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Discussion Starter #1
I was heading out of town for some hill country fun when RCOD showed up to put a damper on my day. I'm starting this thread primarily for the benefit of the community, as well as to request advice (particularly once I am able to provide codes). As far as I am aware, the car has relatively low miles to be experiencing a trans malfunction.

The good news is that I broke down within ten minutes of the house and directly across from one of the better BBQ restaurants in the area. I will start doing research and provide codes as soon as they are available.
 

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I was heading out of town for some hill country fun when RCOD showed up to put a damper on my day. I'm starting this thread primarily for the benefit of the community, as well as to request advice (particularly once I am able to provide codes). As far as I am aware, the car has relatively low miles to be experiencing a trans malfunction.

The good news is that I broke down within ten minutes of the house and directly across from one of the better BBQ restaurants in the area. I will start doing research and provide codes as soon as they are available.
Is there a leak?

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Discussion Starter #3
No visible leaks so far, will have to acces tools to remove the underbody cover to be sure.
 

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After some preliminary research, I decided I should provide some clarification and detail as to the circumstances and my car's initial symptoms, primarily so I don't forget as time progresses (as I am prone to do).

Startup was normal, including hearing the SMG pump prime as per normal. Pump sounded healthy as usual, and ran the typical 3-5 seconds to build pressure. I was driving in residential neighborhood conditions/speeds at the time the malfunction occurred, roughly 15 minutes after startup. As I was coming to a stop at a stop sign, I received both the yellow AND red cogs (red came first, as I recall). I activated the hazards and attempted to execute a 3-point 180-degree turn. The clutch engagement was extremely harsh, as if the clutch was being dropped. The engine stalled when I attempted to reverse. I selected Neutral and some fellow motorists assisted me in pushing her into a nearby parking lot. I restarted the car and selected 1st, and the error messages returned right away, accompanied by the very harsh clutch engagement. I selected Neutral again and shut the engine off.

I enlisted the help of a relative to escort me home, following me as I drove in 1st gear all the way (I wanted to minimize shifts so as to preserve what might be a limited resource of hydraulic pressure in the accumulator, in order to make sure I could still select Neutral when I arrived home). Once home and after verifying the car was in neutral, I shut it off and pushed it into the garage.

Upon returning to the car maybe 15 minutes later, I was greeted by the customary whine of the SMG motor priming away as per usual. I hooked it back up to the battery tender and left for my mini-vacation in my '98 Regal GS daily driver, feeling a little deflated for sure. Fault codes / updates to follow.
 

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Sounds like a failing slave cylinder but could also be a PLCD sensor issue. Codes should paint a better picture. I recommend you take note of all the codes that appear when you do the scan, then clear them all and start the car as you normally would, try and shift it to see what happens...if red/yellow cog comes on again, turn off the car and re-scan the codes to see which codes persist.


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