There are 1 stored owner reports matching the brakes leading-label group for the 2009 Lincoln Navigator in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)WHEN BRAKING WHILE MOVING (AT ANY SPEED), THE BRAKE PEDAL BEGINS BRAKING AT ITS NORMAL PRESSURE POINT AND THEN SINKS TO THE FLOOR WITH REDUCED BRAKING EFFECT. SUNNYVALE LINCOLN HAS CHECKED THE WHOLE SYSTEM FOR LEAKS AND BLED SOME VERY TINY AIR BUBBLES OUT OF THE ABS CONTROL MODULE. THE PROBLEM RETURNED AFTER ABOUT FOUR DAYS. THEY REPLACED THE HCU LINES BECAUSE SOME VERY MINOR "WETNESS" WAS FOUND AT THE CONNECTORS AND BLED THE ABS CONTROL MODULE AGAIN. THE PROBLEM RETURNED AGAIN AFTER ABOUT FOUR DAYS. WE HAVE DONE THREE CYCLES OF THE BLEEDING NOW AND THIS FIXES THE PROBLEM, BUT ONLY FOR FOUR DAYS. SUNNYVALE LINCOLN IS CURRENTLY TRYING TO FURTHER DIAGNOSE THE PROBLEM. THE NAVIGATOR ONLY HAS 32,000 MILES ON IT AND HAS ONLY BEEN SERVICED BY THE DEALER. I AM AFRAID TO DRIVE IT UNTIL THE PROBLEM IS PERMANENTLY RESOLVED. THESE SYMPTOMS SOUND VERY SIMILAR TO THE F-150 BRAKE INVESTIGATION. THE NAVIGATOR USES THE F-150 BRAKE SYSTEM.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.