i have a 1990 buick regal custom anit lock brake question on 1990 Buick Regal

i have a 1990 buick regal custom and i dont have the owners manual with it. i need to know for my ins co if i have anti-lock brakes on the car..

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3 answers
Turn key on and watch dash should see the antilock brake light come on for a second. Regal, i am sure it does!
check around the rotor to see if you have a speed sensor on it
call the dealer with your vin # and they should be able to adv u