Hey all - I have a 2018 Malibu LT and noticed a split on the 3rd brake light. My friend has a 2016 and his crack is much deeper - any info on this by any chance?
Usually the same spot. Batches with a manufacturing defect, over torque at the factory, who knows. Only fix is replacement because it will eventually leak if it isn't already. Stop lamp with gasket kit, fasteners if you want to replace, and 30 minutes of your time to fix. You can use the 3rd brake light/CHMSL program bulletin for step by step instructions and part numbers if you want to DIY.