PCS failure rates by year...is it just a matter of time?

[boley]

This is ridiculous- interestingly a forum member here made a petition some time back…

https://www.change.org/p/make-cybertruck-pcs-failures-covered-under-powertrain-warranty

It looks like he got a refund for his out of pocket PCS repair. So hopefully this is now on their radar. Not sure the username of whoever made this.

I hope everyone in this thread will go sign the petition. I ironically was an early signer and was following a similar thread to this before mine went out.

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[Mini2nut]

I don’t understand how a flat rate of 4.2 labor hours to R/R a defective PCS turns into a huge invoice for thousands of dollars if past the warranty period.

Is a new PCS super expensive? I would love to see an actual invoice that was paid for out of pocket by a member.

 

[Black306]

I don’t understand how a flat rate of 4.2 labor hours to R/R a defective PCS turns into a huge invoice for thousands of dollars if past the warranty period.

Is a new PCS super expensive? I would love to see an actual invoice that was paid for out of pocket by a member.

I’ve seen one somewhere on here. PCS is $1800, labor is ~$250/hr, and add misc items it comes up to over $3k. Others also needed the Ancillary Device Cluster assembly replaced; another $1800 +tax.

https://epc.tesla.com/en-US/catalog...ea94-4f47-b74c-8331800d6185?part=1777777-T2-G

https://epc.tesla.com/en-US/catalog...ea94-4f47-b74c-8331800d6185?part=1816026-S0-J


EDIT: https://www.cybertruckownersclub.co...an’t-charge-at-all.53167/page-4#post-30742181

 

[AlDente]

Thanks for the input. You're going to absolutely love the CT. I had the same model x (2018 6 seater) and we loved it. Our kids are older now and we seem to always run into situations where the 5 seats in the CT or our Model Y just aren't enough. That's the only reason I'm considering Model X now since they are going away and I unfortunately can't afford to have a MX and CT

My main question though is what are peoples thoughts on the PCS failure concern? Hopefully some who have knowledge about it or experienced it will have some input. I don't like thinking that at any moment I can be stranded

You know there is that Model YL purported to be arriving on these shores this year. It's got 6 seats but I believe the back row is reserved for children or perhaps small adults.

 

[EXPTREVER]

You know there is that Model YL purported to be arriving on these shores this year. It's got 6 seats but I believe the back row is reserved for children or perhaps small adults.

Oh nice, I hadn’t realized tha was coming to the U.S.
That could definitely be an option for us with the kiddos. Also would mean I could keep my CT

 

[AlDente]

Oh nice, I hadn’t realized tha was coming to the U.S.
That could definitely be an option for us with the kiddos. Also would mean I could keep my CT

Yeah, it's setup just like the X with captains chairs as the 2nd row and a middle walk through.

 

[nevetsyad]

I have read on Grok that the gap in cost to replace PCS is because of what else is damage in addition to PCS because of PCS failure??

SO THEN, is it financially smart to replace the PCS now BEFORE failure. Eat up approximately $2000 now to get the updated PCS version and call it a day??

It would prevent costly repairs after warranty and, of course, prevent being stranded. Not dating $2k is chump change but it may prevent future headaches?

I may do this right before factory warranty runs out if PCS has not gone bad.

This is genius and what I'm going to do. Soon as I hit 50K miles, I'm dropping it off for a cheap PCS replacement before it damages something and or leaves me stranded.

 

[CyberTexas]

This is genius and what I'm doing to do. Soon as I hit 50K miles, I'm dropping it off for a cheap PCS replacement before it damages something and or leaves me stranded.

I am going to see if i can price one out with my service folks just for giggles.

 

[nevetsyad]

I am going to see if i can price one out with my service folks just for giggles.

Report back please! I'm curious, fingers crossed it's "only" 2G or so.

 

[Jager]

If anyone is curious about what the PCS (PCS2 is the actual designation of the unit in the Cybertruck) looks like, here is an 11-minute video from Munro; and a 9-minute video where Sandy discusses the CT with Drew Baglino and some other senior Tesla people.

 

[EXPTREVER]

If anyone is curious about what the PCS (PCS2 is the actual designation of the unit in the Cybertruck) looks like, here is an 11-minute video from Munro; and a 9-minute video where Sandy discusses the CT with Drew Baglino and some other senior Tesla people.

Thanks for posting these. I had watched them a long time ago and forgotten. In the first video they discuss how the PCS2 has two systems (for redundancy) that are copies of each other. I wonder if that's why some people like myself experience the charging at half speed symptom first. Maybe that means one of those two systems went bad and the other one is keeping the truck going. Only a matter of time before it goes and you're stuck. This may be why the service centers are approving full PCS swaps if you tell them it's charging at half speed.

 

[Outdoors]

When one is charging at slower speed on a L2 that just means partial failure of the PCS. A module failed. That is not the redundancy they speak of. The older even pre PCS had a the same thing. A module would often fail. One could have it fixed or deal with reduced charging. Never impacting the Supercharging.

When one would open it up you would see melted plastic around one(first hand), and on the heat shielding. Yet sometimes I would imagine the heat would move around and complete failure would occur.

So I guess my question where is the redundancy when we are seeing total failure of all charging in many cases.

Reminds me of the early octo valve. Trying to solve an efficiency problem that created a problem until it got ironed out. Resistance heaters sucked, but always worked for me at -30F.

In this case PCS is a high usage part of the overall car. So if I was talking to a governing body I would say something like. Hey EV's are supposed to be efficient, yet if I have to spend five thousand dollars all that efficiency goes out the window. Companies are touting battery warrnties, yet it is the charge ports and PCS's that fail to often negate any cost savings compared to other cars or trucks.

 

[Jager]

I think the redundant portion of the PCS2 involves only the DC-DC portion.

My recollection of how AC charging with the older PCS used in the S3XY models happens is via three distinct modules, each handling 16 amps. A failure in one module would, for instance, limit a 60-amp Level Two charging circuit (48 amps actually being provided) to 32 amps. Lose two modules and you'd be down to 16 amps.

One implication of that design is that your home charger may not supply enough power to utilize all three modules, and so an initial PCS module failure may go unrecognized. My Tesla Wall Charger is on a 40-amp circuit, for instance, supplying an actual 32 amps. I could lose one module in my Model 3's PCS and not know it, since the two remaining good modules are sufficient to provide that. Another benefit of having a higher power Level Two charging solution.

The CT uses an integrated PCS design and I have no idea whether it has circuitry analogous to the three-module S3XY PCS.

 

[mongo]

I think the redundant portion of the PCS2 involves only the DC-DC portion.

My recollection of how AC charging with the older PCS used in the S3XY models happens is via three distinct modules, each handling 16 amps. A failure in one module would, for instance, limit a 60-amp Level Two charging circuit (48 amps actually being provided) to 32 amps. Lose two modules and you'd be down to 16 amps.

One implication of that design is that your home charger may not supply enough power to utilize all three modules, and so an initial PCS module failure may go unrecognized. My Tesla Wall Charger is on a 40-amp circuit, for instance, supplying an actual 32 amps. I could lose one module in my Model 3's PCS and not know it, since the two remaining good modules are sufficient to provide that. Another benefit of having a higher power Level Two charging solution.

The CT uses an integrated PCS design and I have no idea whether it has circuitry analogous to the three-module S3XY PCS.

Cybertruck PCS has dual DCAC converters. 24A means one faulted.

 

[CyberGus]

If I reduce my charge current to 24A, does that mean I'm using a single module, or both modules at half-power?

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