SOME 2008-2017 FORD/MERCURY/LINCOLN VEHICLES EQUIPPED WITH SYNC MAY GENERATE A VHR THAT IDENTIFIES A CONCERN WITH THE BRAKES AND SUSPENSION CATEGORY INDICATING SERVICE IS REQUIRED DUE TO A BRAKE SYSTEM WARNING LAMP BEING ILLUMINATED. IF THE PARK BRAKE WAS APPLIED WHEN THE VHR WAS GATHERING DATA FROM THE MAJOR VEHICLE SYSTEMS, THE BRAKES AND SUSPENSION MESSAGE WILL BE REPORTED AS THE VHR LOOKS FOR ANY WARNING LAMPS ILLUMINATED IN THE INSTRUMENT CLUSTER. RERUN THE VHR WITH THE ENGINE ON AND VEHICLE IN PARK, AND ENSURE THE PARK BRAKE IS DISENGAGED. IF THE SYNC VHR IS STILL REPORTING A CONCERN TO THE CUSTOMERS SYNC OWNERS ACCOUNT, REFER TO THE APPROPRIATE WORKSHOP MANUAL SECTION FOR DIAGNOSIS BY
full bulletin at NHTSA ↗2009 Lincoln MKX brakes problems
moderate 10 complaints filed with NHTSA · avg repair $450 · see brakes across all vehicles →
Complaints
10
Recalls
0
Avg fix
$450
When does it fail?
Of the 10 brakes complaints filed for the 2009 Lincoln MKX, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 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 6 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.
SOME 2008-2017 FORD/MERCURY/LINCOLN VEHICLES EQUIPPED WITH SYNC MAY GENERATE A VHR THAT IDENTIFIES A CONCERN WITH THE BRAKES AND SUSPENSION CATEGORY INDICATING SERVICE IS REQUIRED DUE TO A BRAKE SYSTEM WARNING LAMP BEING ILLUMINATED. IF THE PARK BRAKE WAS APPLIED WHEN THE VHR WAS GATHERING DATA FROM THE MAJOR VEHICLE SYSTEMS, THE BRAKES AND SUSPENSION MESSAGE WILL BE REPORTED AS THE VHR LOOKS FOR ANY WARNING LAMPS ILLUMINATED IN THE INSTRUMENT CLUSTER. RERUN THE VHR WITH THE ENGINE ON AND VEHICLE IN PARK, AND ENSURE THE PARK BRAKE IS DISENGAGED. IF THE SYNC VHR IS STILL REPORTING A CONCERN TO THE CUSTOMERS SYNC OWNERS ACCOUNT, REFER TO THE APPROPRIATE WORKSHOP MANUAL SECTION FOR DIAGNOSIS BY
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2009 MKX vehicles describe brake failures across multiple system components. The most commonly cited issue is brake booster degradation—owners report stiff, hard-to-press pedals; spongy, unresponsive braking; and hissing or squealing noises during brake application. One owner documented the problem worsening over time from September 2015 until November 2015 repair, and repair costs ran $700–$850 for booster replacement. Notably, Lincoln Recall 13N02 addresses the same leaking brake booster failure but only covers 2010–2013 models; two 2009 owners state the recall should extend to their model year.
Hydraulic Control Unit (HCU) failures also appear in the complaint set—owners report the vehicle failing to stop immediately, requiring repeated brake pedal pumping to decelerate, with one incident occurring at 162,000 miles. ABS system faults are reported as well, with the ABS warning light illuminating and the system disabling during braking; one owner cited a Forbes report of widespread ABS complaints across 2006–2012 Lincoln models.
One owner had front brake pads and rotors replaced seven times at a dealer yet the abnormal rumble persisted, suggesting the root cause lies upstream—possibly in the control unit or booster. Ford has issued repairs under warranty for some VINs but denied coverage for others on identical failures.
Same Lincoln MKX brakes reports on nearby years: 2007 · 2008 · 2010 · 2011 · 2012
Failure modes owners describe
Brake booster failure
Brake booster develops internal leaks or vacuum seal degradation, reducing braking effectiveness and creating noise during brake application.
When: Appears across model year range; one owner reported onset in September 2015
Symptoms owners cite: Stiff, hard-to-depress brake pedal; Spongy, unresponsive brakes; Hissing or squealing noise when braking; Hissing sound like released air; Brakes feel less responsive over time; Vehicle unsafe to stop
Repairs/costs cited: Replacement required; costs cited: $700–$850. One owner reports booster replacement resolved the issue.
Recalls/TSBs owners mention: Lincoln Recall 13N02 covers leaking brake booster but only applies to 2010–2013 models; owners report 2009 models exhibit the same failure and should be included. Ford covered the issue under warranty for some VINs but not others.
Hydraulic Control Unit (HCU) failure
HCU deteriorates or fails, preventing proper brake pressure distribution and causing loss of stopping power.
When: Reported at approximately 162,000 miles in one case
Symptoms owners cite: Vehicle fails to stop immediately when brake pedal is depressed; No warning light illuminated; Requires repeated pedal pumping to achieve deceleration; Intermittent loss of braking responsiveness; Intermittent grinding when brakes applied
Repairs/costs cited: Replacement required. One owner reported part on backorder with 3+ week wait. Owners report multiple replacements of other components did not resolve the underlying control unit failure.
Recalls/TSBs owners mention: No specific recalls or TSBs mentioned for HCU failure. One owner noted the part was unavailable and on backorder.
ABS system failure
Anti-lock brake system module or related components fail, disabling ABS functionality during braking.
When: Timing not specified in narratives
Symptoms owners cite: ABS warning light illuminates on dashboard; ABS function disables during braking; Multiple near rear-end collisions reported due to ABS failure; Failure occurs while operating vehicle with passengers
Repairs/costs cited: ABS module replacement required. One owner reported part on backorder with 3+ week wait.
Recalls/TSBs owners mention: No recall or TSB mentioned. Owner cites Forbes report from April 2018 regarding widespread ABS failures on 2006–2012 Lincoln MKZ sedans and suspects MKX crossovers are affected.
Front brake pad and rotor wear
Front brakes exhibit excessive wear and unusual noise despite multiple component replacements, suggesting underlying control or pressure distribution issue.
When: Failure mileage approximately 10,000; current mileage 17,000
Symptoms owners cite: Abnormal rumble from front brakes when engaged; Excessive wear of brake pads and rotors requiring replacement twice in two years
Repairs/costs cited: Brake pads and rotors replaced seven times at authorized dealer; failure persisted despite repeated replacements.
Recalls/TSBs owners mention: No recalls or TSBs mentioned. Manufacturer not notified.
Synthesized from 10 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
I hear a hissing noise when depressing the brake pedal and the brakes feel spongy and not very responsive. Garage have diagnosed a leaking brake booster. Lincol recall 13n02 exactly fits this fault but is only being applied to 2010 - 2013 models, mine is 2009. This recall needs to be extended to cover 2009 models too.
I have to change the breaks & rotors twice in 2 years. My mechanic says it is the 'break booster'. He stated that their might be a recall. The vehicle is having issues stopping. I am afraid the will go out and cause an accident. The breaks make a released air sound and it is hard to make a complete stop. So I stopped driving it.
Car frequently failed to stop timely when brakes were pressed. A HYDRAULIC CONTROL UNIT was advised and BRAKE BOOSTER to be installed.
Had brakes trouble with your 2009 Lincoln MKX?
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 2009 Lincoln MKX?
It's a documented issue but not catastrophic. 10 complaints have been filed. Repairs average $450 and most owners catch it before it causes a breakdown.
At what mileage does the brakes typically fail?
Based on the 10 complaints filed, brakes issues most often appear around 92,071 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/2009/Lincoln/MKX.
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.