Electrical System Related Problems of the 2009 Mercury Mariner

Table 1 shows four common electrical system related problems of the 2009 Mercury Mariner. The number one most common problem is related to the electrical system (17 problems). The second most common problem is related to the car will not start (two problems).

Table 1. Electrical System related problems of Mercury Mariner


Recently reported Electrical System problems of the 2009 Mercury Mariner

The Electrical System problem

This is an update to the complaint from June- because I have to compensate manually for the electric power steering, I’ve aggravated upper back injuries and strained hip muscles I incurred from work.   Read details...

The Car Will Not Start problem

Problem started in December 2015, and got progressively worse. Engine would not start when ignition switch was turned to the start position. Had to make several attempts at it, and apply downward force on the key until the necessary contact was made. Once started it seemed to run normal.   Read details...

The Anti-theft Controller problem

The contact owns a 2009 Mercury Mariner. The contact stated that while driving approximately 10 mph the oil and battery warning indicators illuminated and the vehicle stalled. The vehicle restarted but the failure recurred on 2 other occasions. The vehicle was not taken to the dealer.   Read details...


Electrical System related problems in other Mercury Mariner model year vehicles:



Fuel Economy of Mariner Vehicles
Mariner Service Bulletins
Mariner Safety Recalls
Mariner Defect Investigations