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.
Cancelling onstar will deactivate it
( z1 deactivate :ARG0 ( z2 cancel :ARG1 ( z3 company :name ( z4 name :op "Onstar" ) ) ) )