Join Date: Mar 2008
Location: New England '13 XTS Platinum
First off, we should probably get our terminology straight so everyone reading along can make sense of the problem and symptoms.
Any time a problem is being described --whether it's online or to a Service Writer, it's important to be very specific and include as much information as possible. Of course, not everyone is a technician, but it helps everyone trying to get to the bottom of a problem to be presented with the most proper terminology possible. If you take the time to read threads on the XLR sites, you'll be a pro in no time.
Lights don't beep. They flash. Audible alarms make sounds.
If you mean to say the Head-Up Display (what you're calling the windshield display) is showing a flashing car crash symbol and audible alarm at the same time, that indicates the Adaptive Cruise Control is warning you a detected object is closing too rapidly and you need to intervene manually. This is a normal condition; unless the cruise control is not engaged. It should have been operating this way since the car was new. If it's doing this with no cars in sight on a straight stretch of road, that indicates something else.
If it's something else, then a more descriptive explanation is needed to understand what the problem is related to. (Indicators, modes selected, external conditions, etc.) When remotely troubleshooting a problem online, you need to include as much information as possible, since there's no access to the vehicle. It also makes the tech's job at the dealership easier, --especially if the problem is intermittent.
You haven't included any technical information from your service invoice provided by the dealer. These are written up by the tech that worked on your car and relayed to the Service Writer --who may not even know what any of it means -depending on their technical background. Some dealerships rotate technicians through the front desk, others do not.
The technical narrative contained in the comments section of the invoice might make a difference to this conversation. You may (or may not) have more than one problem, but more information is required to even begin to intelligently research what's happening with your car.
Last edited by ccclarke; 07-24-2016 at 01:14 PM.