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Sync system issues

JimC

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Location
Howell, MI
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2024 Mustang GT
I had a a "power train malfunction" alert last Friday, then on the next start up "hill start assist not available" and the traction control alerted that it wasn't functioning. But the power train malfunction was gone. After a short drive the hill start and traction control were working fine. On Monday the dealer said there were no codes and couldn't find anything wrong other than the battery was not fully charged. This was after driving it for 75 miles on Saturday.

Now I have issues withe the dash defaulting to the sport screen rather than normal screen, despite the setting showing it is to be set to the current driving mode. It "forgets" that I have the HVAC set to dual control and goes back to single control. This afternoon it was showing a Waze splash screen in the map section and wouldn't go back when I hit "home". The personal profile, despite being set to the normal screen keeps going to the sport screen.

I'm thinking that there may be an issue with the alternator. I drive enough that the battery should be fully charged. I noticed the gauge showed 12 volts while I was driving, going up to 14 at times.

So very similar to the experience of the OP on the dash settings for me.
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Zig

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Virginia
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‘24 F350 cclb drw fx4 6.7ho, ‘24 gt pp, ‘05 c6 f55, ‘01 fatboy, ‘03 sprtstr
I had a a "power train malfunction" alert last Friday, then on the next start up "hill start assist not available" and the traction control alerted that it wasn't functioning. But the power train malfunction was gone. After a short drive the hill start and traction control were working fine. On Monday the dealer said there were no codes and couldn't find anything wrong other than the battery was not fully charged. This was after driving it for 75 miles on Saturday.

Now I have issues withe the dash defaulting to the sport screen rather than normal screen, despite the setting showing it is to be set to the current driving mode. It "forgets" that I have the HVAC set to dual control and goes back to single control. This afternoon it was showing a Waze splash screen in the map section and wouldn't go back when I hit "home". The personal profile, despite being set to the normal screen keeps going to the sport screen.

I'm thinking that there may be an issue with the alternator. I drive enough that the battery should be fully charged. I noticed the gauge showed 12 volts while I was driving, going up to 14 at times.

So very similar to the experience of the OP on the dash settings for me.
At times a bad battery will take a charge but not hold a charge.
 
 








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