I recently changed tires to my 2015 jeep Cherokee to different sizes and when I tried to drive it the rpms raised then the jeep won't accurate to driving speed
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You will have to have the speedometer recalibrated. There is no on-board way to to this. You will either have to take it to a repair shop who has an OBDII scanner with the proper program to recalibrate the speedometer or you can purchase one online and do the procedure at home.
The cost for a scanner that does this is usually well beyond what a DIY type person wants to spend starting at $200+ you can take it to a reputable shop who will charge you between $50 - $100 to do the same thing.
Cheers!!
Monte
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Hi @yvonnedburton
Check if there's a speedometer calibration option for the vehicle.
Speedometer reading is directly related to tyre size. Tyre size also affects the odometer reading as well.
Maybe check Jeep forums to see if there's an answer there.
- de jayeff