This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
full bulletin at NHTSA ↗2015 Chevrolet Sonic brakes problems
severe 5 complaints filed with NHTSA · avg repair $450 · see brakes across all vehicles →
When does it fail?
Of the 5 brakes complaints filed for the 2015 Chevrolet Sonic, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
No new NHTSA brakes complaint has been filed on this vehicle in over 8 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering brakes on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
full bulletin at NHTSA ↗This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
full bulletin at NHTSA ↗This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
full bulletin at NHTSA ↗This Preliminary Information communication provides information to the technician about vehicles that had the Brake Pressure Modulator Valve now Diagnostic Trouble Code C0131 is set current. Technician should remove Brake Pressure Modulator Valve assembly and inspect the brake pressure sensor assembly to ensure all shipping material has been removed before installation.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 2 most recent
Brake did not activate when applied to stop vehicle to avoid colliding into garage door while in motion to park car.
The brakes on this vehicle is defective. The ABS brakes do not work correctly and the brake peddle also has issues. The brakes has caused two accidents thus far. The dealership has tried to remedy the situation several times with repairs at no avail. The vehicle brakes failed to work and caused two rear end accidents.
Common questions
How serious is the brakes problem on the 2015 Chevrolet Sonic?
It's a meaningful issue. 5 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $450.
At what mileage does the brakes typically fail?
Based on the 5 complaints filed, brakes issues most often appear around 24,868 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $450 for brakes repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to brakes?
No active recalls currently cover brakes issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.