How to deactivate onstar<br>Contact onstar. If you want to cancel your onstar service immediately, you will need to contact the company and speak with an adviser. [substeps] The simplest way to speak with an adviser is to press the blue button on the onstar system installed in your vehicle.
Onstar does not have advisers
( z1 have :polarity - :ARG0 ( z2 company :name ( z3 name :op "Onstar" ) ) :ARG1 ( z4 person :ARG0-of ( z5 advise ) ) )