{"source":"nhtsa","country":"us","campaign":"93V205000","date":"1993-12-07","owner_notified":"1994-01-03","manufacturer":"PORSCHE CARS N.A. INC.","component":"SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS","summary":"THE HYDRAULIC BRAKE PRESSURE REDUCTION VALVE CAUSES THE RATE OF HYDRAULIC PRESSURE REDUCTION TO SLOW DOWN, WHICH MAY RESULT IN THE REAR WHEELS LOCKING-UP EVEN WITH THE ANTI-LOCK BRAKE SYSTEM IN OPERATION.","consequence":"REAR WHEEL LOCK-UP MAY RESULT IN LOSS OF VEHICLECONTROL AND AN ACCIDENT.","remedy":"PORSCHE DEALERS WILL INSTALL A MODIFIED HYDRAULIC BRAKE PRESSURE REDUCTION VALVE.","notes":"SYSTEM: BRAKES; HYDRAULIC; POWER ASSIST; CHECK VALVE.VEHICLE DESCRIPTION: PASSENGER VEHICLES; MODELS 911 TURBO AND 911 AMERICAROADSTER.NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPONSERVICE DATE AND THE REMEDY IS NOT PROVIDED WITHIN A REASONABLE TIME AND FREEOF CHARGE OR THE REMEDY DOES NOT CORRECT THE DEFECT OR NONCOMPLIANCE, PLEASECONTACT PORSCHE SERVICE CENTER AT 1-800-545-8039. ALSO CONTACT THE NATIONALHIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.","mfr_campaign":null,"part_number":null,"units":1149,"completion":null,"do_not_drive":false,"park_outside":false,"notification":null,"french":null,"vehicles":[{"year":1991,"make":"PORSCHE","model":"911","vehicle_id":"1991_porsche_911","match":"exact","built_from":"1990-07-01","built_to":"1992-10-01"},{"year":1992,"make":"PORSCHE","model":"911","vehicle_id":"1992_porsche_911","match":"exact","built_from":"1990-07-01","built_to":"1992-10-01"},{"year":1993,"make":"PORSCHE","model":"911","vehicle_id":"1993_porsche_911","match":"exact","built_from":"1990-07-01","built_to":"1992-10-01"}],"may_apply":true,"as_of":"2026-10-19","lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null},"attribution":[],"url":"https://open.wenmarpro.com/recalls/nhtsa/93V205000"}