WRENCH LIGHT COMES ON WHEN iM ON THE FREEWAY
The wrench light comes on when Im on the freeway, usually after 5 minutes. I have no issues except lower gas mileage. Recently had the oil changed, didn't make a difference. had a mechanic reset it, came back on. It doesn't do this on the streets. I haven't lost any power, it shifts fine. Vehicle is a Ford Explorer Sport Trac 2008
Then there is something wrong, you need to drive it until the light comes on then have the codes pulled, most parts stores can do this and it’s free. You may need further diagnosis but at least you will have the codes and what system is causing the light.