Drive Assist has no Blind Spot or Lane Assist feature
 

I bought a 2013 GL450 recently from a private seller. Seller said it has Drive Assist package and showed me how blind spot feature works while i was test driving.
Now i noticed the blind spot feature is missing. Also, radar system does not show up in Setting--> Vehicle.

Could someone explain what could have happened?

I texted the seller several times asking this question, but no response!

Is this Drive Assist package standard in GL450?

Hello and welcome to the forum! When you were doing the test drive, how was the blind spot feature demonstrated? Looking at the spec sheet, it seems that the blind spot and lane departure are standard. Do you have access to the car's manual?