I have a question about the parking brake on my Altima. Can
the parking cable wear out/stretch to the point where it can't be adjusted anymore? My brake will not hold my car when it is parked uphill, and there are alot of hills inPittsburgh

I had it serviced a few months ago and the tech said that it was adjusted as far as it could be. Now I have the same problem with it not holding on hills too well. If it matters, I have a pedal parking brake. Do I need a new cable(s)? Ahny help is appreciated. TY