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Speed limiter 98mph??

dan61psu
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dan61psu Enthusiast

dan61psu

Posted
Posted

I will admit it is very rare...and the utility is also rare but i hit the speed limiter recently making a pass on the highway around left lane hogs slowing down a ton of traffic.  98mph?  Really?  Most highways around me the typical speed is 80mph.  Feel like my 2011 didnt have this limit...but cant recall

 

Anyone know how to remove the limiter?

batman900 Enthusiast

batman900

Posted
Posted

I believe the previous gen is the same. Thought I had read somewhere that its due to the drive shaft or something not being able to handle the stress of higher speeds. Could be wrong. 

CmackR56 Enthusiast

CmackR56

Posted
Posted

Mine kicks in at 112, which incidentally  is the speed rating of my tires.

 

redwngr Senior Enthusiast

redwngr

Posted
Posted
12 hours ago, dan61psu said:

Hmmmm....how does the computer know what tire rating i have?

Not to tough for them to know what tires it was born with, and of course, that's where the limiter gets set.

 

lt1z Enthusiast

lt1z

Posted
Posted

The the best of my knowlege it is about the factory equipped tire.

20” wheels with 275/60/20 tend to be 112mph
18” wheels regardless of tire 98mph

The 22” 265/50/22 with Alenza tires also 112

MDSilveradoGuy Enthusiast

MDSilveradoGuy

Posted
Posted (edited)
16 hours ago, lt1z said:

The the best of my knowlege it is about the factory equipped tire.

20” wheels with 275/60/20 tend to be 112mph
18” wheels regardless of tire 98mph

The 22” 265/50/22 with Alenza tires also 112

I have the 22” Alenzas, and it shuts down at 107. 

Edited by MDSilveradoGuy
L86 All Terrain Senior Enthusiast

L86 All Terrain

Posted
Posted (edited)

I cant say for certain for these trucks, but on the K2's they were limited because of driveshaft overspeed. The limit was different depending on the transmission and final drive ratio. There were numerous modded truck people saying they had their DS explode around 115mph. Which is not something I would want to experience. As stated, tire speed ratings come in to play. Most quality OEM size All Terrain tires are usually in the 98-112mph range. 

Edited by L86 All Terrain
FishinJ Enthusiast

FishinJ

Posted
Posted
On 10/4/2019 at 3:47 AM, MDSilveradoGuy said:

I have the 22” Alenzas, and it shuts down at 107. 

That sucks, as I was hoping on cruising at 112.  

  • Haha 1
Radchad Enthusiast

Radchad

Posted
Posted (edited)
3 hours ago, FishinJ said:

That sucks, as I was hoping on cruising at 112.  

That’s awesome. Hahahahah@,!,

Edited by Radchad
  • 1 year later...
April Davis New Member

April Davis

Posted
Posted

This is something that my guy just learned about with his 2020 GMS Sierra SLT- this was never disclosed anytime or anywhere  during the selling of this truck.  THIS SHOULD BE  FULL DISCLOSURE to the customer.  Way to go GMC! now this a serious issue not knowing!  At least Corporate knows🤫- not the consumer! 

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