The first recall affects 466,940 Chevrolet Silverado and GMC Sierra (2014-2015) pickup trucks as well as Chevrolet Tahoe/Suburban and GMC Yukon/Yukon XL (2015) SUVs. The transfer case may electronically switch to neutral without input from the driver, so dealers will recalibrate transfer case control module software.
The second recall involves the windshield wiper module assembly in 4,794 Chevrolet Caprice police cars (2013-2014) and Chevrolet SS sport sedans (2014) sold in the U.S. If the motor gear teeth become stripped, the wipers may not operate.
Finally, 1,972 Chevrolet Corvettes from 2014 (including 33 in Canada) need to have their two rear shock absorbers replaced due to a possible insufficient weld that could lead to a fracture and/or reduce the shocks' service life. No incident has been reported so far.
As previously mentioned, GM has now recalled an industry-record 20+ million vehicles this year. With new CEO Mary Barra, the company just doesn't want to take any risks.