Skip to content
AnyRecalls

Vehicle recall 93V205000 · December 7, 1993

1991-1993 Porsche 911

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…

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

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.

Recall details

NHTSA campaign
93V205000
Reported to NHTSA
December 7, 1993
Filed by
PORSCHE CARS N.A. INC.
Owner notification
January 3, 1994
Vehicles potentially affected
1,149
Initiated by
the manufacturer
Components
Service brakes, hydraulic › Power assist › Vacuum › Hoses, lines/piping, and fittings
Recall 93V205000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Has your Porsche been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Porsche dealer can also check your VIN. Recall repairs are free.