PCS Failure - Can’t charge at all

[Outdoors]

This has been a known issue for many years on many models. My 3 limps on charging as it has a partial PCS failure. S had a failure. Other than the battery, this(PCS) and the charge port take quite a bit of use. Shame Tesla can't figure something like this.

For example my S has had 4118 charging sessions in its life. I have had two chargeport doors replaced. 1 Chargeport, and a PCS. If one thinks about cycles and usage that is piss poor. I could do the work on data for the other cars. Tesla's PCS's suck for the most part.

People whine and complain, yet Tesla did nothing on the 3 and Y for these. Outside of the battery, and outside of the motor. So no coverage post basic warrenty. Sure some might give a handy to the service manager to cover it. Yet if Tesla handles the PCS like they do for other cars it will not be covered.

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[CyberGus]

Every warranty has a time limit. A major failure is rarely fixed for free outside of warranty by any manufacturer.

That said, I'm disappointed in the PCS failure rate, and that it is not included in the drivetrain warranty, despite residing inside the HV pack.

 

[mongo]

Every warranty has a time limit. A major failure is rarely fixed for free outside of warranty by any manufacturer.

That said, I'm disappointed in the PCS failure rate, and that it is not included in the drivetrain warranty, despite residing inside the HV pack.

It's a battery and drive unit warranty, not pack nor powertrain. New (2026) trucks get the High-Priced Propulsion-Related Parts ZEV Limited Warranty with 7yr/70k coverage.
https://digitalassets.tesla.com/tes...rtruck-new-vehicle-limited-warranty-en-us.pdf

 

[rjbonds]

I just had this happen to me. My service

Hi Dustin,
So I just dropped off my CT at Buena Park Tesla for the PSC replacement today. My CT has 56,000 miles. Just like you, my advisor first sounded like it would be covered under warranty but then I got a quote for about $3700. After letting them know how upset and disappointed I was, the service manager did give me a discount. But I think all the CT owners need to take their trucks in and have it replaced even if its not broken yet. Because it will. It's just a matter of will you be lucky enough for the part to break while its under warranty or not. And if the advisor says that he can't replace it, I would ask him to put it in writing that you don't have to pay to replace it if it goes out later. This is not a wear and tear part. It should last the lifetime of the car. The fact that Tesla knows about this problem but won't make it right with their customers is really disappointing.
This should be a recall issue. That's why I urge everyone to go to your dealers and demand that you get a new PCS module. I think if enough customers go in with the same issue, the manufacturer has to post a recall.
Also, some of you asked if there were signs of this before... my CT was charging at 24 amps instead of 48 for a couple of days before it stopped charging all together. So, yeah, take your car in and request that the PCS be replaced. For sure it will not go easy. Be prepared to put up an argument. Our only chance in winning this thing is strength in numbers, unity, and social media.

When I was checking my truck in for the PCS failure on Monday, January 26, 2026 at the Anaheim Hills service center, the service employee that was checking truck in told me that this is a defect of certain early PCS's and they had an open work order already on my truck before my PCS even failed. He went on to say that Tesla has resolved the issue on the new replacement PCS's and he has not seen a cyber truck back for the same problem once the PCS has been replaced with the updated version. He didn't know if the updated PCS is a new design or if the failures were caused by a defective component in the old PCS's.

 

[CapheDa]

When I was checking my truck in for the PCS failure on Monday, January 26, 2026 at the Anaheim Hills service center, the service employee that was checking truck in told me that this is a defect of certain early PCS's and they had an open work order already on my truck before my PCS even failed. He went on to say that Tesla has resolved the issue on the new replacement PCS's and he has not seen a cyber truck back for the same problem once the PCS has been replaced with the updated version.

I’m glad they are taking care of you at Anaheim and that the company is doing the right thing by proactively opening work orders for early foundation series. However, it’s only been a couple weeks since I was there and had to fight fight fight to get them to waive the cost of my repair which was $6375. So if that’s what they’re doing now it’s pretty recent and possibly a result of the members here encouraging me to make noise to get my truck fixed for free.

 

[Peterwtf]

But is there a better PCS in existence? Or is it just going to be replaced with a new, faulty part that will still go out again?

I’m sure they fixed the problem with the PCs. I can’t imagine they would want to do this again. Besides that would open them up to lemon law issues. I still think every CT owners bombarding the service department asking for this to be replaced immediately might lead to a voluntary recall. If there’s a recall everyone can wait knowing it will be fixed for free when it happens. No need to rush. But the way it is now, you can’t take that chance or you could be paying $4000 cause it happened out of warranty

When I was checking my truck in for the PCS failure on Monday, January 26, 2026 at the Anaheim Hills service center, the service employee that was checking truck in told me that this is a defect of certain early PCS's and they had an open work order already on my truck before my PCS even failed. He went on to say that Tesla has resolved the issue on the new replacement PCS's and he has not seen a cyber truck back for the same problem once the PCS has been replaced with the updated version. He didn't know if the updated PCS is a new design or if the failures were caused by a defective component in the old PCS's.

Your car is still probably still under warranty. It's really upsetting because my car is under 2 yrs old. I picked it up 3/31/24. I just drive a lot. I really like everything about Tesla and everything that Musk invents. I just don't like the way that this is playing out knowing that they have a faulty part, but they're going to replace only for who they have to for and not make the situation right. And it's really us, the early customers that took the risks and put the trucks on the streets and had to deal with the bugs. I guess we'll see what happens soon. I'm supposed to pick up my truck on Monday, Feb. 2. I've requested that they escalate my situation. The tech said he will, but he didn't sound very optimistic. Will let everyone know.

 

[JCERRN]

It's a battery and drive unit warranty, not pack nor powertrain. New (2026) trucks get the High-Priced Propulsion-Related Parts ZEV Limited Warranty with 7yr/70k coverage.
https://digitalassets.tesla.com/tes...rtruck-new-vehicle-limited-warranty-en-us.pdf

I think this excludes the ct

 

[Outdoors]

I think this excludes the ct

It was added if one reads the document.

https://service.tesla.com/docs/Public/prp/prp_ct_08182025_en-us.pdf a link to this within the document

 

[Floridaman]

I just had mine replaced at 58k miles... 6700 here. I am extremely disappointed to have to do such an expensive repair in a year and a half.. The service advisor said it's a known issue and didn't think there had been any changes or improvements. I really hope this get addressed.

I love everything about my truck other than this!

 

[Travis64]

I just had mine replaced at 58k miles... 6700 here. I am extremely disappointed to have to do such an expensive repair in a year and a half.. The service advisor said it's a known issue and didn't think there had been any changes or improvements. I really hope this get addressed.

I love everything about my truck other than this!

2 other people complained and got a new pcs for free out of warranty

 

[Mini2nut]

Per Google…

Yes, Tesla has updated the Power Conversion System (PCS) in the Cybertruck, transitioning from the initial unit to a revised PCS2 to improve reliability and address charging issues. This new system, often installed during service, supports the truck's 48V architecture and manages 800V/48V conversion, offering better performance and stability.
Key Details Regarding PCS Changes:

• PCS2 Upgrades: The revised PCS2 unit offers dual DC-DC converters for better redundancy and, in some cases, improves home charging speeds.
• Replacement Activity: Reports indicate Tesla service centers are replacing original PCS units with the upgraded PCS2 for owners experiencing charging failures.
• Service Manual Updates: As of late 2024 and throughout 2025, Tesla's service manuals have been updated with procedures for handling, repairing, and replacing components within the updated PCS.
• 48V System Focus: The PCS is central to the Cybertruck's 48V system, and revisions have been made to ensure it can handle the load, including, in some cases, adding ferrite cores to the DC-DC converter (DCA) harness.

While some users in early 2025 noted a lack of wide-ranging hardware changes, the PCS system has been a focus of ongoing reliability improvements.

 

[Floridaman]

I asked and he said they couldn't do anything. I just picked it up on Thursday. I'm going to message the manager and try again.

I don't know of the part they installed was updated or not. It was:
POWER CONVERSION
SYSTEM -
48AMP(1777777-T2-G)

The SA didn't think it was an updated party, but wasn't sure...

 

[daveog]

I asked and he said they couldn't do anything. I just picked it up on Thursday. I'm going to message the manager and try again.

I don't know of the part they installed was updated or not. It was:
POWER CONVERSION
SYSTEM -
48AMP(1777777-T2-G)

The SA didn't think it was an updated party, but wasn't sure...

I would try to find out, and if they didn’t install an updated part I would demand it. Especially since you paid for it!

 

[Peterwtf]

I just had mine replaced at 58k miles... 6700 here. I am extremely disappointed to have to do such an expensive repair in a year and a half.. The service advisor said it's a known issue and didn't think there had been any changes or improvements. I really hope this get addressed.

I love everything about my truck other than this!

That’s terrible. $6700 for a faulty part that the manufacturer knows about is terrible customer service. This is the type of shit that will turn fans into haters. With all the different issues that the CT has had, at least they were fixing them as they went through recall or warranty. But this is like a slap in the face to their customers. Even as tesla admit their problems, they won’t own up to it. This bothers me on so many levels. The dealers need to step up and speak up.

 

[Outdoors]

The dealers need to step up and speak up.

Ahhh what kind of dealer do you speak of:
This kind?

This kind?

Because there isn't this kind with Tesla:

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