2001 hundai accent cannot unlock car doors with key. It worked on doors lastmonth. Have used lock deicer, wd-40 to no avail. Key works in ignition & trunk.

Try a different key if available. The one you are using may be worn? You can also try lubricating the ignition cylinder with some WD-40 to see if it helps. If this is unsuccessful, the ignition cylinder may have to be replaced

Adding key.
Note: You must be having one working master key to perform this function.
1. Start with the key out of the ignition, drivers door is open all others closed and drivers door is unlocked.
2. Perform these steps within 5 seconds.
A. Insert the key into the ignition(Do NOT Turn) Pull key out.
B. Insert the key into the ignition(Do NOT Turn) Pull key out.
3. Perform these steps within 40 seconds.
A. Close then open the drivers door.
B. Close then open the drivers door.
C. Insert the key into the ignition(Do NOT Turn) Pull key out.
4. Perform these steps within 40 seconds.
A. Close then open the drivers door.
B. Close then open the drivers door.
C. Insert the key into ignition and leave it in ignition.
D. Close the drivers door.
E. Turn the ignition to ON (Do NOT Start) then back to OFF.
F. Remove the key from the ignition.
5. Within 3 seconds, the power door locks should lock then unlock 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 remtoe simutaneously for 1.5 seconds.
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 lock and then unlock once indicating successful programming. If the door locks cycle twice, repeat steps A and B in step 6 as the remote was not accepted.
C. Repeat steps A and B in step 6 for each new remote.
7. Open drivers door.

No hidden buttons, or tricks...sounds like both lock cylinders need lubrication...you can try the "lock-deicer" spray available at most parts stores and discount auto departments...also you could use PB Blaster or WD 40 to spray inside your locks...use the thin red tube when spraying, and try to get some lubrication into the lock itself...you can also spray a little on your door key and reinsert after lubricating...:) Let me know as this does not work...

I have the same problem kinda. Lost my master key and sent my ecu off with a home made 2 button key to program immobiliser. This key works to start the engin and drive but I cannot get the key to program with the alarm and locking system. You can try the following steps as may work for you.

I can get my car into programming mode after step 1 but step 2 does not work for me. The locks do not go off at all, not once or twice. Battery in remote key is fine as LCD lights red.

Can anyone help please?

Toyota celica 2000 - 2005 remote keyless entry programming guide
STEP 1
1. Key out of the ignition. Open the drivers door , all other doors are closed . Driver door is unlocked

2. Perform these steps within 5 seconds
a. Insert the key into the ignition ( do not turn it ) take key out
b. Insert the key into the ignition ( do not turn it ) take key out

3. Perform these steps within 40 seconds
a. Close and then open the drivers door.
b. Close and then open the drivers door.
c. Insert the key into the ignition ( do not turn it ) and pull it out.

4. Perform these steps within 40 seconds
a. Close and then open the drivers door.
b. Close and then open the drivers door.
c. Close drivers door.
d. Insert the key into the ignition and leave it in the ignition.
Turn the ignition to on (as far as you can go without turning the engine over ), then back to off .
e. Remove the key from the ignition.

5. Within 3 seconds, the power door locks should lock then unlock automatically indicating successful entry into programming mode. Return to step 1 if the locks do not cycle at this point.

STEP 2 (Does not work for me)

6. Perform these steps within 40 seconds
a. Press the lock and unlock buttons on the transmitter simultaneously for 2 seconds
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 lock then unlock once indicating successful programming. If the door locks cycle twice, repeat steps 6a and 6b as the remote was not accepted.

7. Open drivers door

Hope this works for you.
Hayley

then you will need to buy both pieces of the ignition switch,you can order them from your dealer,and i would suggest that you have them do the job.

try this:

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. Press any button on remote for a minimum of 1 second.
System should now lock and unlock doors once.

6. Close and open drivers door.
7. Press any button on remote for a minimum of 1 second. System should now lock and
unlock doors. Once to confirm programming, twice to indicate programming failed.
8. Repeat steps 5, 6 and 7 for additional remotes.

sounds like you may have the wrong key

try lightly spraying a little WD-40 in and working the switch a few times, not a bad idea to do the same thing with the door locks every once in a while. Hope this helps.

I locked the 2000 lincoln continental with the key fob but lost it now the ignition key wilolo not unlock the door

cylinder lock