On 1995 and newer Suburbans, the hidden VIN is typically located on the
driver's side dashboard, usually visible through the windshield. It's often stamped on the metal near the area where the dashboard meets the firewall. You might need a flashlight to see it clearly.
While that's the most common location, it's *always* best to check your Suburban's owner's manual for the precise location if you have it. The location *could* vary slightly depending on trim level or specific model year.