Answering my own question as I was finally able to find it. It is located in the dash above the steering wheel assembly. Thought I would post just in case someone else is looking for it also
Assuming you don't mean the actual buttons, but the control module itself. That would be located in the dash on the drivers side above the steering wheel assembly.
To disconnect the OnStar phone in a 2003 GMC Sierra, start by locating the OnStar control panel, typically found on the overhead console. Press the OnStar button to access the menu, then follow the prompts to deactivate the service or disconnect the phone. Alternatively, you can remove the OnStar module, which is usually located under the dashboard or in the trunk, but this may require technical knowledge. For assistance, consult the owner's manual or contact OnStar customer support.
Under the radio.
The OnStar Corporation provides a 24 hour service. The OnStar button is located inside your car and will connect you to someone who can help you with directions or in emergencies. Originally OnStar was only available for GM vehicles, but can now be put into any brand of car.
Either on the rear view mirror, on right by the radio
The Vehicle interface unit VIU and the Vehicle control unit VCU and the receiver is located behind the glove box in the passenger footwell. the onstar button is located int he overhead console. the modules are vin specific so they cant be swapped out without GM. you can remove them I have a 02 and since its no longer supported by onstar i yanked out the VIU and VCU and the cell phone receiver. then took the GPS transponder off the front driver side of the windshield and the rear attenna off the back glass and got an overhead console minus onstar and put it up. They unplug and cause no problems The fuse is fuse 32. The actual guts of the Onstar system is in the frontmost overhead compartment that is between the driver and passenger seats. However, if the option wasn't purchased you'll just have an extra slot for sunglasses.
OnStar was created in 1995.
In order to disable OnStar unplug the cords that are connected to the OnStar box. The OnStar box is found in the inside panel of the trunk of the car.
Sorry, OnStar can be activated with a Verizon phone. The OnStar phone can be added to a family plan as a family phone.
The fuse for the OnStar system in a 2017 Chevy Impala is located in the underhood fuse box. You can find the specific fuse by referring to the fuse box cover, which usually has a diagram indicating the function of each fuse. It is typically labeled as "OnStar" or similar. If you're experiencing issues with the OnStar system, checking this fuse is a good first step.
Driver Air bags, Passenger Air bags, Passenger Air Bag On/Off Switch Standard, Front Head Curtain Side Impact Air Bags, Rear Head Curtain Side Impact Air Bags, OnStar Automatic Crash Response, OnStar Stolen Vehicle Assistance, OnStar Remote Door Unlock, OnStar Emergency Services , OnStar Roadside Assistance , Onstar Hands Free Calling, Onstar Vehicle Diagnostics, Daytime Running Lamps, Traction Control System,StabiliTrak Electronic Stability Control System, Vehicle Anti-Theft System, Front Disc/Rear Drum Brakes, Not Available 4- Wheel ABS, Rear Door Child Security Lockout, Remote Keyless Entry, Tire Pressure Monitor
There are very few places that onstar is not available, and a few places where onstar has limited availability. The few places that Onstar is limited or has no service is scattered throughout the US. Onstar is available in approximately 98% of the Us nationwide.