One problem related to cruise control has been reported for the 2005 Mercury Montego. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Mercury Montego based on all problems reported for the 2005 Montego.
Sudden acceleration while in cruise control mode 65 or above. And will not stop unless brakes are applied to disengage the cruise control mode.
| Vehicle Speed Control problems | |
| Car Accelerates On Its Own problems | |
| Cruise Control problems | |
| Car Slowed Down On Its Own problems |