When towing, will this turn off MDS?

[Goodcap]

When towing, will this turn off MDS?

 

[Fatherof3]

If you press the tow/haul button yes .

 

[Goodcap]

Ok, thanks much.

 

[Triple X]

If you have a 5th gen no it won't.
You need to use the gear limit.

 

[TruckDriver]

If you have a 5th gen no it won't.
You need to use the gear limit.

^ This is correct - the only thing which disables MDS is the gear limit switch

 

[SD Rebel]

^ This is correct - the only thing which disables MDS is the gear limit switch

Nope, my MDS is disabled when T/H mode is activated, other's have noted that same thing, but it could be year dependent.

 

[Richard320]

Tow/Haul kills MDS in my 2019 Big Horn. Early on I took it on a trip. I was bucking some high winds on the Conejo Grade with cruise control on so it started doing that hunting business dropping into 7 and accelerating like mad then upshifting, so I hit Tow/Haul and made that stop. Then as I was tooling along on the level I noted the instant mileage was low. Thought to shut off tow mode and instantly the ECO light came on.

 

[Triple X]

I re-checked mine today and couldn't get the MDS to engage while in Tow/Haul mode.
I thought it did engage when I tried it before.

Looks like you gents are correct.
Sorry for the bad info.

 

[SD Rebel]

I re-checked mine today and couldn't get the MDS to engage while in Tow/Haul mode.
I thought it did engage when I tried it before.

Looks like you gents are correct.
Sorry for the bad info.

No worries, that's how we figure stuff out

Though you may not actually be wrong, there are a couple of posters who say their MDS does turn on in T/H mode, it could be based on model or spec?

 

[kdoublep]

No MDS while in tow/haul for me

 

[Trooper4]

I have hit the tow haul while IN mds, and it will stay there until it feels the slightest amount of pull.

 

[TruckDriver]

Nope, my MDS is disabled when T/H mode is activated, other's have noted that same thing, but it could be year dependent.

Def could be - wouldn't put it past FCA Engineers to leave wonky programming on various trims.

I distinctly tried it out, not when towing, just in T/H mode in windy mountain roads, I had MDS (and the ECO light) kick on every descent/ascent.

Never happened with the gear limiter though.

 

[SD Rebel]

Def could be - wouldn't put it past FCA Engineers to leave wonky programming on various trims.

I distinctly tried it out, not when towing, just in T/H mode in windy mountain roads, I had MDS (and the ECO light) kick on every descent/ascent.

Never happened with the gear limiter though.

Interesting, what year is your truck?

 

[TruckDriver]

Interesting, what year is your truck?

'19 Rebel - If I remember on my next drive I'll shoot a video, these little things always seem odd between model years.

 

[SD Rebel]

'19 Rebel - If I remember on my next drive I'll shoot a video, these little things always seem odd between model years.

That's real interesting, I was expecting a newer year if they indeed change it, but to be the same year and trim as my truck is a surprise. But you would be one of 2-3 posters on this forum who stated their MDS still functioned in T/H mode.