You are NOT "contractually" obligated to bring your car into a Chevy dealer for service.
You are only contractually obligated to maintain the car in "good order and repair" and"maintain and keep in the vehicle a record of all maintenance performed on the vehicle. " This is stated in Paragraph 23 (g) of my GM financial lease agreement.
However, the only maintenance required for the Bolt is a tire rotation every 7500 miles and a new cabin filter every 2 years or 22.5k miles. You can do the tire rotations yourself or at any America Tire location for free and you should only have to replace the cabin air filter once during the lease (it's really simple to do).
FWIW, I've leased many vehicles and, while I always serviced the vehicles as recommended, I never had anyone check the "service history" of any vehicle that I returned. They just inspected the vehicle for mileage, tire wear, body damage and general operation. As long as it all checked out, I was NOT assessed any additional fees after the return.
So, I wouldn't worry about the service requirements under the Bolt lease.
2012 Mercedes ML350 4Matic
2008 BMW 335i
2002 Toyota MR2 Spyder
2002 Ford F250 7.3L 4x4 Longbed Turbodiesel
2000 Porsche 911 Carrera 4 Cabriolet