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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.

Cadillac tops Tesla in Consumer Reports semi-automated driving test

General Motors' Cadillac outscored Tesla in a new ranking of partially automated driving systems tested by Consumer Reports and released on Thursday. The highly influential nonprofit organization, which tests and rates a variety of consumer products from appliances to vehicles, said it compared Cadillac's Super Cruise and Tesla's Autopilot with similar systems from Nissan and Volvo. Nissan's ProPilot Assist was ranked third and Volvo's Pilot Assist fourth. Consumer Reports said it has been testing partially automated driving systems for several years but elected to conduct a formal study intended for publication, because "we are at a tipping point where they are now going mainstream," according to Jake Fisher, director of auto testing. The organization said its tests, conducted on a private track and on public roads in Connecticut, were designed to measure the systems' ability to automatically control steering and speed in certain situations, while helping drivers pay attention and regain manual control of the vehicle when required. CR noted that any of these systems can increase driving risk if used in inappropriate situations, or if drivers become inattentive or over-reliant on them. While they can help relieve driver stress and fatigue, Consumer Reports said, the partially automated systems are "not intended to be self-driving features." The systems typically use cameras, radar and other sensors, as well as mapping data, to monitor location and traffic conditions and help keep a vehicle centered in the lane at a safe distance behind other cars. Each system has limitations. Cadillac's Super Cruise, for instance, only functions on divided highways that have been mapped by GM. In contrast, Tesla's Autopilot can be used even on small, curvy roads with poor lane markings, but "operates erratically in those situations," Consumer Reports said.The organization tested Super Cruise on the Cadillac CT6; Autopilot on the Tesla Model 3, Model X and Model S; ProPilot Assist on the Nissan Leaf and Infiniti QX50; and Pilot Assist on the Volvo XC40 and XC60. Consumer Reports said Cadillac's Super Cruise did "the best job of balancing high-tech capabilities with ensuring the car is operated safely and the driver is paying attention." Tesla's Autopilot was cited for its capability and ease of use, while Nissan's ProPilot Assist did a better job than Autopilot or Volvo's Pilot Assist in keeping drivers engaged.

2020 Cadillac XT6 Review & Buying Guide | Sneaking in through the back

The 2020 Cadillac XT6 is arriving late to the party, literally decades after some of its rivals. It's a new, three-row luxury crossover that serves as a much-needed, more-modern and less ostentatious family hauler than the Escalade (which is getting overhauled next year, by the way). The question about the XT6, then, is it fashionably late? The XT6 is indeed quite handsome and refined -- we thought it looked particularly excellent in one our test car's Red Horizon Tintcoat. There's a classic sophistication to it that evokes Cadillacs of the 1960s rather than the overwrought and borderline-tacky designs of other eras (including recent ones). We think the exterior design will age quite well, especially in light of some competitors. However, we're also not sure it's distinctly a Cadillac. Worse, the interior is drab, unimaginative, and blighted with unremarkable materials. A Volvo XC90 and Lincoln Aviator instantly look and feel more special, while a range-topping Hyundai Palisade isn't as far behind as the price gap would indicate. The driving experience also leaves something to be desired. Besides the ho-hum engine, the XT6 has neither the sharp handling of Cadillac's recent sedans nor the stately ride comfort one also might expect given the brand's past. Overall, the XT6 sneaks in through the back of the party rather than making a grand entrance; an unremarkable effort in a toughly contested segment. What's new for 2020? The XT6 is an all-new model and fills a gap in Cadillac's lineup. What's the XT6's interior and in-car technology like? Answering this question is all about perspective. In a vacuum, the XT6 interior seems nicely put together, its leather is soft and features are in abundance. The range-topping trim's gold carbon fiber trim is particularly interesting. If you sat in one after a Buick Enclave, the step up would be obvious. However, come from a Lincoln Aviator or Volvo XC90, to cite two excellent examples of the breed, and the difference is stark in terms of design and materials quality (there are too many hard plastics throughout). The XT6 quite simply isn't as cool, isn't as luxurious and doesn't seem to justify its price tag. At least features content is strong with six USB ports, wireless charging, Android Auto, Apple CarPlay and satellite radio all included along with a panoramic sunroof and various driver assistance technologies. Other brands nickel-and-dime you with this sort of content.