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2015 Chevy Silverado, GMC Sierra recalled for steering issues

DETROIT — General Motors Co is recalling more than 1 million pickup trucks and sport utility vehicles in the United States due to issues with a temporary loss of power steering, the National Highway Traffic Safety Administration said. The recall is for 2015 models. They are: the Chevy Silverado 1500, Suburban and Tahoe, GMC Sierra 1500, Yukon and Yukon XL and Cadillac Escalade. The problem may cause difficulty steering the vehicle, especially at low speeds, increasing the risk of a crash, the auto safety regulator said in a document dated Sept. 12. The document did not highlight any reports of accidents and injuries, because of the power steering issue. GM dealers will update the power steering module software, free of charge for owners of the affected vehicles. In 2014, the No.1 U.S. automaker had recalled nearly 800,000 pickup trucks worldwide because of the same problem. GM did not immediately respond to a request for comment.Related Video:

Super Cruise’s failsafes

Even though Super Cruise is not a fully autonomous system, it incorporates redundancies like those used in aircraft to ensure failsafe operation. Before taking off on a 700-mile, 11-hour test drive of the system — and putting my life in its hands without my hands on the wheel — I sat down with Daryl Wilson, lead development engineer for Super Cruise, to get a deep dive into the system and its critical safety backups. Autoblog: First, what makes Super Cruise different from similar systems? Wilson: The key differentiator for Super Cruise is hand-free driving. It's an industry first in that respect. Our competitors require the driver at minimum to place their hands on the wheel with some frequency to ensure that the car knows that the driver is there. We don't. Two key technologies allow us to do this. One is our Driver Attention System, which is our methodology for making sure the driver is engaged with the vehicle and engaged with the road. This is a driver assist system, not a fully autonomous system. So it requires driver engagement. We use an infrared camera that constantly monitors the driver's face to determine the direction they're looking. We're looking for the driver to be what we call on-road — not on the center stack, not to left or right or down. That's all done by the tracking of the face. We also track that the eyes are open. It's infrared because at night you need to illuminate the face and you can't be shining a light into the driver's face. Then we have our lidar mapping that provides a foundation for control and redundancy to ensure safe performance. Autoblog: How does the mapping act as a redundant feature? Wilson: This system is only for use on divided, controlled access highways. What I mean by a divided highway is something more than a painted line between you and oncoming traffic. Whether that's a grassy area in between the lanes or a concrete barrier, anything that separates you from oncoming traffic. That's the divided highway part. The controlled access part is entrance ramps and exit ramps. Not with roads that cross at grade, with traffic crossing at the same level. To do that we geofenced these roads to ensure that operation is only allowed in these conditions. We don't just recommend you use it there; we ensure that you only use it there.

Cadillac CT6 refresh has hints of Escala

Almost a year after Cadillac showed its stunning Escala concept at Pebble Beach, we're finally seeing some of that car's influence on production cars. These spy shots reveal that the CT6 will undergo a mild refresh, and despite the camouflage, we can make out details that show it will have looks more in line with the concept. One of the defining characteristics of the Escala were narrow, horizontal headlights, while the current CT6 has long, vertical lamps that go up the tops of the fenders. This prototype seems to split the difference. The bases of the lights terminate higher up on the fascia, emulating the Escala, but still travel up the fenders. It also appears that the LED accent lights remain, but it's possible they've been separated from the main lamps to become more like the concept. The grille has also been revised. It's hard to make out the exact shape, but the insert is the same type of mesh as the Escala's, with little highlights that look like miniature Cadillac crests. The full-size, full-color crest also appears to sit higher in the grille, which is another nod toward the concept. The lower grille in the front bumper also looks larger and more angular. That doesn't really lean toward either model, but should give the car an edgier look. The rest of the car looks generally the same as the current model. Even the tail shows little indication of changes. It's possible that the rear taillights could have an Escala-like horizontal section at the top of the trunk lid, but there's nothing visible on this prototype that would confirm that change either way. Since this is a relatively mild refresh, we would expect to see it fully revealed early next year. Related Video: