BOSTON — Daimler Truck is updating its sales and financial guidance for the year and launching a share buyback program, moves the company said are buoyed by its business momentum.

LAS VEGAS — The leader of Daimler Truck North America’s autonomous technology division said the path to self-driving trucking will advance through partnerships like those her company has forged, and believes the outcome of such collaborations will ultimately benefit motor carriers.

SelecTrucks, a brand of Daimler Trucks North America, announced expanded component coverage and a new warranty concierge program for its used trucks as it enhances its 60-Day Buyer’s Assurance coverage.

SelecTrucks announced the opening of its newest location in Texas, SelecTrucks of Texarkana, on the border of Texas and Arkansas.

Proterra Inc., which makes electric buses and batteries, agreed to go public through a merger with special purpose acquisition company ArcLight Clean Transition Corp.

Daimler Trucks North America will pay a $10 million fine and change how it recalls trucks after an investigation by federal safety regulators that found it did not recall vehicles in a timely fashion and comply with other reporting requirements.

The used Class 8 sleeper market is showing signs of a rebound, said Mary Aufdemberg, president of Daimler Trucks Remarketing.

Daimler Trucks North America is making headway on a yearlong customer service improvement initiative as it works with dealers to have parts and technicians ready to go when a broken truck reaches the service bay.

Meritor Inc. and Daimler Trucks North America announced that Meritor EX+ LS air disc brakes will be standard on all wheel positions on Freightliner Cascadia truck models through 2025.

Daimler Trucks and Waymo have announced an agreement to produce highly automated Level 4 commercial vehicles by combining Daimler’s trucks with Waymo’s technology.