PITSTOP - BRAKE CALIPER LEAK INSPECTION - This PITSTOP provides information related to a brake caliper fluid/oil substance found on some Kia vehicles, due to possible excess assembly oil applied during assembly.
full bulletin at NHTSA ↗2010 Kia Forte brakes problems
severe Owners of the 2010 Kia Forte have filed 12 NHTSA complaints about the brakes at roughly $450 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See brakes across all vehicles →
Complaints
12
Recalls
0
Avg fix
$450
| Model year | brakes complaints |
|---|---|
| 2010 Forte (this page) | 12 |
| 2011 Forte | 16 |
| 2012 Forte | 31 |
| 2013 Forte | 24 |
| 2014 Forte | 11 |
1crash
When does it fail?
Of the 12 brakes complaints filed for the 2010 Kia Forte, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
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.
What stands out
No new NHTSA brakes complaint has been filed on this vehicle in over 13 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.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners report a pattern of rear brake caliper seizures occurring between 42,000 and 111,500 miles. The calipers stick in the applied position, generating extreme heat that separates brake pad friction material from the backing plate and ruins rotors. One owner experienced this twice in three years. A dealer performed caliper slide service and fluid replacement after contaminated fluid was discovered, but Kia provided no explanation for why the seizures happened and stated it may not have occurred with higher daily mileage—an answer that contradicts another owner's experience with a daily-driven vehicle.
Owners also report progressive brake pedal failure where the pedal sinks to the floorboard without warning, requiring repeated manipulation to regain braking. One owner lost all brakes while stopping on a downhill grade, resulting in a low-speed collision. A traction control malfunction disabled brake lights on at least one vehicle, creating a rear-end collision hazard. A burning odor persisted after replacement of a melted brake light assembly, valve cover gasket, and belt tensioner, suggesting an undiagnosed electrical or thermal root cause.
One vehicle rolled out of Park while sitting in the driveway; the owner identified a brake switch recall but found the 2010 Forte excluded from the recall year range despite the issue affecting other Kia models.
Same Kia Forte brakes reports on nearby years: 2011 · 2012 · 2013
Failure modes owners describe
Seized/Stuck Rear Calipers
Rear brake calipers seize during operation, causing extreme heat buildup. Brake pads and rotors overheat and separate from the friction material. The caliper sticks in the closed position, continuing to apply brake pressure and generating dangerous temperatures.
When: 42,000 miles (narrative #7); 73,000 miles (narrative #8); 111,500 miles (narrative #8); unspecified (narrative #1)
Symptoms owners cite: Rear brakes get extremely hot during driving; Brake pads stick in anchors; Pads separate and deteriorate from overheating; Vehicle pulls to one side (right/left wheel brakes heating differently); Possible fire risk from sustained high brake temperatures
Repairs/costs cited: Caliper slide service performed; rear pads replaced; brake fluid flushed and system bled (narrative #1). Owners report stuck calipers ruining pads and rotors at 73k and 111.5k miles (narrative #8).
Recalls/TSBs owners mention: Dealer unable to diagnose in narrative #7. Kia offered no explanation in narrative #1; did not know why seizure occurred.
Brake Pedal Loss and Unresponsiveness
Brake pedal progressively loses firmness and travel, eventually sinking to the floorboard with no stopping power. The failure occurs without warning and requires the driver to manipulate the pedal repeatedly to regain braking ability.
When: Unspecified mileage
Symptoms owners cite: Brake pedal travels to floorboard; Pedal unresponsive without manipulation; Failure progresses over time; No warning lights or prior indication
Recalls/TSBs owners mention: Manufacturer notified but no repair attempted or diagnosed.
Brake Fluid Contamination
Brake fluid becomes contaminated, likely from prolonged high temperatures in the brake system. The contamination occurs without visible fluid leaks and indicates the hydraulic system is degraded.
When: Related to seized caliper incident around daily-driven vehicle operation
Symptoms owners cite: Contaminated brake fluid detected during system inspection; Associated with overheating brakes
Repairs/costs cited: Brake fluid flushed and fresh fluid installed as part of caliper slide service (narrative #1).
Recalls/TSBs owners mention: Kia stated brake parts apparently contain no anti-corrosive materials (owner observation, narrative #1).
Traction Control Malfunction Affecting Brake Lights
Traction control system fails to activate and remains stuck in the off position. This failure simultaneously disables the brake lights, creating a safety hazard where following drivers cannot see brake application.
When: Within two years of ownership (approximately 2010-2012)
Symptoms owners cite: Traction control remains off and will not turn on; Brake lights fail to illuminate; Increased risk of rear-end collision
Recalls/TSBs owners mention: Same component is subject to recall on 2010 Sorento and Soul but not on Forte, per owner observation (narrative #5).
Brake Light Assembly Failure and Persistent Burning Odor
Third brake light assembly melts during normal operation. Replacement of the light assembly does not resolve the underlying burning odor, suggesting a broader electrical or thermal issue in the brake circuit or related systems.
When: Approximately 77,000 miles
Symptoms owners cite: Abnormal burning odor while driving and at complete stop; No warning lights illuminated; Third brake light assembly melted
Repairs/costs cited: Third brake light assembly replaced by independent mechanic; failure persisted. Valve cover gasket replaced by dealer; burning odor remained. Belt tensioner replaced by AAA; odor persisted.
Recalls/TSBs owners mention: Manufacturer could not assist; vehicle out of warranty.
Loss of Braking on Downhill Grade
Brakes fail completely when stopping on a downhill grade after normal braking application. Vehicle continues moving slowly uphill after brake application until colliding with another vehicle. Brakes function normally after the incident, suggesting a transient system failure rather than permanent damage.
When: Unknown mileage
Symptoms owners cite: Brakes do not respond after stopping at traffic light on downhill/highway grade; Vehicle drifts forward at low speed (5 mph or less); Vehicle rocks after being placed in Park (intermittent)
Vehicle Movement Out of Park (Possible Brake Locking Issue)
Vehicle rolls out of Park position while parked in driveway. Driver manually applied emergency brake to prevent collision. Owner identified brake switch as subject to recall but vehicle model year not covered by the recall range.
When: Unknown mileage
Symptoms owners cite: Vehicle exits Park and rolls without driver input; Emergency brake required to stop vehicle
Recalls/TSBs owners mention: Brake switch identified as part of a recall, but 2010 Forte not included in recall year range per owner.
Synthesized from 12 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
While driving from my kids pediatrician office. I noticed the traction control stayed off and would not turn on. That affected my brake lights. I noticed that same part is put as a recall for the sorento and soul but not for the forte. If it is the same recall the forte should be included. For the vehicle being only two years old it should be covered as a recall and due to the safety impact that…
Tl* the contact owns a 2010 Kia forte. The contact stated that while driving approximately 30 MPH, the rear brakes seized. The vehicle was taken to the dealer for diagnosis. The technician was unable to diagnose the failure. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 42,000. *tr
Had brakes trouble with your 2010 Kia Forte?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the brakes problem on the 2010 Kia Forte?
It's a meaningful issue. 12 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 12 complaints filed, brakes issues most often appear around 67,365 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.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2010/Kia/Forte.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.