Jaywoo
Senior Member
- Joined
- Jan 19, 2014
- Posts
- 179
- Reaction score
- 329
- Location
- Ward, AR
- Ram Year
- 2021 & 2018
- Engine
- Hemi 5.7 & Cummins
Can the 2018 models be adjusted? I read somewhere on here they could not. I did however inflate to 80 then dropped them back down to 70. Seems to let you get away with that but idk how much more until it sets the light off. I will likely never have maximum load on this truck so id love to lower the pressures.
Yeah, you need a way to get around FCA's security module. I put in one of these:
https://www.infotainment.com/products/fca-security-gateway-module-bypass
After that you can do whatever you want with the programming.