P06DD at 150 miles, 2026 Stingray
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Intermediate
Joined: May 2026
Posts: 31
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From: Northeast USA
P06DD at 150 miles, 2026 Stingray
Wife took this as I was driving home from coffee today, just picked the car up 3 days ago. :\
Per the OnStar report:
Here are the results of your recent On-Demand Diagnostic request on your 2026 Chevrolet Corvette.
Module Diagnostic Code Diagnostic Information Recommended Action
ABS - StabiliTrak® Stability Control System None No Error Code Found None
ABS - Antilock Braking System None No Error Code Found None
VIU - OnStar System None No Error Code Found None
SDM - Air Bag System None No Error Code Found None
ECM - Engine and Transmission System P06DD Service within 7 days
ECM - Engine and Transmission System P06DD Service within 7 days
TCM - Engine and Transmission System None No Error Code Found None
I didn't have any long drives planned this weekend but still, at 150 miles having to drop the car off already is no bueno. 
Anyone had this pop up so soon? I found a bunch of other threads on it and it seems like it can go either way.
Per the OnStar report:
Here are the results of your recent On-Demand Diagnostic request on your 2026 Chevrolet Corvette.
Module Diagnostic Code Diagnostic Information Recommended Action
ABS - StabiliTrak® Stability Control System None No Error Code Found None
ABS - Antilock Braking System None No Error Code Found None
VIU - OnStar System None No Error Code Found None
SDM - Air Bag System None No Error Code Found None
ECM - Engine and Transmission System P06DD Service within 7 days
ECM - Engine and Transmission System P06DD Service within 7 days
TCM - Engine and Transmission System None No Error Code Found None
Anyone had this pop up so soon? I found a bunch of other threads on it and it seems like it can go either way.
Last edited by BSZ; Today at 03:11 PM.
Thread Starter
Intermediate
Joined: May 2026
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From: Northeast USA
Oil level on the dipstick looks good, and I don't see anything in the car that can tell me the level, just oil life which is at 98%. I have to assume this was checked when the car was prepped for delivery, but one never knows. Hoping it's just a sensor and not a boondoggle.
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Good luck with the fix - hope it turns out to be something simple.
Thread Starter
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From: Northeast USA
It's off to MacMulkin on Monday AM so I'm sure they'll put it right. I plan to ask them to do an oil change on it right now anyway, regardless. The level is bang on between the high and low markers when the car is cold. I have a feeling nobody actually went through the car before they sent it out for delivery.
Last edited by BSZ; May 30, 2026 at 07:02 PM.
Melting Slicks
Joined: Aug 2016
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From: MOUNTAIN HOME Arkansas
Haven’t I read here temp needs to be at operating temperature & engine running? Why would you change oil at 98% & so few miles . Your car do as you want, just inquiring minds want to know 👍
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Thread Starter
Intermediate
Joined: May 2026
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From: Northeast USA
I don't think the vehicle was prepped correctly, so rather than drive around with mystery oil as it's throwing oil pressure related codes, I'm going to ask them to change it properly so I know it's done correctly.
Last edited by BSZ; May 31, 2026 at 11:48 AM. Reason: typos
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From: Garden Valley CA
The error I'm getting is oil pressure related. I did check it at temp per the manual as well - I was just adding that I checked it cold as well for context.
I don't think the vehicle was prepped correctly, so rather than drive around with mystery oil as it's throwing oil pressure related codes, I'm going to ask them to change it properly so I know it's done correctly.
I don't think the vehicle was prepped correctly, so rather than drive around with mystery oil as it's throwing oil pressure related codes, I'm going to ask them to change it properly so I know it's done correctly.
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The error I'm getting is oil pressure related. I did check it at temp per the manual as well - I was just adding that I checked it cold as well for context.
I don't think the vehicle was prepped correctly, so rather than drive around with mystery oil as it's throwing oil pressure related codes, I'm going to ask them to change it properly so I know it's done correctly.
I don't think the vehicle was prepped correctly, so rather than drive around with mystery oil as it's throwing oil pressure related codes, I'm going to ask them to change it properly so I know it's done correctly.
Last edited by Andybump; May 31, 2026 at 02:18 PM.
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From: Northeast USA
Whelp, engine out it is.
They reset the code and took it for a spin to test the oil pressure. I went to pick the car back up and they said it may have been an anomaly, a bubble in the oil, or something else that triggered it. Oil levels are all good and the full diagnostic they did on it earlier in the day came back clean.
I made it about half a mile out of the dealership (MacMulkin) after picking it back up and the CEL came back on. They're going to have to drop the cradle and my best ETA for getting it back is at least a couple of weeks.
Not much the dealer can do otherwise and **** happens - just absolutely ******' sucks. i'm going to look into extended warrantees and such now, because this would have been a monstrous out of pocket bill and the car only has 200 miles on it. Not the best start to things.
They reset the code and took it for a spin to test the oil pressure. I went to pick the car back up and they said it may have been an anomaly, a bubble in the oil, or something else that triggered it. Oil levels are all good and the full diagnostic they did on it earlier in the day came back clean.
I made it about half a mile out of the dealership (MacMulkin) after picking it back up and the CEL came back on. They're going to have to drop the cradle and my best ETA for getting it back is at least a couple of weeks.
Not much the dealer can do otherwise and **** happens - just absolutely ******' sucks. i'm going to look into extended warrantees and such now, because this would have been a monstrous out of pocket bill and the car only has 200 miles on it. Not the best start to things.
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Whelp, engine out it is.
They reset the code and took it for a spin to test the oil pressure. I went to pick the car back up and they said it may have been an anomaly, a bubble in the oil, or something else that triggered it. Oil levels are all good and the full diagnostic they did on it earlier in the day came back clean.
I made it about half a mile out of the dealership (MacMulkin) after picking it back up and the CEL came back on. They're going to have to drop the cradle and my best ETA for getting it back is at least a couple of weeks.
Not much the dealer can do otherwise and **** happens - just absolutely ******' sucks. i'm going to look into extended warrantees and such now, because this would have been a monstrous out of pocket bill and the car only has 200 miles on it. Not the best start to things.
They reset the code and took it for a spin to test the oil pressure. I went to pick the car back up and they said it may have been an anomaly, a bubble in the oil, or something else that triggered it. Oil levels are all good and the full diagnostic they did on it earlier in the day came back clean.
I made it about half a mile out of the dealership (MacMulkin) after picking it back up and the CEL came back on. They're going to have to drop the cradle and my best ETA for getting it back is at least a couple of weeks.
Not much the dealer can do otherwise and **** happens - just absolutely ******' sucks. i'm going to look into extended warrantees and such now, because this would have been a monstrous out of pocket bill and the car only has 200 miles on it. Not the best start to things.
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Intermediate
Joined: May 2026
Posts: 31
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From: Northeast USA
- Cradle Drop (Powertrain Removal): The standard factory procedure. The engine, Dual Clutch Transmission (DCT), rear suspension, and exhaust are unbolted from the chassis and lowered as a single complete assembly onto a lift table. This is used for major transmission repairs, heavy frame damage, or separating the engine and transmission blocks.
- Engine Out (Engine Only): This entails separating the engine from the transmission while the vehicle is raised. The engine alone is then dropped from the bottom. This is more common for internal engine rebuilds (e.g., swapping a blown engine for a new block) where the DCT does not need to be serviced
I was told they are dropping the cradle, which to me means the engine and the transmission are coming out. I don't know exactly what they are replacing, and since they told me yesterday to come get the car because it was an anomaly (only to tell me an hour later that the car needs to be there for a few weeks), I don't think they have ID'd it either. I will follow up with the work reports in case someone else finds this thread w/this problem later on.
Last edited by BSZ; Yesterday at 10:52 AM.
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Unfortunatly we all have different interpretations of certain terms. Dropping the cradle could be the whole engine/ DCT assembly or just the shear plate so they can look for leaks, loose electronic connections, etc.
Race Director
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This is my first C8 (or GM of any kind) so pardon the terminology if I get it wrong. As I understand it via Google:
I was told they are dropping the cradle, which to me means the engine and the transmission are coming out. I don't know exactly what they are replacing, and since they told me yesterday to come get the car because it was an anomaly (only to tell me an hour later that the car needs to be there for a few weeks), I don't think they have ID'd it either. I will follow up with the work reports in case someone else finds this thread w/this problem later on.
- Cradle Drop (Powertrain Removal): The standard factory procedure. The engine, Dual Clutch Transmission (DCT), rear suspension, and exhaust are unbolted from the chassis and lowered as a single complete assembly onto a lift table. This is used for major transmission repairs, heavy frame damage, or separating the engine and transmission blocks.
- Engine Out (Engine Only): This entails separating the engine from the transmission while the vehicle is raised. The engine alone is then dropped from the bottom. This is more common for internal engine rebuilds (e.g., swapping a blown engine for a new block) where the DCT does not need to be serviced
I was told they are dropping the cradle, which to me means the engine and the transmission are coming out. I don't know exactly what they are replacing, and since they told me yesterday to come get the car because it was an anomaly (only to tell me an hour later that the car needs to be there for a few weeks), I don't think they have ID'd it either. I will follow up with the work reports in case someone else finds this thread w/this problem later on.
While the powertrain can be removed as a unit it doesn't need to be. The DCT can be removed while leaving the engine in the car with the proper engine support.
The cradle can also be removed while leaving the powertrain in the car with the proper support. However I don't think the engine can be removed without removing the DCT.
Thread Starter
Intermediate
Joined: May 2026
Posts: 31
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From: Northeast USA
Thread Starter
Intermediate
Joined: May 2026
Posts: 31
Likes: 9
From: Northeast USA
Google AI is incorrect once again.
While the powertrain can be removed as a unit it doesn't need to be. The DCT can be removed while leaving the engine in the car with the proper engine support.
The cradle can also be removed while leaving the powertrain in the car with the proper support. However I don't think the engine can be removed without removing the DCT.
While the powertrain can be removed as a unit it doesn't need to be. The DCT can be removed while leaving the engine in the car with the proper engine support.
The cradle can also be removed while leaving the powertrain in the car with the proper support. However I don't think the engine can be removed without removing the DCT.
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From: Garden Valley CA