Question about 2008 Toyota Sienna

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Transponder Key Programming

I just purchased a 2008 Sienna and only received 1 key. It is the black master key. Being a cheapskate I didn't want to pay the dealer prices for a new key. I found new transponder key blanks, but is it possible to program them yourself, or does it require special equipment?

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  • Toyota Ed May 11, 2010

    You need the dealer's scan tool to program the new key.

    Also, some of the "cheaper" transponder keys do not program.

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Keys are not all the same, it is possible the key you bought may not work, it should be searched by VIN by the dealer, and the dealer has to program with factory scan tool, should cost no more than .5 hours in labor.

Posted on Jan 25, 2009

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How toprogramm car key toyota matrix


  • 1 First you will need to purchase a blank Toyota transponder key. You can do this from the dealership, a locksmith, or an online source such as eBay. Once you have the key, take the blank key and the master key to a locksmith that he or she can duplicate the key. This will be much cheaper than the dealership.
  • 2 Now that you have the newly cut key and the master key, you can program the Toyota transponder key. Sit in the driver's side of the Toyota vehicle. Press and release the brake and gas pedal simultaneously.
  • 3 Insert the master transponder key. Do not turn it. Push and release the gas pedal 5 times within at least 15 seconds of inserting the master key.
  • 4 Press and release the brake pedal 6 times within 20 seconds of completing step 3, then remove the master transponder key.
  • 5 Insert the newly cut transponder key into the ignition, but do not turn. Press the gas pedal once.
  • 6 Wait up to 2 minutes or whenever the security light on the dashboard turns off. Once the light goes off, remove the new transponder key and press the brake pedal once. The new transponder key should now be programmed. Test the key by attempting to start the engine. If the engine does not start, repeat the steps above.
  • Mar 02, 2015 | 2010 Toyota Matrix

    1 Answer

    At times my 2011 seinna willnot crank. the dash video will say that it does not recognise my key. then after a number of tries it will crank. my toyota dealer could find no problem.


    Do you have any issues with your other key? There is a small RF transponder in your key that is transmitted to a module in your vehicle. When the module identifies a valid signal it will allow the vehicle to start. What happening is that your vehicle isn't identifying the key because the transponder signal is weak. I would speak to someone at the service department at the dealership where you purchased the vehicle and have them cut and program you a new key to replace your defective one.

    May 27, 2011 | 2011 Toyota Sienna

    1 Answer

    I had a key made and it desabled the security system in my 1999 mercury cougar and now the car wont start and I need to have it reset.


    All you have to do to reset the antitheft system is to lock the doors with the key fob.

    Your new key has to be programmed to your engine computer (PCM) before it will work.

    To program, follow the directions in your owner manual. You need 2 already rpogrammed keys to do this.

    If you don't have 2 programmed keys, your dealer will have to use his diagnositc tool to retrieve the information from the computer. Always have 2 programmed keys. I actually keep 3 in case I lose one, I still have 2 to program a 3rd one myself.

    If you have AAA, have it towed to the delaer as a "no Start" so you don't have to pay the tow charge.

    I assume this new ket is your only key now, or you could drive to the dealer with your spare key.
    -------------------------------------------------
    SECTION 419-01B: Anti-Theft - Passive 1999 Cougar Workshop Manual GENERAL PROCEDURES Procedure revision date: 09/14/2001
    Key Programming Using Two Programmed Keys NOTE: This procedure only works if two or more programmed ignition keys are available and it is desired to program additional key(s). If two keys are not available. For additional information, refer to Key Programming - Erase All Keys and Program Two Keys in this section.
    NOTE: PID SPARE - KY must be enabled for this procedure to operate. If this PID is not enabled, refer to Security Access then select Spare Key Programming Switch; Enabled.
    NOTE: If the programming procedure is successful, the new key(s) will start the vehicle and the anti-theft indicator will illuminate for approximately three seconds.
    NOTE: If the programming procedure is not successful, the new key(s) will not start the vehicle and the anti-theft indicator will flash. If the programming procedure was not successful leave the ignition switch in the RUN position for at least 30 seconds, repeat the Key Programming procedure from Step 1. If the failure repeats, refer to Diagnostic and Testing to review DTCs an carry out Pinpoint Tests.
    NOTE: A maximum of eight ignition keys can be programmed to a passive anti-theft system (PATS) equipped vehicle.
    NOTE: If the steps are not carried out as outlined, the programming procedure will end.
    NOTE: Ignition keys must have correct mechanical key cut for the vehicle and must be a PATS encoded key.
    1. Insert first programmed key into ignition lock cylinder and turn the ignition switch from the OFF position to the RUN position (maintain ignition switch in the RUN position for one second).
    1. Turn ignition switch to the OFF position and remove the first key from the ignition lock cylinder.
    1. Within five seconds of turning the ignition switch to the OFF position, insert the second programmed ignition key into the ignition lock cylinder and turn the ignition switch from the OFF position to the RUN position (maintain the ignition switch in the RUN position for one second).
    1. Turn the ignition switch to the OFF position and remove the second key from the ignition lock cylinder.
    1. Within ten seconds of turning the ignition switch to the OFF position , insert the unprogrammed ignition key (new key) into the ignition lock cylinder and turn the ignition switch from the OFF position to the RUN position (maintain the ignition switch in the RUN position for one second).
    1. If it desired to program additional key(s), repeat the applicable key programming procedure from step 1.
    2. ----------------------------------------------------------------------------------------------------------------------------------
    Passive Anti - Theft System (PATS)
    The Passive Anti-Theft System (PATS) is fully passive in operation and requires no special procedures by the driver to arm or disarm the system. It is invisible to normal scrutiny and is operated by a miniature transponder within the key body. The transponder communicates with the powertrain control module through a transceiver mounted around the ignition switch lock barrel. The PATS functionality is incorporated within the powertrain control module.
    PATS may be identified by a larger than normal sized ignition key. A larger sized ignition key indicates the presence of the transponder that controls the system.
    The transponder code reading is carried out when the key, having been inserted into the ignition lock barrel, is turned from position ``0'' to position ``II'' to crank the engine. If the PCM receives the correct code, the engine will start. If the PCM receives either no code or an incorrect code the engine will not crank and PATS remains armed and the engine immobilised.
    Anti-Theft Indicator
    Whenever the ignition is switched on the anti - theft indicator will remain on for three seconds while the system reads the ignition key code.
    The anti - theft indicator will flash rapidly or glow continuously after the initial three seconds to indicate the PATS has immobilised the vehicle.
    For additional information on the PATS fault codes, refer to the Diagnosis and Testing section
    -------------------------------------------------------------------------
    The PATS uses a specially encoded ignition key. Each encoded ignition key contains a permanently installed electronic device called a transponder. Each transponder contains a unique electronic identification code out of over four quadrillion combinations.
    Each encoded ignition key must be programmed into the vehicle's powertrain control module (PCM) before it can be used to start the engine. There are special diagnostic repair procedures outlined in this manual that must be performed if an encoded ignition key needs to be replaced
    ------------------------------------------------------------------------

    Dec 16, 2010 | 1999 Mercury Cougar

    1 Answer

    VW Sharan (2000model) - Recoding Keys


    Programming
    When
    Key buttons operated repeatedly while vehicle out of range and system becomes inoperative. Key added or replaced. System malfunction.
    How
    Obtain all keys fitted with remote control. Close all windows and doors. Insert key into driver's door lock. Turn key to unlock position 3 times. Remove key.
    NOTE: Hold key in unlocked position for 0,5 second.
    Programming mode activated (driver's door LED illuminated). Carry out the following within 20 seconds: Point key at infrared receiver. Located near rear view mirror. Press and hold lock button within 5 seconds Fig. 1 [1]. Press unlock button 3 times Fig. 1 [2]. Release lock button Fig. 1 [1]. Correct programming indicated by driver's door LED flashing. Repeat above procedure within 15 seconds to program remaining keys. To exit programming mode and extinguish LED: Wait 15 seconds.
    NOTE: A maximum of 4 keys can be programmed.

    Feb 04, 2010 | 2000 Volkswagen Jetta TDI

    1 Answer

    2006 dodge charger transponder key stopped working. car wont start anymore. i can open and lock the doors fine but just cant get the car to start


    This means that the programming of the Transponder Key has been corrupted or the Programming data of the Key in ECU ( Electric Control Unit ) has been lost or not responding. You now have to get a new Transponder Key. You can get it on E-bay for $30. After you receive it, reprogram the car to the New Transponder Key to the ECU ( the process in usually given in the instruction manual or in the Service Manual ). Then the car will start perfectly.

    Sep 26, 2009 | 2006 Dodge Charger

    2 Answers

    I have one of the keys for my 2008 trailblazer but I have misplaced the other key. Where can i purchase another key


    Those particular keys have a built in transponder in them. You need to go to the dealer and buy a key.

    Jul 27, 2009 | 2008 Chevrolet Trailblazer

    2 Answers

    A light on dash board like a carr with a key doesnot off


    tire pressure gauge may be in set position or may indicate low tire pressure

    Jul 26, 2009 | 2007 Toyota Sienna

    2 Answers

    Need spare key and transponder key for remote start universal byp


    you have to tow car to dealer - then they cut and program key - yes,it is a bit pricey!
    internet offers ways but will only work couple times - repos do same thing

    Jan 06, 2009 | 2007 Mitsubishi Eclipse

    1 Answer

    My car key


    If you have a local locksmith you can trust, he should be able to get you into the car. He will need the VIN number.

    Nov 21, 2008 | 2002 Toyota Sienna

    1 Answer

    2001 chevy venture lost key


    You must get a new key from the dealer. Bring in the registration, and photo I.D. Then they will cut you a key. After that, try this procedure....
    1. With a master passkey III key (Black), turn ON the ignition, with the engine OFF.
    2. Observe the Security telltale, after approximately 10 minutes the telltale will turn off.
    3. Turn OFF the ignition, and wait 5 seconds.
    4. Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.
    5. With a master passkey III key, start the vehicle. The vehicle has now learned the key transponder information and the PCM has now learned the fuel continue password.
    6. If it does not work, you will need to get it to the dealer.
    GM technicians on-line

    Jul 16, 2008 | 2001 Chevrolet Venture

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