One problem related to turn signal has been reported for the 2003 Mercury Marquis. The most recently reported issues are listed below.
The contact owns a 2003 Mercury Marquis. The contact stated that the headlights and turn signals failed while he was driving. The vehicle was taken to an authorized dealer who stated that the headlight module was defective. It was replaced several times but the failure continued. The contact called the manufacturer who offered no assistance. The vehicle had not been repaired. The failure mileage was 3,000 and the current mileage was 70,000.
| Headlights problems | |
| Turn Signal problems |