thelexo99 Posted June 29, 2011 Share Posted June 29, 2011 Hi All, can someone provide me with the 1998 GS300 key programming instructions? I have the master and bought a spare key with transponder ($30), but I need to program this spare key. Many forms mentioned that you can do so as long as you have the master key. I can't find any instructions on do-it-yourself. Thanks. Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted June 29, 2011 Share Posted June 29, 2011 Here you go. 1998 LS400 key programming.pdf Quote Link to comment Share on other sites More sharing options...
thelexo99 Posted June 29, 2011 Author Share Posted June 29, 2011 You are amazing! Thank you! Here you go. Quote Link to comment Share on other sites More sharing options...
TA in KC Posted June 30, 2011 Share Posted June 30, 2011 After recently adding a key to my 98 LS400, I learned that there are actually two procedures that must be performed before the key can be used to start the car. The first procedure is in the document that 1990LS400 provided- those instructions are for programming the remote to unlock the doors/trunk. Before you can use the key to start the car, you also need to register the transponder/immobilizer with a seperate procedure that involves inserting the key and pressing the accelerator and brake pedals in a special sequence. Did you find these instructions elsewhere and get your key to work? I have them written down at home and can post them if needed. Quote Link to comment Share on other sites More sharing options...
Dealsearcher Posted November 5, 2012 Share Posted November 5, 2012 This thread is a little dated, but if you can post the accelerator and brake pedals special sequence it would be great. Thanks. After recently adding a key to my 98 LS400, I learned that there are actually two procedures that must be performed before the key can be used to start the car. The first procedure is in the document that 1990LS400 provided- those instructions are for programming the remote to unlock the doors/trunk. Before you can use the key to start the car, you also need to register the transponder/immobilizer with a seperate procedure that involves inserting the key and pressing the accelerator and brake pedals in a special sequence. Did you find these instructions elsewhere and get your key to work? I have them written down at home and can post them if needed. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.