09-06-2021, 06:30 PM | #1 |
Drives: 2021 ZL1 1LE Join Date: Aug 2010
Location: Fredericksburg, Virginia
Posts: 409
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Rear Axle System Off
So on Saturday I was tracking the car at Daytona 24hr Config course. Half way thru the day "Rear Axle System Off" message came up. The message only came up one time both days while tracking it, but while driving it back and forth to the gas station in tour mode the slip indicator light was continuously flashing. If I went into another mode it wouldn't flash. I was running the car on the track in track mode/race setting. Dropped it off at the dealer tonight so will see what they say this week. Thoughts what it could be?
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09-07-2021, 01:20 AM | #2 |
Makis
Drives: 2020 Red Hot ZL1 A10 Join Date: Apr 2019
Location: London - UK
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Following
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09-07-2021, 09:20 AM | #3 |
Drives: 2021 ZL1 1LE Join Date: Aug 2010
Location: Fredericksburg, Virginia
Posts: 409
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Update
Update from dealer:
Limited slip fluid leaked into the rear differential. They are installing a new rear differential. Should be in tomorrow. |
09-07-2021, 12:53 PM | #4 |
Drives: 1LE Join Date: Sep 2017
Location: East Coast
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09-07-2021, 06:15 PM | #5 |
Drives: 2018 Camaro 1SS 1LE Join Date: Jun 2021
Location: Michigan
Posts: 434
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Help me understand what that means. The way I understand it differential fluid is supposed to be inside the differential. Did it flow into the ECU which controls the engagement of the clutch pacts on the eDiff? Or are the clutch packs separate, and the diff fluid leaked into the diff from the clutch packs?
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09-07-2021, 07:00 PM | #6 | |
Drives: 2021 ZL1 1LE Join Date: Aug 2010
Location: Fredericksburg, Virginia
Posts: 409
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Quote:
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09-09-2021, 06:34 PM | #7 | |
Drives: Chevrolet SS 1LE Join Date: Oct 2019
Location: St. Charles, MO
Posts: 1,446
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Quote:
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Matt Miller
2020 SS 1LE |
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09-09-2021, 07:25 PM | #8 |
Drives: 2018 Camaro 1SS 1LE Join Date: Jun 2021
Location: Michigan
Posts: 434
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That makes sense now. Thanks guys.
OP, good luck getting the issue resolved. |
12-01-2021, 06:30 AM | #9 |
Drives: 2018 1SS 1LE Hyper Blue Metallic Join Date: Nov 2018
Location: MD
Posts: 31
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Random thing for this, regarding GM.
I was at Daytona in mid-September for racing and had the same issue, but it was software related. Something to do with the G forces on the banking that can freak out the system at very slow speeds(~30mph for me) and even at transition off the banking at high speeds. I spoke to GM about this and they were able to replicate the problem while testing, they are working on an update for this incase anyone runs into this issue but it's not actually the diff like in your case.
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12-02-2021, 04:38 PM | #10 | |
Drives: 2021 ZL1 1LE Join Date: Aug 2010
Location: Fredericksburg, Virginia
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Quote:
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12-02-2021, 04:51 PM | #11 |
Drives: 2023 CT5 Blackwing Join Date: Sep 2016
Location: Orlando
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Must be a new problem. I've run Daytona a dozen times in my 2017 1LE and never had an issue.
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12-02-2021, 07:49 PM | #12 |
Drives: 2020 ZLE Join Date: Aug 2021
Location: Austin, TX
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following. This is a rather interesting one
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2020 ZLE A10
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12-03-2021, 08:29 PM | #13 |
Drives: 2018 NFG 2SS 1LE! Join Date: Jul 2018
Location: PA
Posts: 512
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Ediff fluid? Is this something we should be checking? Never knew there was separate fluid from the differential.
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12-05-2021, 03:17 PM | #14 |
Geoff
Drives: 2020 ZL1 Green Join Date: May 2013
Location: Houston
Posts: 1,720
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sub'd, this is interesting, OP never heard of a leak there
Kmeleon: on the back of the cradle near the diff housing there is an aluminum "square" with electrical connectors on the driver's side and hoses on the passenger side. this is the electro/hydraulic system that changes the bias of the differential on the fly per system programing. I've been told the fluid is Dexron IV (transmission fluid) and doesn't have a maintenance interval. There is a procedure for refilling it, but only in the case of a needed repair.
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