One problem related to o2 sensor has been reported for the 2003 Toyota Camry. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Camry based on all problems reported for the 2003 Camry.
The contact owns a 2003 Toyota Camry. While parked, the check engine light illuminated on the instrument panel. The vehicle was taken to the dealer for diagnostics where the technician replaced two oxygen sensors. After the repair the check engine light illuminated intermittently and the contact noticed that the interior lights, radio and the mileage on the instrument panel continued to illuminate after the key was removed from the ignition. The contact replaced the battery but the failure continued. On another occasion while driving approximately 10 mph the vehicle stalled without warning. There were no further repairs performed to the vehicle. The approximate failure mileage was 139,000.