The automaker cited a parts shortage due to the strike as the reason for the plant closure.
The moves are part of GM's effort to position itself for a future of electric and autonomous vehicles.
The automaker raised vehicle prices in the U.S. to a record average of more than $36,000, offsetting declining sales volumes across every brand.
The carmakers' earnings forecast is dented by the Trump administration's steel and aluminum tariffs as well as unfavorable foreign exchange rates.
The automaker's operating results were "very strong, and actually great" in the quarter and for the full year, CFO Chuck Stevens says.
The automaker says Strobe's LIDAR sensors are a "game changer" in its effort to deploy large fleets of self-driving vehicles.
A shifting economic and regulatory environment is driving increased pension risk transfer activity.
The results "demonstrate the strong earnings power of this company,” CEO Mary Barra says as profits soar 33% to $2.6 billion.
The automaker lost its bid for review of a lower court ruling that exposes it to liability for injuries resulting from an ignition-switch defect.
The seizure of GM's only Venezula factory "was granted and enforced in total disregard of [GM's] right to due process," the company says.
The automaker has announced about 4,400 layoffs since November as it reduces production and employment due to lower U.S. sales.
"This represents another major step in the ongoing work that is driving our improved performance and accelerating our momentum,” GM CEO Mary Barra says.
