Rear Axle TPMS 3500 SRW

[NDanecker]

At what tire pressure does the rear TPMS give alerts for low pressure? I have at 50 and while it rides better I cannot deal with the error message every time I get into truck. Thought I was stronger than that but nope. I am caving. LOL

TIA.

 

[sstoner911]

I think its 20% or so...put them at 66 and see if it goes away. Unfortunately unless you can convince a dealer(seen some they have been able to do this on DRW trucks) to adjust it you might be stuck with the light.

 

[regal2800]

once the light comes on, you have to take it all the way to 80 to clear the error message. Then you can deflate them back down. I think below 65 it comes on again.

 

[racer4]

I run my rear (DRW) tires @ 45 psi. No warning.
When did 3500 get TPMS instead of TPIS?
TPIS is psi info only, no warnings, unlike a 2500.

 

[sstoner911]

I run my rear (DRW) tires @ 45 psi. No warning.
When did 3500 get TPMS instead of TPIS?
TPIS is psi info only, no warnings, unlike a 2500.

Seems to have started in the 2025+ 3500 trucks

 

[NDanecker]

Has anyone successfully had their dealer lower the TPMS warning pressure? If so, could you share a copy of the dealer work request and response (please remove any personal details like name or VIN)? When I dropped my truck off for a rear axle hum issue, I asked about lowering the threshold and was told they likely couldn’t due to legal reasons. That may be true, but I’ve heard of others getting it done. It’s frustrating seeing the warning every time I get in the truck, especially since I’m intentionally running below the threshold but still within the tire’s safe load capacity—at that point, the TPMS becomes more of a nuisance than a useful feature.