NHTSA Complaints · Active Recalls · California Lemon Law Data
The NHTSA tracks consumer complaints, manufacturer recalls, and safety investigations for every vehicle sold in the United States. These publicly available records are a critical resource for California lemon law cases because they establish patterns of recurring defects.
As of June 2026, the NHTSA has logged 108 complaints against the 2021 Chevrolet Blazer. Each complaint is filed by a vehicle owner or lessee through the NHTSA’s Vehicle Safety Hotline or online portal at SaferCar.gov. You can review all 2021 Chevrolet Blazer complaints directly on the NHTSA complaint database.
The 2021 Chevrolet Blazer has generated 216 NHTSA complaints and has 1 active recall. If your 2021 Chevrolet Blazer has experienced a defect that the dealer has been unable to repair after multiple visits, you may qualify for a full repurchase or replacement under California lemon law. Chevrolet pays all attorney fees when we prevail. You pay nothing.
Brake defects affecting safety may qualify for California’s two-repair threshold under Cal. Civ. Code § 1793.22, which applies to defects likely to cause death or serious bodily injury. The 2021 Chevrolet Blazer has generated 26 NHTSA complaints related to braking, including ABS failures, grinding, reduced stopping power, and warning lights. Owner reports include: “Brake booster failed after 50k miles needing repair. Brake became very still, prolonging the time it takes to stop the vehicle” (NHTSA Complaint #11688584)
Electrical system failures are notoriously difficult to diagnose and repair, which often results in multiple unsuccessful repair attempts — a key element of a lemon law claim. Reported issues for the 2021 Chevrolet Blazer include infotainment malfunctions, battery drain, warning lights, power window failures, and intermittent starting problems. 22 NHTSA complaints have been filed for this category. Owner reports include: “"Steering assist reduced" message was displayed. At the same time the temperature gauge stopped working and after I shut the car off, the motor fan ra…”
Engine and cooling problems are among the most serious defects under California’s Song-Beverly Act. Owners of the 2021 Chevrolet Blazer have reported issues including stalling, overheating, loss of power, rough idling, excessive oil consumption, and check engine lights that return after dealer repairs. With 20 NHTSA complaints on record, this defect pattern is well-documented. Owner reports include: “Coolant smell when parked with engine running. Radiator was replaced under warranty at 16,000 miles Coolant smell again 49,000 miles. “Pressure tested at dealership with following notes: “Found radiator core on driver side seeping/leaking. provided estimate on cost. no repair made during this visit.” Many forums on 2021 Chevrolet Blazer note poor quality in radiators. This would be the 3rd radiator in less than 50,000 miles on the vehicle.” (NHTSA Complaint #11723904)
Fuel and propulsion system defects can cause stalling, fuel leaks, or power loss — all substantial impairments of use and safety. The 2021 Chevrolet Blazer has generated 14 NHTSA complaints for this defect category. Owner reports include: “Driving along vehicle shut down in middle of road replace fuel pump, fuel module control in August 2025. Now both top and bottom fuel hose needs replacing. On Nov 2025 I smelled gas and vehicle shut down” (NHTSA Complaint #11702777)
Powertrain and transmission defects directly impair the vehicle’s core function and are generally considered substantial defects under California lemon law. Owners of the 2021 Chevrolet Blazer have reported harsh shifting, shuddering, slipping, and transmission warning lights. 12 NHTSA complaints have been submitted for this defect category. Owner reports include: “My 2021 Chevy blazer Lt v6, has a service bulletin extending warranty on thermostat malfunction, that also causes the fans to run after the car is off. My vechicle was experiencing this issue, went into my local dealer, they claim thats not my issue, I need a new radiator, that has never leaked, or the car running hot. Beyond that the radiator has a service bulletin, they can fail, do to poor quality from supplier, some were replaced under warranty, some were not. This vechicle has 47000 miles, I should not be responsible for this issue. Thank you [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)” (NHTSA Complaint #11723823)
The following 1 recall has been issued for the 2021 Chevrolet Blazer by the NHTSA or Chevrolet. If your vehicle is affected, the manufacturer is required to provide a free remedy. Check your VIN at NHTSA.gov/recalls.
Component: SEAT BELTS
Defect: See NHTSA database for details.
Risk: If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury.
Remedy: GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began January 29, 2021. Owners may contact GMC customer service at 1-800-462-8785, Cadillac customer service at 1-800-458-8006, or Chevrolet customer service at 1-800-222-1020. GM’s number for this recal
California’s Song-Beverly Consumer Warranty Act (Cal. Civ. Code §§ 1790–1795.8) is one of the strongest lemon laws in the United States. It protects buyers and lessees of new and certified pre-owned vehicles that develop substantial defects the manufacturer cannot repair after a reasonable number of attempts.
Under Cal. Civ. Code § 1793.22, a lemon law presumption is triggered when any of the following apply to your 2021 Chevrolet Blazer:
Once the presumption is triggered, the burden shifts to Chevrolet to prove the vehicle is not a lemon. Under Cal. Civ. Code § 1794(d), Chevrolet must pay your attorney’s fees if you prevail — meaning qualified representation costs you nothing out of pocket.
If your 2021 Chevrolet Blazer qualifies as a lemon under California law, Chevrolet may be legally required to:
Step 1: Document every repair visit. Keep all repair orders, work orders, and dealer invoices. Each visit counts as a repair attempt, even if the dealer says nothing is wrong.
Step 2: Keep returning for repairs. You must give Chevrolet a reasonable opportunity to fix the defect. Visit different authorized Chevrolet dealers if needed and ask for written documentation of each visit.
Step 3: Contact a California lemon law attorney. Once you believe the threshold has been met — 4 attempts for non-safety defects, 2 for safety defects, or 30 days out of service — contact an attorney for a free case evaluation. Under § 1794(d), Chevrolet pays your fees if you win.
Step 4: Send a demand letter. Your attorney will send Chevrolet a formal demand letter. Most California lemon law cases resolve through negotiation without going to trial.
Under Cal. Civ. Code § 1793.22, four or more repair attempts for the same non-safety defect, or two attempts for a safety-related defect, triggers the lemon law presumption. Additionally, 30 or more cumulative days out of service qualifies regardless of the number of repair attempts.
Yes. Under Cal. Civ. Code § 1794(d), Chevrolet is required to pay your reasonable attorney’s fees and court costs if you prevail in a lemon law claim. This means qualified lemon law representation is free to you if your case succeeds.
Yes. A recall is not required to file a lemon law claim. The Song-Beverly Act covers any substantial defect that impairs the use, value, or safety of the vehicle that the manufacturer cannot repair after a reasonable number of attempts. NHTSA complaints support the claim by establishing a pattern, but are not a prerequisite.
California lemon law claims are generally subject to a four-year statute of limitations from the date you discovered or should have discovered the defect. However, you must still be within the manufacturer’s original warranty period when the defect first appears. Contact an attorney promptly to preserve your rights.
If your 2021 Chevrolet Blazer has a recurring defect, California’s Lemon Law may entitle you to a full refund, replacement vehicle, or cash settlement — at no cost to you.
Our attorneys answer the questions we hear most from California vehicle owners — fully updated for 2026.
Get a free case evaluation. Chevrolet pays our fees if you win — you pay nothing upfront.
Check My Refund Amount →