TPMS limit

[kylant]

just the truck in the accessory position is all that is needed.
i think that may be the "service mode" gemarsh is referring to

 

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[gemarsh]

Hmm - I’ve tried it with both the engine running and just with the electronics in the equivalent of the old accessory position (long press on start button without foot on brake). The Autel states that the ODB needs to be connected “with the ignition on” and I wasn’t sure which one of those that might be referencing.

I’m not familiar with service mode - how do I set that up?

It's even a longer hold press, keep holding when acc comes on. The whole instrument panel will come on and ever module fires up.

 

[TravisJr]

Yes, Autel is brand new and I did all the registration and software updates. OBD port is connected and I’ve tried both running and accessory positions. I’m really scratching my head on this.

My truck is set to do updates in the background, so it is possible that there’s been an OTA update of some kind that mine has which differs from yours.

 

[TravisJr]

just the truck in the accessory position is all that is needed.
i think that may be the "service mode" gemarsh is referring to

Let me try that.

 

[kylant]

here is a pic from my gm app. you can see the tire pressure thresholds

 

[TravisJr]

Yep, still won’t work even with the extra long press. Must be something specific to mine.

 

[kylant]

i just check my truck to see if it still works, it does. i have used this tool on my '26 chevy 2500 zr2 gas, '25 gmc 2500 at4 diesel, 2022 chevy 3500 diesel and 2020 gmc 3500 diesel.

 

[kylant]

truck on
select advanced mode

choose this tpms

select #5

connect, hit continue

ok

select update axle

 

[kylant]

hit the middle edit (wifi looking button)
then you should be able to select the tire pressures you want. repeat for the rear

 

[TravisJr]

I see you’re selecting Chevy Silverado instead of GMC Sierra. Let me see if that makes a difference on mine.

 

[kylant]

I see you’re selecting Chevy Silverado instead of GMC Sierra. Let me see if that makes a difference on mine.

i have used it for both chevy and gmc trucks, see above.
i have also done 2 buddy's trucks, both 2022 GMC AT4 HDs.
so a total of 6 trucks

 

[TravisJr]

Yep, just throwing anything at the wall to see if it sticks at this point.

Although not exactly on point for a diesel forum, I’ll quote general Beringer from War Games: “Goddamnit, I’d piss on a spark plug if I thought it’d do any good!”

I do appreciate everyone’s time and effort trying to nail this down.

 

[gemarsh]

 

[TravisJr]

HAHAHAHAHA success! For whatever reason, it went through when I selected Chevy Silverado as opposed to GMC Sierra.

Don’t know why mine was being so persnickety, but I appreciate everyone’s help in working through it.

 

[kylant]

your truck identifies as a chevy