Wayne Ellison

I purchased in 2018 a Grand Cherokee High Altitude. Almost immediately I installed Nitto Terra Grappler tires which are 1.4 " in diameter larger than the OEM tires. All is great, except I could not fit the same size tire in the spare wheel well. I am concerned about the Quadra track traction system coming into effect when I have the smaller 1.4 " (-4.6%) tire installed, after a flat tire. Does anybody know at what differential tire speed does Quadra track become enabled? Alternatively, Is there a fuse I can temporarily remove to disable just the ABS solenoids? Thanks, Wayne

Wayne Ellison

I removed the ABS and traction control pump fuse, drove the car around the block, abs and traction control lights came on. reinstalled the fuse but lights stayed on. I have no error codes on my scanner and a scanner reset did not turn off the lights. My ABS is still disabled. How do I reset the abs system???

Wayne Ellison

Had to drive the car awhile to get the abs lights to go off, so all is well. I had a solution to the somewhat smaller spare tire.