https://goes-app.cbp.dhs.gov
Vehicle Inspection No Longer Required
Posted on November 17, 2015
Effective November 17, 2015, a vehicle inspection will no longer be required to register a vehicle for use in the SENTRI lanes. A Vehicle Enrollment application must still be submitted via your GOES account and the vehicle must be approved prior to use in the lanes. Applicants and members affected by this change will be receiving an email notification with additional details. If you have a pending vehicle application, please do not attempt to schedule a vehicle inspection after November 17, 2015.
Log in to GOES and go to Manage Membership --> U.S. Programs --> Add Vehicle and put in the details. There should be no inspection, but approval is not instant. If it charges you a fee for doing this, than that's the fee.
(GE includes SENTRI, so a member of GE cannot apply for SENTRI as he or she is already a member of SENTRI. You will notice this in your GOES account.)