One problem related to brake abs warning light has been reported for the 2008 Mercury Mariner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Mercury Mariner based on all problems reported for the 2008 Mariner.
Abs light ,regen brakes disabled and check brake system message comes on at anytime while driving. Lose braking power, causing driver to push brake very hard to stop and brake pedal sometimes goes to the floor. When car stops sometimes it won't restart for days. It has a new battery. Coolant code comes on also and the car isn't running hot. This is a dangerous problem and needs a recall. Other than that the car runs great.