Q: My blinde spot monitor and Driver Assist are off and they will not let me turn them back on. I have two messages saying they neede

The car wash could just be coincidental to the failure or it could represent a source of water intrusion in an electrical connector and that has caused the two systems to malfunction. The two systems are electrical in nature and the service message means there are probably diagnostic trouble codes stored. If there are codes, once those codes are downloaded and interpreted, it will narrow the focus of the diagnostic. To obtain a speedy resolution to this problem that you are writing in about, the recommended service is an electrical diagnostic. If you request that service, the responding certified mechanic will diagnose the problem and resolve it, right at your location. If you have further questions or concerns, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you to get the best possible results.