Every winter I can barely get the doors open because they're frozen. Once I do get them open they won't shut until the car is warmed up for about 20 minutes. Is there something I can do to fix this? Thank you!

The latches are "frozen" because of metal contracting in the latch or latch lubricant physically becoming more viscous or freezing and preventing movement of the latch. You may need to apply a sub-freezing lubricant to prevent them from freezing up in low temperatures. Best put the car into a garage and let the general higher temperature unfreeze the latches.

Never heard of the converter being the issue. The system can be tested with the correct scanner, was that done. Do you have a loss of power of feels sluggish up hills or wnen accerating hard?

The door gaskets could be frozen to the body, or you could have ice in the door latches.
Can you drive the car into a warm garage ?

If I crank the motor while it is st ??????? Probably ignition module . When it shuts off check for spark .

is the switch in the door bad?leave the key in the ign does the key chime go off before you open the door i think that model the switch is built into the lock assembly

I have a 2000 pontiac grand prix with a digital climate control system. The heat quit working, it doesn't blow out any heat. Now that it is warm outside the air stopped blowing out any air. The digital temperature on the climate control is not correct. When it states that it is below 30 degrees on the ext and it is warm outside the air wont be cold. Once it starts going above 30 degrees the air gets colder. Today the blower stop working all together. Was told it maybe the climate control unit was bad. You can hear the door opening/shutting when you switch the temp from cold to hot. But there was no heat blowing out whatsoever in the winter time. Could you please give me your opinion on whether or not it is the climate control unit or something else?

Hello,it seems your car wont stay warm while driving, this is going to be a rather easy and inexspensive fix the thermostat is going to be stuck open. You need to replace the thermostat. Thank You

you have to get the moisture off the door latch and the linkages to the inside handle and outside handle. use a lock deicer and spray the latch and warm up the car by parking in a warm place or running the heater until it thaws. You will eventually have to remove the door trim panel & lube everything and look to make sure no exces water is getting in at the base of the window. look for gaps on the seal at ends and seal them.

My 2000 Sable does it evey winter - all 4 doors. I have found spraying WD 40 into the latch on the door works quickly to allow you to close the door.

saturate latch(best you can) with wd40 after cleaning.Clean with starting fluid then lube with wd 40