After arriving to court LATE, Lindsay Lohan copped an plea deal and will spend 90 days in lockdown rehab ... with NO jail time AGAIN!

Lindsay pled no contest to the crimes of reckless driving and lying to cops.  In addition to rehab, Lindsay will perform 30 days of community labor and undergo psychotherapy for 18 months -- she'll get credit for shrink time already completed.

 Lindsay will be able to do her rehab in New York City.  She must stay clear of drugs and drug users.  She also must submit to drug testing.

She's also admitted to a probation violation in the jewelry heist case, she was sentenced to 180 days in jail, but that sentence was STAYED and she won't do time if she continues to obey all laws.

The judge also offered a suggestion, "Don't drive."

Read more: http://www.tmz.com#ixzz2Nv9kFtcm 
Visit the TMZ Store: http://tmzstore.com

What happened when Lindsay arrived in court? SEE THE VIDEO HERE