The TSB (N202309750) indicates that 2020 model year GMC Acadia and Chevy Malibu units equipped with the optional eight-inch Diagonal Multi-Color Driver Information Center (RPO UHS) may change the radio station/audio track without customer input. In response, dealers will reprogram the instrument cluster, the automaker said, which will remedy this issue.
The eight-inch UHS Diagonal Multi-Color Driver Information Center is an optional, full digital driver’s display that is available in certain GM vehicles, including the 2020 model year Acadia and Malibu. The configurable, full color display incorporates the speedometer and tachometer and can also display warning messages and other vehicle information such as estimated mileage or oil life, for example. In the GMC Acadia, the display is only offered on the Denali trim level, where it comes standard. Similarly, the only way to get the full color cluster display in the 2020 Chevrolet Malibu is to opt for the range-topping Premier trim.
GM has had similar bugs with other in-vehicle display screens in recent months, as well. The automaker issued a fix over a bug pertaining to the favorites menu in certain Buick, Cadillac and GMC vehicles last November and is also facing a class-action lawsuit over alleged problems with the IOR 7-inch radio in certain 2019 and 2020 model year vehicles. While not related to software, the automaker was also sued last year after customers complained the CUE infotainment screens in some Cadillac vehicles were prone to cracking.
Newer GM vehicles running the automaker’s Global B electric architecture can take advantage of over-the-air updates to address potential infotainment bugs such as this. Neither the Acadia or Malibu run off of Global B, however, so customers affected by this issue will have to bring their vehicles into a dealership to have them repaired.