My complaint:
Washed the car normally with a wand. Started up and for the first time got a Service Side Detection message. In research I have found out that the failure of the sensors and modules is very common due to water getting into the components. For a time this was a problem that Chevrolet would pay to correct as it was an obvious design failure. Now they just ignore it. Car in 2017 Impala LT
Suggested solution:
They should pay a dealer to correct this at no cost. Not much to ask when it is their problem and very common.