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GM alerting truck and sedan owners to a do-over on brake recall

A recall campaign intended to address issues with braking systems on certain 2019 General Motors trucks and sedans may have introduced a new issue, the automaker has acknowledged, and thousands of owners driving repaired vehicles may need to return to their service departments for another update.  The update addresses a fix that was pushed out to owners of more than half a million brand-new GM trucks and sedans that could potentially lose partial braking function, according to the Detroit Free Press. The original software fix helped address situations where the vehicles' anti-lock braking systems would become disabled, which in turn would prevent electronic stability control from activating. Vehicles subject to the recall would often experience software glitches that prevented them from properly communicating the operational state of these systems, meaning drivers would have no idea that their brakes may not behave as expected in an emergency. The 2019 Chevrolet Silverado 1500, Cadillac CT6, and GMC Sierra 1500 were all recalled in the original campaign.  Unfortunately, the early version of this fix appears to have introduced yet another software glitch, indicating that the original fix did not do the trick. Those who have not yet had their cars serviced can rest easy; they will only receive the most up-to-date version of the software fix.  Related video    

Cadillac ATS sedan is in its last year

Cadillac has just confirmed that the ATS Sedan dies at the end of the 2018 model year. In an e-mail to CarBuzz, spokesman Donny Nordlicht wrote, "Production of the ATS Sedan is ending due to extensive plant upgrades, expansion and re-tooling to prepare for the next generation of Cadillac sedans." The admission confirms several months of deduction based on a document trail put together by The Truth About Cars. Last December, TTAC reported that General Motors didn't list a 2019 Cadillac ATS sedan on VIN documents submitted to the National Highway Traffic Safety Administration. Only the coupe remained, the presumption being that 2018 would be the last year for the sedan. That presumption was bolstered by industry sleuth Bozi Tatarevic's discovery this week that GM hasn't included the ATS sedan in the carmaker's fleet order guide. The death of the four-door ATS won't surprise anyone paying attention to statements from Cadillac or ATS sales figures. Brand then-president Johan de Nysschen strongly hinted last summer that three sedans would bite the dust come 2019, and one would be refreshed. We've seen the gussied-up CT6, so that put the XTS, CTS, and ATS in the funeral home. The XTS would die an unavenged death, while the CTS downsized into the properly midsized CT5 and targeted buyers in the $35,000 to $45,000 range, overlapping with $34,595 ATS sedan pricing by doing so. The ATS would go on hiatus, eventually resurrected as a compact luxury offering possibly called CT3 in coupe form and CT4 as a sedan sometime around 2020. As for the market situation, ATS sales are up 7.3 percent in the U.S. through the end of April this year compared to 2017. However, the ATS sold only 13,100 units in the U.S. in 2017, compared to 21,505 units in 2016 and a high of 38,319 in 2013, its first full year on sale. Assuming new Cadillac president Steve Carlisle stays the predicted course, GM might keep the ATS Coupe as a lure to sporty buyers in the segment until a possible CT5 coupe arrives. Otherwise, Nordlicht's e-mail said "Cadillac's future sedan portfolio will consist of three sedans, positioned in different segments and clearly differentiated by size and price." The 2019 ATS Coupe will stick with its three current engines, the 2.0-liter turbo with 272 horsepower and 295 pound-feet of torque, the 3.6-liter V6 with 335 hp and 285 lb-ft, and the 3.6-liter twin-turbo V6 in the ATS-V with 464 hp and 445 lb-ft of torque.

GM's Buckle to Drive teen safety feature comes to more models for 2021

In 2014, GM announced a feature called "Belt Assurance," which would prevent a vehicle from being shifted out of park until the driver and front passenger had buckled their seatbelts. Initially launched on certain fleet vehicles in 2014, the feature rolled out as a free option on the 2015 GMC Sierra, Chevrolet Colorado, Cruze and Silverado. At the time, GM said it would push Belt Assurance to more models if customers took to it. That appears to have happened; come 2019, GM repackaged Belt Assurance as Buckle to Drive, part of the automaker's Teen Driver System that bundled tech such as geofencing and speed limit warnings to help parents keep track of their children's driving habits. In that implementation, the system only works when Teen Driver Mode is activated, locking out the shifter and muting the radio for 20 seconds or until the seatbelts are buckled, whichever comes first. The system shows a visual warning in the gauge cluster, too.  For this model year, the Teen Driver System came standard on 10 Chevy models, but Buckle to Drive was only allotted to the Colorado, Malibu and Traverse. Later this year, the 2021 Camaro will join the Chevys outfitted with the Teen Driver System and will get Buckle to Drive in addition. GM Authority reports that for the 2021 model year, Buckle to Drive will also be picked up by the Cadillac CT4 and CT5. Previously, the Cadillac ATS, CTS, Escalade and XTS came with the Teen Driver System, but three out of those four vehicles are no more, and the 2021 Escalade makes no mention of the Teen Driver System nor Buckle to Drive among its safety features. Elsewhere around the GM empire, the Buick Envision and Encore GX include the Teen Driver System, as do six GMC vehicles, but it's not clear when any will be upgraded with Buckle to Drive. The tech could help save numerous teenagers' lives. On its page of teen crash facts, the Centers for Disease Control and Prevention writes that roughly 300,000 teens between the ages of 16 and 19 ended up in emergency rooms to treat crash injuries in 2017. Furthermore, "only 58.8% of high school students always wore seat belts when riding as passengers," and, "Among young drivers aged 15-20 who died in car crashes in 2017, almost half were unrestrained at the time of the crash (when restraint use was known)." Related Video: