One problem related to visibility has been reported for the 2003 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mercury Grand Marquis based on all problems reported for the 2003 Grand Marquis.
This is on my 2003 Mercury Grand Marquis GS. The light processor failed and my headlights went out after driving the vehicle for 5 to 10 minutes. They continue to do this until the system would reset, taking 15 to 30 seconds. This also happen on my 1997 Ford crown vic fire chiefs car when I had that vehicle. Both vehicles needed to have the light processor replaced costing over $500. 00. My mechanic stated that when he called the dealer they stated that they always keep 3 or 4 in stock because this is a problem. My question is why is this not a recall item??? the headlights going out while driving down the road at night must be a safety issue? thank you for your time in this matter.