adjustment mechanism.
The affected tires were cured for too long during production.
Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.
The start/stop accumulator endcap may have missing bolts.
The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
NHTSA investigations
Defect investigations NHTSA opened. Many close without a recall.
- EA26006Engineering analysis· opened Aug 2026, still open· Brakes· model years 2024
Electronic Brake Module Component Failure
NHTSA's own page for the 2026 Chevrolet Blazer has the complaint text and every document.
Common questions
Is the Chevrolet Blazer reliable?
We don't score reliability: NHTSA publishes complaint counts but no sales figures, so complaints can't be turned into a rate or compared between models. What's on file for model years 2019 on: 719 owner complaints, 3 warranty extensions and 51 service campaigns Chevrolet filed, and 9 safety recalls. The model years with the most complaints are 2020 (221), 2019 (186), 2021 (136). Whether a known problem was fixed on one car is what its service records show.
What are the most common problems with the Chevrolet Blazer?
Across every model year since 2019, owners' complaints to NHTSA most often name electrical system (30%), transmission and drivetrain (26%), engine (26%). Chevrolet has filed 3 warranty extensions covering the Blazer, listed on this page.
Which Blazer model years have the most complaints?
2020 (221), 2019 (186), 2021 (136). Complaint counts rise with how many were sold and how long they've been on the road, so compare years of the Blazer with each other rather than with other models.
Has Chevrolet extended the warranty on the Blazer?
Yes: engine (model years 2021); body and structure (model years 2019–2024); engine and cooling (model years 2020). A dealer does a covered repair for free within the extended time or mileage.
How do I check recalls on a Blazer?
Enter the car's 17-character VIN at nhtsa.gov/recalls. That answers for one vehicle; the 9 recalls listed here are for the model, and each covers only part of it.