Lincoln MKZ Hybrid 2012 149000 km.

In the city, the hybrid and EV mode works normally.

But tonight, on the highway, on a 100 km drive, the gas engine was revving very high - 4 bars on a possibility of 6 - and it was not recharging the battery. I was driving at 110 km/h and it was -7C outside. Normally, when driving at that speed, it doesn't rev that high.

As soon as I got in the city, at lower speeds, it started acting normally, using the EV engine and recharging the battery.

One month ago, I did reset the battery age using Forscan, as I was having issues when accelerating fr a stop. It immediately solved the problem.

Since then, everything has been going well, except on that drive that I just did tonight. Earlier today, when I did the same drive on the other way, everything was fine on the highway.

Any idea what could be going on?

 

Not too many places have access to the info required to do repairs on these systems.
You may need to have a dealership check this out.