If you're experiencing transmission problems, it's not a simple reset button that's the solution. Instead, you should:
* Check the transmission fluid level and condition: Low or dirty fluid is a common cause of transmission issues.
* Have the transmission professionally diagnosed: A mechanic can use diagnostic tools to identify the specific problem. This is crucial because transmission problems can range from relatively minor to very expensive repairs.
* Consider the age and condition of the vehicle: A very old Concorde might simply need a major transmission overhaul or replacement.
Attempting to "reset" something without understanding the issue could lead to further damage or misdiagnosis. Focus on getting a proper diagnosis from a qualified mechanic.