Welcome @Sharon8309. I moved your new discussion in the Auto Industry/GM News section to the existing discussion.Just wondering if anyone else has/had this issue and what did you do? Is GM stepping up to fix it
Answer is yes, over the last couple years this forum has seen a couple dozen reports as you can see here. GM won't be doing anything unless it occurs under warranty or rust through develops under warranty. Even warranty could be tough as they could claim abuse or neglect. It isn't a safety thing so will never be a recall.
There are some existing lawsuits involving the 2015-2019 Tahoe, Suburban, Silverado, Yukon, and Sierra but I haven't seen the Malibu added yet. There had been a class action lawsuit for the potential of the pedal position sensor failing causing an accident but that lawsuit was recently dismissed. These things take a long time and rarely get tangible results for the consumer. Always possible. You could search the web and find the attorneys currently handling the existing lawsuit and see about getting yourself added as the Malibu owner Plaintiff.