One problem related to overdrive light on has been reported for the 2007 Mercury Mariner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Mercury Mariner based on all problems reported for the 2007 Mariner.
The contact owns a 2007 Mercury Mariner. The contact stated that while driving 20 mph, the overdrive light illuminated. The contact pushed the overdrive button to deactivate the system but the light did not deactivate. The contact also stated that the vehicle stalled while driving and the transmission did not shift in a timely manner. The contact took the vehicle to a dealer for a diagnostic test. The test results showed a defective transmission. The dealer stated the entire power train system needed to be replaced. The vehicle was repaired by a private mechanic. The failure mileage was 47,000.