85 antitheft security code.
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Joined: Apr 2010
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85 antitheft security code.
Finally I learned how to clear the security code on my 85. I replaced the battery because it was 25 years old and the car only has 349 miles on it and I intend to use it. Here is the trick shown to me by my Chevy mechanic friend. Put your factory key in the ignition and turn it on for 10 minutes then turn it off for 1 minute then do the same thing about three times. The computer will re learn the key and it started right up. It took about 1/2 hour. Does not apply to keys with the computer chip on them.
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Joined: Dec 2003
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From: Fremont Ca
2022 C4 of the Year Finalist - Modified
Finally I learned how to clear the security code on my 85. I replaced the battery because it was 25 years old and the car only has 349 miles on it and I intend to use it. Here is the trick shown to me by my Chevy mechanic friend. Put your factory key in the ignition and turn it on for 10 minutes then turn it off for 1 minute then do the same thing about three times. The computer will re learn the key and it started right up. It took about 1/2 hour. Does not apply to keys with the computer chip on them.
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Joined: Apr 2010
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I don't know about any special option but it was just a regular key. I don't know much about this car because I got it from a tenant as part of an eviction process. I don't even have a manual. I am getting new tires tomorrow and intend to drive it. I am 74 and will probably never wear it out.
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From: Clifton Park, NY ............Clearwater, FL ... 85 Original Owner
Finally I learned how to clear the security code on my 85. I replaced the battery because it was 25 years old and the car only has 349 miles on it and I intend to use it. Here is the trick shown to me by my Chevy mechanic friend. Put your factory key in the ignition and turn it on for 10 minutes then turn it off for 1 minute then do the same thing about three times. The computer will re learn the key and it started right up. It took about 1/2 hour. Does not apply to keys with the computer chip on them.
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Advanced
Joined: Apr 2010
Posts: 56
Likes: 2
Race Director
Joined: Dec 2003
Posts: 14,168
Likes: 943
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
Does your mechanic friend wear a tinfoil hat and talk to the mail box?The secret here is you WANT the flashing security light.Enough of the BS here,lets see some pictures of a 300 mile 85.
