Hello, We have a 2006 Sienna. When the ignition

2006 models program. differently Make sure to check the batteries in the fobs before starting.Note: You must have two valid keys to add a new key to the system.If you do not have two working keys you will have to have a locksmith program a key for you. step 1. Insert the first valid key into the ignition switch. Turn the ignition switch to the ON/RUN position for at least three seconds, but no longer than 15 seconds. Then, Turn the ignition switch to the LOCK position and remove the first key.
step 2. Insert the second valid key into the ignition switch. Turn the ignition switch to the ON/RUN position within 15 seconds. After 10 seconds, a chime will sound. In addition, the Vehicle Security Light will begin to flash. Turn the ignition switch to the LOCK position and remove the second key.
step 3. Insert the new key into the ignition switch. Turn the ignition switch to the ON/RUN position.within 60 seconds. After 10 seconds, a single chime will sound. In addition, the Vehicle Security Light will stop flashing. To indicate that programming is complete, the Vehicle Security Light will turn on again for seconds and then turn off.
The new key is now programmed.
The Remote keyless Entry transmitter will also be programmed.
Repeat this procedure to program up to eight keys.

You are in luck! You can program a 2006 Ford Five Hundred key fob yourself and don't need to go to a dealer or professional. The steps are pretty easy, it's the timing of the steps that you have to pay attention to. You most likely will not get the programming correct on the first try, keep at it, you will get it.

Here are the key fob programming instructions for a 2006 Ford Five Hundred:
*** THERE ARE 2 POSSIBLE PROGRAMMING PROCEDURES. ***Procedure #1Note: Obtain all remote transmitters for this vehicle.
Note: Do not depress the brake pedal during procedure.

1. Turn ignition from OFF to RUN 8 times within 10 seconds, with the 8th time ending in RUN. Door locks will cycle to confirm programming mode. (Off is the position where you can remove your key, RUN is the position just shy of starting your car.)
2. Within 20 seconds press any button on the first keyless remote to be programmed. Door locks will cycle to confirm programming. If you only have one remote then skip to step 4.
3. Within 20 seconds, press any button on the second keyless remote. Door locks will cycle again to confirm programming. Repeat step 3. For all other remotes.
4. Turn ignition to OFF. Locks will again cycle to indicate end of programming mode.
   
   Procedure #2Note: Obtain all remote transmitters for this vehicle.1Fasten seat belts and close all doors.
5. Turn ignition from OFF to RUN 4 times within 6 seconds, with the 4th time ending in RUN. (Off is the position where you can remove your key, RUN is the position just shy of starting your car.)
6. Turn ignition to OFF. Acoustic signal will sound and system warning lamp will illuminate to confirm programming mode.
7. Within 10 seconds, press and hold any button on the first keyless remote. Wait for acoustic sound and warning lamp to flash (confirming programming) then release button on remote. Wait 2 seconds but within 10 seconds repeat step 4. For all other remotes. If you only have one remote then continue to step 5.
8. Turn ignition to Crank or wait 10 seconds to end programming mode.

Make sure you have a spare key fob too. You can save a bunch of money ordering a spare key fob online at:
https://www.keylessentryremotefob.com/Ford-Five-Hundred-Remotes-and-Keys-s/5167.htm

did some quick research for you and found this easy and very clear step by step instructions on how to program your transponder car key to your vehicle.. this works for the following models though :

Accord 2003 to 2006

Civic 1999 to 2006

Element 2003 to 2006

Odyssey 1999 to 2006

Prelude1999 to 2001

Accord SE 1997

CR-V 1998 to 2006

Insight 2000 to 2006

Pilot 2002 to 2006

now here are the steps:

1. Turn the ignition on
2. Press Lock/Unlock within 4 seconds
3. Turn ignition off and hen back on within 8 seconds
4. Repeat steps 2-3 two times
5. Press Lock/Unlock again within 4 seconds. The system should now lock and unlock the vehicle to indicate it is in programming mode.
6. In the next 10 seconds: press Lock/Unlock button allowing the doors to lock/unlock once; then press lock/unlock button of each remaining key, allowing the doors to lock/unlock once.
7. Switch ignition off and then remove the key

Civic 1996-1998

1. Turn ignition on
2. Press and hold the valet button which is situated on the radio within 5 seconds.
3. System should now lock and unlock the vehicle indicating it is in the programming mode
4. Within 5 seconds turn ignition OFF and press Lock/unlock on the remote fob to be programmed
5. Within the next 10 seconds, press Lock or Unlock of any remaining keys, allowing the doors o lock or unlock once.
6. Release valet key
7. Switch ignition off and then remove the key

Radio remotes 2 and 3 button types

1. Switch ignition on and repeat for 3 times.
2. Press he lock button, switch the ignition off and back on and then press lock button again.
3. System should now lock or unlock
4. Press the lock button of all remotes to be coded. The car should acknowledge this by locking/unlocking each time
5. Switch ignition off to exit the programming mode.

If you will have any further doubts or question to ask i suggest you to check out the page where i found this which is http://www.carkeyadvice.com/step-by-step-fob-programming-guides/honda :) i hope this was the solution you were looking for mate! happy happy new year!

SYSTEM ARMS AFTER SWITCHING IGNITION OFF, SWITCH IGNITION ON, IMMOBOLIZER WARNING LAMP ILLUMINATES FOR A FEW SECONDS,IF IMMOBOLIZER WARNING LAMP ILLUMINATES FOR A FEW SECONDS THEN FLASHES RAPIDLY,KEY CODE NOT RECOGNIZED, REMOVE KEY AND TRY AGAIN,IF THIS PROCEDURE FAILS.THE DEALERSHIP WILL HAVE TO REPROGRAM KEYS AND THE IMMOBOLIZER.

My 2006 PT Cruiser has the same problem! When hot in the cab it won't start but after it is cool outside it starts up without missing a lick! When it is hot and you turn the key you get nothing but do have power to lights, radio, etc. weirdest thing ever and nobody knows why! We have had the ignition module replaced and have a new battery. This one has stumped everyone. Any suggestions folks?

Reset the "MAINT REQD" Light on Toyota Sienna:

1. With the car started (ignition on), set the LCD odometer readout to total mileage (not trip A or B).
2. Turn the car off (ignition key to the OFF position).
3. Push in AND HOLD the button/knob that switches the odometer
4. Turn key to ON position without starting the car. You will notice the maintenance light blink and go out.
5. Release the odometer button/knob.
6. Turn key to OFF position.
7. That's it! The "MAINT REQD" light has been reset to warn you to change your oil in another 5,000 or 7,500 miles or so.

Hope helped with this (remember rated this help) Good luck.

dealer only

Try reprogramming it.

1. Turn the ignition from OFF to RUN 4 times within 6 seconds.
2. Turn the ignition OFF. The system will chime to confirm programming mode.
3. Within 20 seconds, press any button on first keyless remote.
The system will chime once to confirm programming.
4. Within 20 seconds, press any button on second keyless remote.
System will chime once to confirm programming.
5. Turn ignition to RUN to exit programming mode.

Add Duplicate Key (PK3 or PK3+ key)
1. Insert an existing key into the ignition cylinder.
2. Turn the ignition cylinder to ON (RUN) and back to OFF.
3. Remove the existing key and, within fifteen seconds, insert the new key
and turn it to ON (RUN).
4. The security light will light up for two seconds to indicate success in programming
the key into the vehicle.
Originate New Master Key (PK3 or PK3+ key)

1. Insert new key into ignition cylinder and turn it to the ON (RUN) position.
The security light on the dash will illuminate and stay on for ten minutes.
2. When the security light goes out, you have one minute to start the next
step. Turn the ignition cylinder to OFF and then back to the ON (RUN)
position. The security light on the dash will illuminate and stay on for ten
more minutes.
3. When the security light goes out, you have one minute to start the next
step. Turn the ignition cylinder to OFF and then back on the ON (RUN)
position. The security light on the dash will illuminate and stay on for ten
more minutes.
4. After the security light has gone off the third time, the key has been programmed
into the vehicle’s computer and will operate the car. It has replaced ALL the
previous electronic key codes and is the ONLY key programmed into the
vehicle’s computer.

Add Duplicate Key (PK3 or PK3+ key)

1. Insert an existing key into the ignition cylinder.
2. Turn the ignition cylinder to ON (RUN) and back to OFF.
3. Remove the existing key and, within fifteen seconds, insert the new key
and turn it to ON (RUN).
4. The security light will light up for two seconds to indicate success in programming
the key into the vehicle.

1. Start with key out of the ignition, drivers door is open all others closed and
drivers door is unlocked.
2. Insert key into ignition (Do not turn) and pull it out.
3. Perform these steps within 40 seconds.
A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting
with lock. Use an even pace and try to go about one cycle per second.
(1 cycle = 1 lock and 1 unlock.)
B. Close, then open drivers door.
4. Perform these steps within 40 seconds.
A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting
with lock. Use an even pace and try to go about one cycle per second.
(1 cycle = 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. Turn the ignition to ON (Do NOT Start) then back to OFF.
E. 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 don't cycle or
cycle twice, repeat steps A and B, your remote has not been accepted.
C. Repeat steps A and B in step 6 for each new transmitter.
7. Close drivers door.