85 antitheft security code.
Thread Starter
Advanced
Joined: Apr 2010
Posts: 56
Likes: 2
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.
Race Director
Joined: Dec 2003
Posts: 14,134
Likes: 935
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.
Thread Starter
Advanced
Joined: Apr 2010
Posts: 56
Likes: 2
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.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Le Mans Master
Joined: Jul 2004
Posts: 6,227
Likes: 697
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.
Thread Starter
Advanced
Joined: Apr 2010
Posts: 56
Likes: 2
Race Director
Joined: Dec 2003
Posts: 14,134
Likes: 935
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.
