There are 3 stored owner reports matching the brakes leading-label group for the 2003 Lexus GX 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 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)TL* THE CONTACT OWNS A 2003 LEXUS GX470. THE CONTACT STATED THAT THE BRAKE WARNING INDICATOR ILLUMINATED. ALSO, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD WHEN IT WAS DEPRESSED. THE CONTACT ACTIVATED THE HAZARD LIGHTS AND ENGAGED THE EMERGENCY BRAKE WHEN THE FAILURE OCCURRED. THE DEALER (POHANKA HONDA OF FREDERICKSBURG, 60 S GATEWAY DR., FREDERICKSBURG, VA 22406, (540) 735-9100) WAS CALLED AND STATED THAT THE CAUSE OF THE FAILURE COULD BE THE BRAKE MASTER CYLINDER. THE DEALER (POHANKA LEXUS CHANTILLY, 13909 LEE JACKSON MEMORIAL HWY, CHANTILLY, VA 20151, (703) 968-9100) WAS ALSO CONTACTED, BUT HAD NOT DIAGNOSED THE VEHICLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 183,400.
WHILE DRIVING AND AT ANY BRAKING CONDITIONS WHEN DEPRESSING THE BRAKE PEDAL VEHICLE FEELS LIKE SOMEONE IS HITTING THE REAR OF VEHICLE.*AK
WHEN RELEASING THE BRAKE PEDAL, THE VEHICLE MAKES A THUMPING NOISE. AT TIMES IT FEELS LIKE SOMEONE IS TAPPING ME IN THE REAR OF THE VEHICLE. I HAVE BROUGHT THE VEHICLE IN FOR SERVICE 3 TIMES BECAUSE OF THIS ISSUE AND EACH TIME I AM TOLD IT IS A "NORMAL CHARACTERISTICS OF THE VEHICLE." *NLM
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: Aug 30, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.