C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

MRC Update = CAGS delete?

Thread Tools
 
Search this Thread
 
Old Jun 4, 2018 | 01:44 PM
  #1  
M_G's Avatar
M_G
Thread Starter
Advanced
All Eyes On Me
Liked
 
Joined: Jan 2017
Posts: 53
Likes: 12
From: MI
Default MRC Update = CAGS delete?

Anyone else noticed that CAGS/Skip Shift seems to be gone after the MRC update?

I normally don't worry about the CAGS too much, but it does get me every once in a while since all of my 5 mile commute is on 35mph or less roads in town and when there is traffic sometimes I'll have it kick on. I've been debating getting the eliminator to make it go away, but I haven't seen it once since I had the MRC update 2 weeks ago. I realized today that it wasn't coming on anymore so I purposely tried to shift in the range and I didn't get the pop up in the DIC and didn't get locked out of 2nd. I tried this several times, holding the speed steady at both 17, 18 and 19 mph and never got the pop-up or got locked out of 2nd.

I'm curious if anyone else had this result with the MRC update? Not sure how else it could have gone away because I haven't done anything else to my car. Everything else is stock besides my brake pad swap (dealer did this for me at the same time they did the MRC update and oil change).
Reply
Old Jun 4, 2018 | 01:54 PM
  #2  
mschuyler's Avatar
mschuyler
Safety Car
 
Joined: Feb 2016
Posts: 4,980
Likes: 3,826
From: Bainbridge Island WA
Default

I don't see how. The MSRC computer is a completely separate module that doesn't even exist in non MSRC cars. CAGS is a transmission issue. I wouldn't think an MSRC update would even touch the transmission computer.

Last edited by mschuyler; Jun 5, 2018 at 05:30 PM.
Reply
Old Jun 4, 2018 | 01:58 PM
  #3  
Patches's Avatar
Patches
Team Owner
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Default

No problem with mine after MRC update.
Reply
Old Jun 4, 2018 | 02:00 PM
  #4  
M_G's Avatar
M_G
Thread Starter
Advanced
All Eyes On Me
Liked
 
Joined: Jan 2017
Posts: 53
Likes: 12
From: MI
Default

Originally Posted by mschuyler
I don't see how. The MSRC computer is a completely separate module that doesn't even exist in on MSRC cars. CAGS is a transmission issue. I wouldn't think an MSRC update would even touch the transmission computer.
, but its happening. I haven't done anything else, and the message doesn't even come up and I go out of my way to try and make it. Even with the CAGS eliminator you still get the pop-up, it just doesn't block the gate...

Hence why I want to know if anyone else has seen this issue, or if something else happened to my car and CAGS is just gone...

Last edited by M_G; Jun 4, 2018 at 02:01 PM. Reason: got bumped down so adding quote
Reply
Old Jun 4, 2018 | 02:29 PM
  #5  
mschuyler's Avatar
mschuyler
Safety Car
 
Joined: Feb 2016
Posts: 4,980
Likes: 3,826
From: Bainbridge Island WA
Default

It may be happening, but it doesn't follow that there is cause and effect here.
Reply
Old Jun 4, 2018 | 02:57 PM
  #6  
Bill Dearborn's Avatar
Bill Dearborn
Tech Contributor
25 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Oct 1999
Posts: 41,037
Likes: 9,801
From: Charlotte, NC (formerly Endicott, NY)
Default

What are you doing to get CAGS to activate? If you aren't driving slow enough and shifting between 14 and 20 mph it won't activate.

Bill
Reply
Old Jun 4, 2018 | 03:04 PM
  #7  
M_G's Avatar
M_G
Thread Starter
Advanced
All Eyes On Me
Liked
 
Joined: Jan 2017
Posts: 53
Likes: 12
From: MI
Default

Originally Posted by Bill Dearborn
What are you doing to get CAGS to activate? If you aren't driving slow enough and shifting between 14 and 20 mph it won't activate.

Bill
I have tried at least 10 times now, holding speed steady at 16, 17, and 18 MPH in 1st (when CAGS would usually kick in). While I do this there is no message in the DIC, and if I go to shift into 2nd I can without hesitation. CAGS is clearly not engaging.

Don't get me wrong, if I had the option to choose how my car was programmed this would have been the desired result. I'm just curious what happened because I didn't think you could make it go away without a tune... I'm pretty sure my Chevy dealer didn't do that!
Reply
Old Jun 4, 2018 | 03:18 PM
  #8  
Avanti's Avatar
Avanti
Race Director
25 Year Member
Community Builder
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 19,946
Likes: 6,747
From: Bonneville Salt Flats
Default

Who knows what his dealer might have done... really!
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Jun 4, 2018 | 03:19 PM
  #9  
mschuyler's Avatar
mschuyler
Safety Car
 
Joined: Feb 2016
Posts: 4,980
Likes: 3,826
From: Bainbridge Island WA
Default

OK. I just went out with mine. MSRC upgrade was done last week. I have an M7, and CAGS engages normally at slow speed. I rarely see it because I rev past it, but it definitely is STILL THERE to be ignored if possible.
Reply
Old Jun 4, 2018 | 03:21 PM
  #10  
Mark Maple's Avatar
Mark Maple
Racer
15 Year Member
Conversation Starter
All Eyes On Me
Top Answer: 1
 
Joined: Nov 2006
Posts: 434
Likes: 103
From: Churubusco IN
Default

CAGS is still active in my car that has received the MSRC upgrade.
Reply
Old Jun 4, 2018 | 08:10 PM
  #11  
rrsperry's Avatar
rrsperry
Safety Car
 
Joined: Sep 2015
Posts: 4,785
Likes: 1,417
Default

Why would you want cags? $20 part and it will never, ever happen...lol

Last edited by rrsperry; Jun 4, 2018 at 08:10 PM.
Reply
Old Jun 4, 2018 | 09:57 PM
  #12  
changw1's Avatar
changw1
Instructor
Liked
 
Joined: Apr 2017
Posts: 132
Likes: 24
From: Richmond VA
Default

I thought the same thing right after the MRC update. It came back after a few days of driving. Don't know why.

Last edited by changw1; Jun 5, 2018 at 10:24 AM.
Reply
Old Jun 4, 2018 | 10:56 PM
  #13  
falcon5619's Avatar
falcon5619
Burning Brakes
15 Year Member
 
Joined: Sep 2007
Posts: 1,048
Likes: 300
From: FL
Default

CAGS engagement depends on more than just speed. It also looks at coolant temp, throttle position and even barometric pressure. To tune it out usually you set one or more of these values to an u reachable level so cags can never engage. In your case, I would just make sure your coolant temp is up on the 170 range before testing it.
Reply
Old Jun 5, 2018 | 08:46 AM
  #14  
M_G's Avatar
M_G
Thread Starter
Advanced
All Eyes On Me
Liked
 
Joined: Jan 2017
Posts: 53
Likes: 12
From: MI
Default

Originally Posted by changw1
I though the same thing right after the MRC update. It came back after a few days of driving. Don't know why.
Interesting. Thanks for the update. Glad I'm not the only crazy one.

Originally Posted by falcon5619
CAGS engagement depends on more than just speed. It also looks at coolant temp, throttle position and even barometric pressure. To tune it out usually you set one or more of these values to an u reachable level so cags can never engage. In your case, I would just make sure your coolant temp is up on the 170 range before testing it.
Most of my driving lately has been shorter trips (less than 10 miles). I'll pay attention to this tomorrow. Had to drive the truck today because I have to pick up both kids after work. Thanks!
Reply
Old Jun 5, 2018 | 01:10 PM
  #15  
mschuyler's Avatar
mschuyler
Safety Car
 
Joined: Feb 2016
Posts: 4,980
Likes: 3,826
From: Bainbridge Island WA
Default

Originally Posted by rrsperry
Why would you want cags? $20 part and it will never, ever happen...lol

Why waste the $20? It's not worth the time & trouble. If you are engaging cags on anything but an occasional basis, you're shifting too low. Mine engaged in the NCM parking lot after R8C delivery and maybe twice* since then and it's been over a year.


* Except intentional testing as per above post.
Reply
Old Jun 5, 2018 | 04:54 PM
  #16  
rb185afm's Avatar
rb185afm
Drifting
15 Year Member
 
Joined: Jan 2005
Posts: 1,441
Likes: 557
Default

I’ve had the update and mine still activates.
Reply
Old Jun 5, 2018 | 08:34 PM
  #17  
iclick's Avatar
iclick
Melting Slicks
10 Year Member
Veteran: Army
Top Answer: 1
 
Joined: Mar 2013
Posts: 3,104
Likes: 626
From: Baton Rouge LA
Default

Originally Posted by mschuyler
I don't see how. The MSRC computer is a completely separate module....
Since the MRSC upgrade is achieved with an MDI through the OBD2 connector, which I assume can access all modules in the car, why would it not be possible to access CAGS functionality, too. Some have reported a change in steering feel, which would be the same idea. I have a CAGS eliminator and truthfully have never noticed the CAGS notification on the DIC, but will keep an eye out now that I've had the MRSC upgrade done.

Last edited by iclick; Jun 5, 2018 at 08:35 PM.
Reply
Old Jun 5, 2018 | 08:50 PM
  #18  
mschuyler's Avatar
mschuyler
Safety Car
 
Joined: Feb 2016
Posts: 4,980
Likes: 3,826
From: Bainbridge Island WA
Default

Originally Posted by iclick
Since the MRSC upgrade is achieved with an MDI through the OBD2 connector, which I assume can access all modules in the car, why would it not be possible to access CAGS functionality, too. Some have reported a change in steering feel, which would be the same idea. I have a CAGS eliminator and truthfully have never noticed the CAGS notification on the DIC, but will keep an eye out now that I've had the MRSC upgrade done.


Because there is absolutely no evidence that it did, nor would it be necessary if the MSRC settings were what was to be changed. Why would it access a transmission setting? Everyone else, including myself, who has looked into this has reported cags still works normally. And if you have installed the cags eliminator, you've taken yourself out of this equation altogether because you'll never know. If additional evidence surfaces and more and more people report the elimination of cags, then okay. Let's look into this. But so far this anomaly has yet to be duplicated or confirmed.
Reply
Old Jun 5, 2018 | 09:31 PM
  #19  
iclick's Avatar
iclick
Melting Slicks
10 Year Member
Veteran: Army
Top Answer: 1
 
Joined: Mar 2013
Posts: 3,104
Likes: 626
From: Baton Rouge LA
Default

Originally Posted by mschuyler
Because there is absolutely no evidence that it did, nor would it be necessary if the MSRC settings were what was to be changed. Why would it access a transmission setting?
If you'll go back and read my reply again you'll see that I was posing a hypothetical that it was possible, not making a categorical statement that the MRSC upgrade also affected CAGS or steering. I also see no evidence that it affects CAGS, but it might be possible to do. I offered that in response to your suggestion that it wasn't possible because it was a separate module.

Last edited by iclick; Jun 5, 2018 at 09:32 PM.
Reply

Get notified of new replies

To MRC Update = CAGS delete?





All times are GMT -4. The time now is 03:06 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE