The Power Converter System (PCS2) FAILED!

[SCTesla]

If you read it, you will see it's not a PCS recall.

https://static.nhtsa.gov/odi/rcl/2024/RCLRPT-24V832-7628.PDF

Yes. As stated many times on this forum.

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[devdrone6]

https://www.notateslaapp.com/news/3...rive-inverters-how-to-check-if-youre-affected

I fell for it thinking it was new recall/story. Should have read a little more into it..

 

[Kevin Burns]

I have 2024 Foundation AWD CT (27xxxxx) with 17k on odometer, I have had little to no issues to date. I concerned about all the posts lately referring PCS failures on early models. My question, are there any Pre-Failure symptoms to be on the lookout before waking up to a complete PCS failure? I am assuming from posts that Tesla realizes issues with early PCS units and has since fixed in later models BUT at this time has Yet to decide on a recall. Makes me question how many are really failing.

The guy at the Tesla Service Center (TCS) told that new replacement PCS2 on Wednesday. I went to the TCS on Wednesday and there was no part. The service rep said they were looking for the part.
I wonder if there is a shortage of these parts because there are a lot of failures. Also wondering if the new PCS i receive will be an upgrade.
I decided to leave my CT because I only had 31% State-Of-Charge (SOC). They didn’t have a loaner for me. However, my wife picked me up.

 

[Kevin Burns]

I upgraded from GROK 4.1 to SuperGROK yesterday and asked this question: “The Power Converter System (PCS) in my 2024 Foundation Series AWD Cybertruck stopped working. I have taken it to the Tesla Service Center and we are waiting for delivery of a replacement PCS. I’m wondering, is there an upgraded PCS version of my PCS2 that will be replaced.
On the Cybertruck Owners Club, members are suggesting that this should be a recall item.”

Thoughts >

Yes, your 2024 Foundation Series AWD Cybertruck’s PCS2 (Power Converter System) replacement should be an upgraded/newer revision of the part (commonly referenced by owners as a later revision like 1777777-T2-G or equivalent), and Tesla service is handling these proactively under warranty at no cost to you.

This is a well-documented issue specific to many early-production 2024 Cybertrucks (especially Foundation Series models). Owners report the exact symptoms you’re experiencing: error codes like PCS2_a094 / PCS2_a095, AC charging becoming unavailable (or limited to ~24A), and Powershare issues, while the truck may still drive and Supercharge in some cases.

Tesla has an internal service bulletin (not yet a full NHTSA safety recall like the separate drive inverter recall for early 2024 builds) that triggers “PCS2 replacement” on service requests. Many owners see this line item added automatically—even if they only reported reduced charging or went in for something else (like tires). Service centers often stock the parts or get them overnight because it’s a known campaign.

Key details on the replacement from owner reports and service experiences:

• The new PCS is described as a “new part” or “new PCS2” by Tesla techs and service advisors.

• Replacements frequently include an upgraded wiring harness (sometimes called an “ancillary bay harness” or similar) to address connector/retention issues that contributed to failures in the original design.

• Failure rates appear lower on later-production trucks, which is why some owners on the Cybertruck Owners Club forum are trading in early FS models specifically to get the revised PCS (though that’s not necessary—your replacement should bring yours up to the improved spec).

• The job typically takes about 4.2 flat-rate hours (plus any coolant drain/refill and diagnostics), and owners report getting their trucks back in 1–2 days once the part arrives. It’s fully covered under your vehicle’s warranty.

The Cybertruck Owners Club forum (the exact threads you referenced) is full of 2024 FS AWD owners in the same situation—many have already had the swap and report no further issues afterward. Some are indeed pushing for it to be escalated to an official recall due to how widespread it is and the risk of being stranded (or limited to DC fast charging only), but right now it’s being treated as a service campaign.

What you can do while waiting:

• Ask your service center (or check the app/service estimate) for the exact part number of the incoming PCS—they should confirm it’s the latest revision.

• If you haven’t already, you can safely drive in “low power mode” or to the nearest Supercharger if needed (many owners do this to get to the center).

• Document everything; warranty coverage has been consistent so far.

You’re not alone—this is one of the more common early Cybertruck gremlins, but Tesla is replacing them promptly. Once the new (upgraded) PCS2 + harness is in, it should resolve the issue long-term. If your service center gives you different info, feel free to share the details and I can help dig further. Hang in there!

 

[Outdoors]

I upgraded from GROK 4.1 to SuperGROK yesterday and asked this question: “The Power Converter System (PCS) in my 2024 Foundation Series AWD Cybertruck stopped working. I have taken it to the Tesla Service Center and we are waiting for delivery of a replacement PCS. I’m wondering, is there an upgraded PCS version of my PCS2 that will be replaced.
On the Cybertruck Owners Club, members are suggesting that this should be a recall item.”

Thoughts >

Yes, your 2024 Foundation Series AWD Cybertruck’s PCS2 (Power Converter System) replacement should be an upgraded/newer revision of the part (commonly referenced by owners as a later revision like 1777777-T2-G or equivalent), and Tesla service is handling these proactively under warranty at no cost to you.

This is a well-documented issue specific to many early-production 2024 Cybertrucks (especially Foundation Series models). Owners report the exact symptoms you’re experiencing: error codes like PCS2_a094 / PCS2_a095, AC charging becoming unavailable (or limited to ~24A), and Powershare issues, while the truck may still drive and Supercharge in some cases.

Tesla has an internal service bulletin (not yet a full NHTSA safety recall like the separate drive inverter recall for early 2024 builds) that triggers “PCS2 replacement” on service requests. Many owners see this line item added automatically—even if they only reported reduced charging or went in for something else (like tires). Service centers often stock the parts or get them overnight because it’s a known campaign.

Key details on the replacement from owner reports and service experiences:

• The new PCS is described as a “new part” or “new PCS2” by Tesla techs and service advisors.

• Replacements frequently include an upgraded wiring harness (sometimes called an “ancillary bay harness” or similar) to address connector/retention issues that contributed to failures in the original design.

• Failure rates appear lower on later-production trucks, which is why some owners on the Cybertruck Owners Club forum are trading in early FS models specifically to get the revised PCS (though that’s not necessary—your replacement should bring yours up to the improved spec).

• The job typically takes about 4.2 flat-rate hours (plus any coolant drain/refill and diagnostics), and owners report getting their trucks back in 1–2 days once the part arrives. It’s fully covered under your vehicle’s warranty.

The Cybertruck Owners Club forum (the exact threads you referenced) is full of 2024 FS AWD owners in the same situation—many have already had the swap and report no further issues afterward. Some are indeed pushing for it to be escalated to an official recall due to how widespread it is and the risk of being stranded (or limited to DC fast charging only), but right now it’s being treated as a service campaign.

What you can do while waiting:

• Ask your service center (or check the app/service estimate) for the exact part number of the incoming PCS—they should confirm it’s the latest revision.

• If you haven’t already, you can safely drive in “low power mode” or to the nearest Supercharger if needed (many owners do this to get to the center).

• Document everything; warranty coverage has been consistent so far.

You’re not alone—this is one of the more common early Cybertruck gremlins, but Tesla is replacing them promptly. Once the new (upgraded) PCS2 + harness is in, it should resolve the issue long-term. If your service center gives you different info, feel free to share the details and I can help dig further. Hang in there!

Thanks for the thread summary from Grok.

 

[Bri01]

I was finally able to drop my truck off today, ahead of scheduled appointment. PCS failed last week, appt was 2 weeks out so I contacted them last week and today was the first day they were able to secure a loaner for me. Parts were supposedly shipped out last week and they have not received them yet. So I’ll just be waiting. I was still able to charge at 24A, but reading these forums I know that’s a ticking time bomb and eventually that fails too so I wanted to unload it quick and not be stuck with a brick. Service guy said they’ve had many of these come through recently. If they don’t have parts in stock that means they are going through them quick. Should be a recall, and should pay back the person/people that had to pay for this service out of warranty range. (2024 Foundation with 18k miles)

 

[Fleetwood75]

I have an early Foundation Series AWD. I had my PCS replaced on March 5th and the replacement unit is already acting up! For a few weeks afterwards I was back to 48 amp charging but now it's back to 24 amp charging. I have a service appointment set for Friday, we'll see what they say. It has me very concerned though that the replacement part only lasted weeks.

 

[Pops]

I have an early Foundation Series AWD. I had my PCS replaced on March 5th and the replacement unit is already acting up! For a few weeks afterwards I was back to 48 amp charging but now it's back to 24 amp charging. I have a service appointment set for Friday, we'll see what they say. It has me very concerned though that the replacement part only lasted weeks.

I rarely charge at 48amp. I have the wall charger installed, but the way my wife and I park I just use the mobile charger at 28amps. I wonder if 48amp is a contributing factor.

 

[Fleetwood75]

I rarely charge at 48amp. I have the wall charger installed, but the way my wife and I park I just use the mobile charger at 28amps. I wonder if 48amp is a contributing factor.

I charge at 48 amps every single night. But even at that, the first PCS lasted almost two years, why would the second one only last weeks?

 

[MyFirstElectricTesla]

Should we have a poll:

- 110V.
- 220V - 24A: Tesla mobile connector/Wall Connector.
- 220V - 24A: Third party mobile connector.
- 220V - 32A: Tesla MC/Wall Connector.
- 220V - 32A: Third party MC.
- 220V - 40A: Tesla MC/Wall Connector.
- 220V - 40A: Third party MC.
- 220V - 48A: Tesla MC/Wall Connector.
- 220V - 48A: Third party MC.

My PCS is still working AWD FS Apr 2024. I'm charging Powershare/Wall Charger at 48A. Use third party 40A at my sisters' houses. Used to charge with 32A MC came with the truck but not anymore, and Supercharger on road trips.

 

[sys700]

I checked with my SC. They won't proactively replace the part for me unless there's a problem. My VIN is 26xxx, August 2024 build Cyberbeast, but no issues yet (knock on steel).

 

[Ty77064]

Dropped mine off on Saturday for the same problem. VIN: 42XXX, got it Nov 24, non-FS

Tesla wall charger @ 48v

Part scheduled to come in on Wednesday (my actual appointment date). My screen said "AC charging unavailable," but I couldn't DC charge either. So I had no choice but to turn it in. Lucky, my SC was able to find me a loaner car.

They are also changing out my Half-shaft bolts

I wonder what improvements they made to the PCS2

 

[Virtualarry]

Make a service appointment & ignore the date. Drive straight to the service center and they will immediately put you in a longer and install the new PCS & wiring harness, after that it will be good as new, all covered under warranty…. They usually have the parts already in stock because it’s a known issue or overnight shipping, took 1 day to install. I had mine done last week after I got the same error…2024 AWD FS

I have been waiting 11 days for the part in Santa Monica. The truck does not charge at all and is sitting in my garage. Should I just bring it in and force it on them? My service guy is "checking with supervisor" since yesterday and said no update on the part after 11 days. I need a loaner asap as I have not had transportation for 11 days.

 

[Fleetwood75]

I wonder what improvements they made to the PCS2

Me too seeing as how my replacement PCS2 lasted less than a month!

 

[Kevin Burns]

I took my 2024 Foundation Series AWD in based on a recommendation I received on this forum. Other people on this forum told me to just take it in after making an appointment through the Tesla app. The Tesla Service Center was very accommodating. I dropped it off on Wednesday. The service was completed on Monday. They didn’t have a loaner for me, but I live 7 miles from the Service Center, my wife picked me up. Fortunately, I have another Tesla to drive.

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