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GM recalls 3.8 million vehicles in North America due to braking issue

WASHINGTON — General Motors Co said Wednesday it was recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more difficult and that has been linked to 113 accidents and 13 injuries. The recall covers 2014-2018 model year vehicles, including some Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, GMC Sierra, Chevrolet Suburban and GMC Yukon vehicles. In late June, GM recalled 310,000 vehicles in Canada for the same issue. GM did not immediately explain why the Canadian recall occurred more than two months before it called back the vehicles in the United States. The recall was triggered because the amount of vacuum created by the vacuum pump may decrease over time, GM told the National Highway Traffic Safety Administration (NHTSA) in documents posted on Wednesday. The NHTSA opened a preliminary investigation into the issue last November, and said it had reports of nine related crashes and two injuries. It provided GM in July with additional field reports that prompted the automaker to open an investigation. GM said it could affect braking in "rare circumstances." The NHTSA said in a statement the "vehicles may experience brake boost failure, which would require increased brake pedal effort, leading to a hard brake pedal feel, and potentially increased stopping distance." GM said dealers will reprogram the electronic brake control module to improve how the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted. GM said the vacuum assist pump, which is lubricated with engine oil that flows into the pump through a filter screen, can in some cases lose effectiveness over time, as debris such as oil sludge can accumulate on the filter screen. GM told NHTSA that prior model years used a different brake assist system design, and vehicles manufactured after 2018 were not equipped with the affected pump design. Separately, GM said on Wednesday it is recalling 270,000 additional U.S. vehicles in three smaller recalls, including 177,000 2018 Chevrolet Malibu cars with 1.5L turbo engines because an error in the engine control module software may result in the fuel injectors being disabled.

Overland Expo's GMC Sierra AT4X is an Aussie-style ultimate overlander

Overland Expo is a caravan of companies producing everything one could need or want for overlanding. So what better what to showcase the kind of hardcore overlander possible by dipping into that parts caravan than to build just such an overlander? That's what the Expo did in creating its second Ultimate Build, based on a 2022 GMC Sierra AT4X. Overland Expo said it chose the Sierra for the 6.2-liter V8 with 420 horsepower and 460 pound-feet of torque because it wanted to "go bigger and more extreme" than its first build last year, which was based on a Toyota 4Runner TRD Off-Road. This Sierra trim was chosen over its AT4 sibling due to the extra dose of rugged, like the Multimatic spool dampers that provide about an inch more suspension travel front and rear, and the front and rear locking differentials. The Denali-like luxury isn't a bad thing to have, either. The only performance mods are a MagnaFlow cat-back exhaust, Firestone Ride-Rite air springs at the bag and 17-inch Icon Dynamics wheels on 33-inch 33 Firestone Destination Mud Terrains replacing the stock 18-inchers on Goodyear Wranglers.   Rig builder Mule Expedition Outfitters tapped more than 21 exhibitors for components, and spent "hundreds of hours" putting them all together seamlessly. The most eye-catching swap comes from the MITS Alloy three-foot canopy and tray that replaces the pickup bed. MITS is an Australian company, hailing from the land that also gives us overlanding powerhouses like ARB and Old Man Emu, and this is a popular outback-style rig. In addition to the storage areas on the sides and underneath, the canopy holds a Dometic refrigerator, Green Goat Outdoors camp kitchen and an eight-gallon water can that feeds a Geyser Systems shower. A solar panel on the roof routes power to a pair of lithium-ion batteries in the canopy as well, their output controlled by a Redarc RedVision Manager30.  There are plenty of Rigid lights for avoiding trouble, and a Forrest Tool Max Tool Kit plus GoTreads for when trouble inevitably appears anyway. The crew cab should hold plenty of gear, but anything else that needs to be stored outside will go in a set of 3D dry bags.

GM plans to restart production in Mexico on May 20

MEXICO CITY — General Motors is tentatively planning to restart operations at its auto assembly plant in the Mexican city of Silao on May 20, according to a message to workers seen by Reuters on Sunday, as the car industry prepares to exit the coronavirus lockdown. Separately, the president of GM's Mexican unit advised suppliers to prepare to resume operations. “We are now beginning a new phase given the Mexican governmentÂ’s official announcement earlier this week to consider the transportation manufacturing industry as essential for the countryÂ’s economy,” Francisco Garza, president ofGeneral Motors de Mexico, wrote in an email to suppliers dated on Friday that was viewed by Reuters. The reopening of the plant  in Silao would be a positive signal for the auto sector in North America, whose supply lines are highly interconnected between the United States, Mexico and Canada. The plant in the central state of Guanajuato has been idled for weeks due to the coronavirus outbreak. Workers had previously been told to plan to return to their jobs on May 18. A GM spokeswoman said the company could not confirm when it would restart operations at any of its facilities in Mexico because it is awaiting more guidance from the government. The message to the plant's workers came after the government on Friday clarified when the industry could begin easing restrictions imposed because of the health emergency. On Wednesday, the government said automakers could start going back into production from May 18. It then withdrew that advice and suggested the new start date would be June 1. Finally it indicated the sector, which forms the backbone of Mexican manufacturing, could begin operating as soon as next week if companies had the required safety measures in place. U.S. officials and its auto industry have pressed Mexico's government to get its factories open again because American operations depend heavily on parts from south of the border. However, some politicians are wary of opening too fast. Mexico registered its first case of coronavirus weeks after the United States and Canada and the toll of daily infections and deaths in the country reached new peaks over the past few days. The Silao production facility, which makes highly profitable pickup trucks for GM, is one of the biggest automotive plants in Guanajuato, a major Mexican carmaking state. Related Video: