2017 Limited TRD LT275/70R18 Tire pressure

Greeting from NY,

I just installed a leveling kit (Supreme Suspension 2" Pro Billet Spacer), power coated my original OEM TRD Off Road rims Black & BFGoodrich All-Terrian T/A KO2 (LT275/70/R18).

The only rubbing I had was from one side of the front skid plate, when turning hard left. (Fixed by bending the plate up. No rubbing now!

Here's the questions I have for you guys:

1. What tire pressure should I have my LT275/70/R18? Front & Back?
2. Will changing the pressures cause the TPMS to have any errors?


Thanks,
Rob

 

It's going to depend on the load rating of the tire (each (C,D,E) will be different) and the weight of your rig (with MODs and such)... Chalk test is the best way to be sure you're getting even wear. Here's an online reference for air pressure adjustments for a change in tire size/load rating (you'll just need to know what you were running w/OE tires and the new tires' specs); it's pretty good as resource and generally fairly accurate. Answer to your second question would be 'no' as long as they were calibrated properly at install and your air pressure changes are consistent w/all 4 tires

 

1. Welcome
2. i like the color and setup of the truck and it makes me miss my 2017 i had
3. run the tire pressure about 35psi +/-. doing the chalk test will do wonders to help you determine according the the weights you run in your vehicle. i've run about 35-40psi on my stock KO2's as well as my 325/60R20 KO2's and rotated every 5k miles like i typically do for all my vehicles and tires. wore evenly and wasn't like driving on rock wheels!
4. changing pressure should affect TPMS really unless you need to reset your setup. check out the manual. i believe you do something like set your pressures where you need them, then do the reset button underneath the steering column, but DO NO QUOTE ME on that.

 

I normally run my Load range E tires at around 43-45psi, and load range C tires around 40psi.
but YMMV depending on the load.