General Motors has issued a recall of 3.4 million pickup trucks and SUVs in the US in order to fix a problem with brakes in the vehicles. The issue has resulted in 113 accidents and 13 injuries, although no fatalities have been reported. The recall includes 2014-2018 model year Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, and GMC Yukon vehicles for a condition related to increased brake pedal effort. In rare circumstances, these vehicles may have a condition in which the engine-mounted mechanical vacuum pump output may decrease over time, decreasing the amount of brake assist. In other words, the vehicle becomes much harder to stop. Dealers will recalibrate the electronic brake control module at no cost to customers.