|11-24-2010 10:41 AM|
Heh Heh, thats because they have to reprogram the JK CPU, inaccordance with CHRYSLER EDICT-and I think the majority of dealers will stop at the biggest tire the JK comes with (32") !!
Then your warranty is BYEBYE
Just get the AEV Procal Module, it'll fix A LOT !
|11-24-2010 09:35 AM|
|11-24-2010 09:30 AM|
|JackdUp||Daggo, they will reprogram for the oversized tires since I bought it like that at their shop. If they can't, then yes..... I will most likely invest into a programmer.|
|11-24-2010 09:29 AM|
ROFL... better question- how is it that I have access to a more capable programmer than a MOPAR shop... seems kinda silly on their part...
|11-24-2010 09:23 AM|
|daggo66||It's been said that they can't/won't program higher than a 33" tire. Why not just buy a programmer and do it yourself?|
|11-24-2010 09:14 AM|
2007 and Newer: Speedometer Calibration Information
Took the 2007 in to where I purchased the Jeep and set up an appointment to view the tire sizes currently programmed in vs what I actually have on the vehicle. As many of us know, if you change out stock size wheels and tires and replace with larger wheels and/or oversized tires, the ECU/CPU must be reprogrammed to show the correct wheel/tire sizes, or your speedometer and true mph and mileage will be off.
After speaking with the lead service manager who set up my appointment, he said its easy, depending on the year and then asked what year it was. I responded with 2007. He then followed with "It all depends on the sizes...."
He went on to explain that their abilities to input/change the data for 2007 and newer was severely limited and they may not be able to input the exact sizes because of that new limitation. He said there may be 5 or less options to choose from, but he couldnt tell until he got the Jeep and plugged it in.
Has anyone else heard of this? Is it a new safety or performance limitation imposed to prevent/discourage oversized tires beyond what is deemed appropriate to the tolerances of driveline/suspension components of the Jeeps 2007 and newer?
He said he may get it closer, but for exact ratios, I would need a programmer.
Can anyone chime in on this whether it is fact or not and why their abilities to adjust freely may have been limited?