There are 3 owner-reported powertrain & transmission complaints for the 2003 Porsche Boxsterin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2003 Porsche Boxster. The contact stated that upon starting the vehicle, the indicator lights on the gear shifter for the park(P) and the four (4) position was flashing. In addition, while driving at various speeds, the transmission failed to shift into fifth gear and the vehicle would enter LIMP Mode. The contact had taken the vehicle to a dealer on two separate occasions and was informed that the gear selector switch was sticky due to the vehicle not being driven. The vehicle was repaired after the failures; however, the failure persisted. The manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was 12,669.
TL* THE CONTACT OWNS 2003 PORSCHE BOXTER. THE CONTACT STATED THAT WHILE DRIVING 40 MPH, AN ABNORMAL NOISE WAS HEARD FROM THE VEHICLE. AFTER PARKING, THE CONTACT NOTICED OIL LEAKING FROM THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER WHERE AND DIAGNOSED AS HAVING AN INTERMEDIATE SHAFT BEARING FAILURE. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 11,000. THE VIN WAS NOT AVAILABLE.
SECOND GEAR IN THE TRANSMISSION BROKE. *AK
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.
Data synced from NHTSA on Apr 25, 2026