Safety Recall 19S54 – Anti-Lock Brake System Hydraulic Control Unit Valve Function – 2006-2010 Ford Lincoln & Mercury

December 18, 2019 NHTSA CAMPAIGN NUMBER: 19V904000

ABS Valve May Remain Open after ABS Event

If the valves do not properly close, additional brake pedal travel may be required to stop the vehicle, increasing the risk of a crash.

 

NHTSA Campaign Number: 19V904

Manufacturer Ford Motor Company

Components SERVICE BRAKES, HYDRAULIC

Potential Number of Units Affected 600,166

 

Summary

Ford Motor Company (Ford) is recalling certain 2006-2010 Ford Fusion, Mercury Milan, Lincoln Zephyr and MKZ vehicles. The valves within the ABS Hydraulic Control Units (HCU) may react with brake fluids containing specific corrosion preventative additives. This reaction may cause the valves to not close properly.

 

Remedy

Ford will notify owners, and dealers will flush the brake system with DOT 4 fluid and install a new brake fluid reservoir cap. In addition, the HCU will be tested to detect a possible stuck valve condition, replacing the HCU as necessary. All services will be performed free of charge. Owners will be notified of the safety risk with an interim letter on January 13, 2020. A second notice will be sent once parts are available, expected to be late in the first quarter of 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford’s number for this recall is 19S54.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if you Vehicle has a Recall



20 Affected Products

Vehicles

MAKE MODEL YEAR
FORD FUSION 2006-2010
LINCOLN MKZ 2006-2010
LINCOLN ZEPHYR 2006-2010
MERCURY MILAN 2006-2010

3 Associated Documents

Defect Notice 573 Report

RCLRPT-19V904-2085.PDF 216.003KB

Download (PDF, 211KB)


Chronology

RMISC-19V904-0442.pdf 63.197KB

Download (PDF, 62KB)


Recall Acknowledgement

RCAK-19V904-3680.pdf 244.912KB

Download (PDF, 239KB)


Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=19V904&docType=RCL



 


1 Associated Investigation

Extended Braking Distance
NHTSA ID: EA18002
Dated opened: April 18, 2018

On December 20, 2016, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE) 16-017 to investigate reports of braking concerns in model year 2007 through 2009 Ford Fusion and Mercury Milan vehicles. Complainants report that after an ABS braking event (caused by braking on a slippery or uneven surface) the brake pedal moved towards the floor and the distance in which the vehicle stopped increased beyond what was expected by the driver. The cause of the problem appears to be the Antilock Braking System (ABS) Hydraulic Control Unit (HCU), a component manufactured for Ford by Continental Automotive Systems. Hydraulic control valves within the HCU can experience corrosion and become stuck. In some cases, braking returns to normal when the valve(s) subsequently become unstuck. The intermittent condition proves difficult to diagnose and complainants report having several brake system components replaced only to have the condition return.

ODI has identified 544 reports submitted to the agency that relate to this issue in model year 2006-2012 Ford Fusion/MKZ and MY 2006-2011 Mercury Milan, the subject vehicles. Complainants report an increase in pedal travel which in some cases resulted in going past expected stopping points or having to steer to avoid contacting another vehicle; twenty six report a crash with 3 injuries alleged. The Ford reports shown above, which are from PE16-017 and involved the scope discussed above, were similar in content and identified 7 crashes without injury.

During PE16-017, ODI was able to recover HCUs from some complaint vehicles, including some from the reported crashes. The recovered HCUs were sent to NHTSA’s Vehicle Research and Test Center (VRTC) in East Liberty, Ohio for evaluation. VRTC was able to confirm stuck valves and corrosion of the zinc coated control valves, and it’s testing indicates that HCU failures cause increases in pedal travel that may affect braking distance. According to Ford, newer version HCUs have a different coating on the affected valves that do not currently appear to be experiencing corrosion.

In it’s response to ODI’s information request letter, Ford described analysis of two failed HCUs removed from complainant vehicles. In both cases, a gelatinous material found inside the HCU prevented control valves from properly returning to the closed position after actuation. Ford found that an interaction between the valve coating and brake fluid was the likely source of the gelatinous material. It acknowledged that stuck valves can result in increased pedal travel but maintains the affected brake circuit will develop pressure and respond if the brake pedal is pressed sufficiently. While it has not identified an unreasonable risk to safety due to this issue, Ford states that it continues to investigate the possible causal and contributory factors including additional engineering evaluations and testing.

An Engineering Analysis has been opened to assess the scope, frequency, and safety-related consequence of the alleged defect. Based on information received during PE16-017, the scope of the investigation has been increased to include another model, the Lincoln MKZ, and to expand the model years of the subject vehicles.


 

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Last update on 2020-04-09 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2020-04-09 / Affiliate links / Images from Amazon Product Advertising API

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