2003 Cruiser - my car doors just unlock even when there is no key in the ignition. Also it randomly keeps unlocking and locking when i'm driving. Any advice? I have called the Chrysler dealers and they are fluffing for lots of money just to check what the problem is!

Auto Repair : Power Door Lock Troubleshooting

sofia2013.com/auto-repair-power-door-lock-troubleshooting/

Jul 29, 2014 - can't use the key i have to go through the passenger door and unlock it ... when I get out of my 2003 Honda Accord, and leave the keys in the ignition, ... Any ideas why all the doors wont lock even pushing the lock button in the

Remote won't unlock passenger or rear doors - TDIClub Forums

https://forums.tdiclub.com/showthread.php?t=355194

Jun 4, 2014 - Will unlock the drivers side door and rear hatch (wagon). ... Any ideas, ... I have the VCDS and tried to program the remote with no success. ... precisely, but it was something like put the key in ignition, turn to acc, then push the unlock button. .... fiddling around with passenger door did not produce any result.

Door locked with key in ignition - TDIClub Forums

https://forums.tdiclub.com/showthread.php?t=125387

Dec 17, 2005 - Anybody have any ideas on this? I know there should ... The door willlock with the key in the ignition and the car running. It does automatically ...

Ignition key won't open door - 8th Generation Honda Civic Forum

www.8thcivic.com > ... > Mechanical Problems & Technical Chat

could be a weak switch , hold it down or off while driving and see if it stops if it does this switch is bad do it to them all till you find the right one , or you have a short in a wire but I think it is the latter , good luck

With factory controls the door locks get there signal from the body control module and can be set to lock every time the car gets above 15 mph if a door jam switch has a intermittent connection failure this could cause the door locks to cycle at will.
With a aftermarket alarm most lock and unlock with the key cycle and loose grounds can make these modules cycle the locks at will also.

1. Start with key out of ignition, drivers door is open all others closed and
drivers door is unlocked.
2. Insert key into the ignition (Do NOT Turn) and Pull key out.
3. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Close, then open drivers door.
4. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Remove the key from the ignition.
5. Within 3 seconds the power door locks should cycle automatically indicating successful
entry into programming mode. Return to step 1 if the locks do not cycle at this point.
6. Perform these steps within 40 seconds.
A. Press the lock and unlock buttons on the remote simultaneously for 1 second.
B. Immediately after letting go of the lock and unlock buttons, press the lock button by
itself and hold for 2 seconds. Within 3 seconds, the door locks should cycle once
indicating successful programming. If the door locks do not cycle, or cycle twice.
repeat steps A and B in step 6 as your remote has not been accepted.
C. Repeat steps A and B in step 6 for each new remote.
7. Close drivers door.

YOU MUST HAVE MASTER KEY:
1. Start with key out of ignition, drivers door is open all others closed and
drivers door is unlocked.
2. Insert key into the ignition (Do NOT Turn) and Pull key out.
3. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Close, then open drivers door.
4. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Remove the key from the ignition.
5. Within 3 seconds the power door locks should cycle automatically indicating successful
entry into programming mode. Return to step 1 if the locks do not cycle at this point.
6. Perform these steps within 40 seconds.
A. Press the lock and unlock buttons on the remote simultaneously for 1 second.
B. Immediately after letting go of the lock and unlock buttons, press the lock button by
itself and hold for 2 seconds. Within 3 seconds, the door locks should cycle once
indicating successful programming. If the door locks do not cycle, or cycle twice.
repeat steps A and B in step 6 as your remote has not been accepted.
C. Repeat steps A and B in step 6 for each new remote.
7. Close drivers door.

The RKEM (remote keyless entry module) is the problem.
Only a DRB-III scanner can program the transmitter codes and VIN number to remedy this problem....I hope this helps.

1. Start with the following conditions: you are in the vehicle a. Key is out of the ignition
b. Drive door is open ( all other doors are closed)
c. Driver door is unlocked (other door locks don't matter)
2. Insert the key into the ignition (don't turn it) and pull it out.
3. Perform these steps within 40 seconds: a. Cycle the power locks 5 times. Use an even pace and try
to go relatively fast. b. Close, then open the drivers door.
4. Perform these steps within 40 seconds: a. Cycle the power locks 5 times (same as before).
b. Turn the ignition to ON then back to OFF.
c. Turn the ignition to ON then back to OFF.
d. Remove the key from the ignition.
5. Within 3 seconds, the power door locks should cycle (automatically)
indicating successful entry into programming mode. Return to step 1
if the locks do not cycle at this point.
6. Perform these steps within 40 seconds: a. Press the LOCK and UNLOCK buttons on the transmitter
simultaneously for 1 second. b. Immediately after letting go of the lock and unlock buttons,
press the lock button by itself and hold for 2 seconds.
Within 3 seconds, the door locks should cycle ( LOCK then
UNLOCK) once-- indicating successful programming. If
the door locks don't cycle, or cycle twice. Repeat steps
6a and 6b--this remote has not been accepted. c. Repeat steps 6a and 6b for EACH transmitter that will
operate the vehicle. Including any old transmitters.
7. Close the driver door.
Good luck and hope this helps.

Could be a problem in the shiftier. Your car doors lock automatically when you put the car in drive. They unlock when you put the car in park. The switch located in the shiftier can go bad causing the locks to randomly lock and unlock. Also, this can cause the key to get stuck in the ignition.

I never thought about this before, it may be normal on some vehicles. I have been able to lock/unlock my 2003 without the key in ignition since it was new.

This is something that happens to me on the same car - if you use the fob to unlock the door, ti will lock automatically in about 20 seconds if you do not pull an outside handle to open the door - it is part of the security system - I have not found a solution other than one similar to yours - a "dumb" key in my wallet to unlock the door when it happens