Acadia SUV will watch for open and closing after vehicle starts, or doors open during running.
Initiative will create more than 700 new engineering jobs.
Reports say positions will eventually be spread out at a number of GM R&D facilities.
App-based service started in Ann Arbor, Michigan.
Automaker to create up to 800 jobs at the Spring Hill Manufacturing Plant, near Nashville.
Shutdowns also include assembly plants in Tennessee, Ohio and Kansas.
Follows assessment of its Chinese-made Sail which earned zero stars in latest tests.
Plastic flake is also being used as insulation to make coats for the homeless.
Firefighters found a very small leak or spill into the creek.
The automaker says a on a pivot mechanism can come loose, causing the brake pedal to loosen and possibly become inoperative.
Annual profit forecast to $19.5 billion from $19.2 billion.
49,600 hourly workers will get $11,000 profit-sharing checks on Feb. 26.
Trial is one of six scheduled to narrow legal issues to settle cases of more than 1,000 people
Barra replaces Theodore Solso effective immediately.
Companies planning network of US hubs where Lyft drivers can rent GM vehicles.