FRONT door locks sticking and now mostly not responding.
Difficult to push the knobs down unless I push the power lock (inside the car or with the remote) repeatedly. They don't pop up reliably. Has been happening infrequently on alternating sides for months and now both practically unusable. What do you suggest for me to troubleshoot which part I need to replace? Actuator? Switch? Other? Is there a diagram of how to remove the door panel? Side and rear doors work fine. Thank you!