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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.

Hummer EV to be sold at only about half of GMC dealerships

The new 1,000-horsepower Hummer EV will be sold under the GMC brand, but you won't find it in every GMC showroom. Currently, just about half of GMC's dealers have agreed to take on the electric truck, Buick GMC VP Duncan Aldred told investors on a conference call last week. According to Muscle Cars and Trucks, there are a number of reasons for the irregular availability. For one, there's the cost of upgrading dealerships to sell and service a fully electric vehicle. Stores would need to be upgraded with charging stations, and service centers would require new tools and training to work on an EV. Then there's the customer experience. At $112,595, the initial Hummer EV Edition 1 caters to a different clientele than the traditional GMC truck. The planned EV3X trim level that arrives in late 2022 and EV2X arriving in spring 2023 will start at just below $100,000 and $90,000, respectively. Some sellers believe that customers paying six figures for a vehicle will expect certain niceties that will necessitate showroom upgrades as well. Complimentary doughnuts, at least. Furthermore, not all GMC dealerships are located in areas with customers willing to shell out that much cabbage for a new vehicle, especially an EV. An $80,000 base trim will be available in 2024, so perhaps more dealers will be willing to take on the truck by then. Finally, there's the Hummer EV's no-haggle pricing. Aldred was adamant on the call that customers see the same price on the internet as they do on the paperwork. It's part of the premium dealership experience that GMC wants to provide for its well-heeled clientele. Still, GMC appears to have no problem moving all the Hummer EVs it can build. Even with its lofty price tag, all Edition 1 trucks were sold out 10 minutes after GMC's announcement. Related Video:

GM planning to put its fullsize pickups on a big diet, too

General Motors is just coming off a complete redesign of the Chevrolet Silverado and GMC Sierra for 2014, but in the US fullsize truck market, there is no rest for the weary. According to Reuters, plans are already unfurling for both trucks to drop pounds from their curb weight over the next few years, but this will unlikely be able to keep pace with the 700-pound diet targeted for the next-generation Ford F-150, a truck expected to debut late next year.
The biggest weight reduction for these trucks might not be available until the next full redesign, which will likely happen around 2019, but the article says that smaller updates could shave pounds in the meantime. Two examples given include an "aluminum-intensive" version of the Silverado that could shed 250 pounds and debut around the same time as the lighter-weight, aluminum-bodied 2015 Ford, and there is also talk of reducing weight for driveline components such as axles and driveshafts. These changes are all part of an attempt to meet strict new fuel economy standards coming in 2017, targets which will get even tougher in 2025.