If you have no keys at all, you can do what they call a 30 minute relearn. That's after you purchase a key cut by code from your GM dealership. Dealerships can get your VIN number (and probably proof of ownership) and request a keycode from GM. Watch out though, most dealerships try and charge you an arm and a leg to do that and try to tell you it costs them. THEY ARE LYING!!!!! GM doesn't charge to access the key code information. It's all on GMDealerworld. That's just another way for them to try and make more money.
For the person earlier, $80.00 for a key is almost double the list price for the keys. Regular GM list price is $41.99. The rest of it must be the fees that some places add on. We, where I work, don't add on those stupid fees to keys.
Back to the relearn process. After you get your key from a dealership, it wont start your car YET. Make sure that your battery is pretty charged up. Keep most of your accessories turned off. And turn off your automatic headlamps. You don't really want your battery to go dead during this process.
1)Insert the cut key into the ignition and turn it to the "ON" position. DO NOT TRY AND START!!!
2)Leave it turned on for 10 minutes. Around the 10 min mark, your security light on your dash will go out.
3)Turn your ignition switch off but DO NOT remove the key. Leave it off for 5 seconds.
4)Do the same for step 2
5)Do the same for step 3
6)Do the same for step 2
7)Do the same for step 3
8)After you have done the THREE 10 minute cycles, I usually turn off the ignition and remove the key from the cylinder.
After that, it should start the car. Remember, the steps are 10 minutes on, 5 seconds off, 10 minutes on, 5 seconds off, and then 10 minutes on.
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