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Hardware Upgrade Notice

Drive a 2006 or newer vehicle? If equipped with OnStar®13G (no Wi-Fi®) or 4G LTE (with Wi-Fi®) system, your vehicle may qualify for a 3 Months On Us trial2 of the OnStar Guidance Plan (excluding Hands-Free Calling minutes), which includes a comprehensive suite of OnStar services. 4G LTE equipped vehicles also receive a 3 GB or 3-month data plan trial, whichever comes first. Here are some of the available services (available services vary by vehicle):


  • Emergency Services
  • Stolen Vehicle Assistance
  • Turn-by-Turn Navigation
  • Advanced Diagnostics
  • Remote Access through your vehicle's mobile app(myChevroletTM, myBuickTM, myGMCTM and myCadillacTM)
  • Dealer Maintenance Notification


There is no commitment and no obligation to provide payment at any time.

After your trial period ends, you can stay connected with the OnStar Basic Plan3, or choose a paid service plan, or hand pick add-on services that are right for you. Enjoy the services you're entitled to by turning on OnStar.

Simply start the process here — all you'll need is your Vehicle Identification Number (VIN). Once you have confirmed that your vehicle is eligible, push your blue OnStar button and ask the advisor to activate your 3 Months On Us trial.