hey Mr Scotty name is Trae I have 2001 Buick LeSabre no crank no start with security light on don't know what to do NEED HELP PLEASE

security system is shutting car off. Try another known good key, if not, call a good locksmith that works on those systems cause dealer mechanics charge a ton to fix that stuff and special computers are needed to recode them when repaired

Thanks Mr Scotty