cbsummers

2018 F-150 Stx with the FX4 package. Upon start up beginning today I get multiple messages on the display. Hill decent Control Fault, Service Advance Trac, Hill Start Assist Not Available, and when trying to change the drive mode I get Drive Mode Not Available. Also the ABS light is on. It's the 5.0 engine with about 78k miles. I have an appointment with the dealer on 7/3. Any ideas as to what's going on here???

Thanks in advance.

Hopey

Try a new battery.

52merc

Or a problem with a wheel speed sensor.

artsr2002

Walk around your truck with the hazards on and make sure all lights are working properly as well. Light bulb outages can sometimes cause weird errors on these trucks.

SpencerPJ

What is condition of battery? I would start there,

BadAV

You are just spitballing without getting the OBD codes. That said, if the battery is still original, it may be giving up the ghost. Today's vehicles that are rolling computers do many strange things when battery voltage gets low.

cbsummers

The battery is only a couple of years old. However, it was an Auto Zone Battery that the original was replaced with. It supposed to be the battery type as the original. After it was replaced, the Auto/Start/Stop quit shutting the truck off when I came to a stop. (Felt that was a bonus) I do have one blinker light out in the rear, but I find it hard to believe that would cause this much trouble.
The truck is scheduled for service on 7/3... but I don't know if I should continue driving it until then.

artsr2002

Replace the bulb and see what happens.

2008__XL

If you put a new battery in and auto s/s stopped working at that point, that’s a good place to start.

Is it an AGM?

Taggart

Sounds like the battery. Have it tested. If you make a lot of short trips, you might need to charge it with a battery tender once in a while to keep it fully charged. Auto Start/Stop not working is a symptom of low voltage (you can confirm by bringing up A.S.S. in your IP display and seeing what it says when you stop at a light).