"Slower due to warm plug" message while charging

[Sevn86]

Been getting the same message the past couple of nights. It’s usually parked outside while charging but since I washed it, I’ve been keeping it in the garage. Seems like my garage is too hot for it.

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[ParkCityEV]

I’m having the same issue. I tried unplugging and letting the plug handle cool. Got back up to 11kw for 20 minutes and then it dropped again. Tried charging at night when ambiant air temp is 60 degrees. After 30 minutes, still get warming and slow charge at lower air temp. 2022 Rivian R1T with Rivian charger. Never had this problem last summer. Problem started this year when I got back from a road trip.

Has anyone found a fix?

 

[tk21]

I’m having the same issue. I tried unplugging and letting the plug handle cool. Got back up to 11kw for 20 minutes and then it dropped again. Tried charging at night when ambiant air temp is 60 degrees. After 30 minutes, still get warming and slow charge at lower air temp. 2022 Rivian R1T with Rivian charger. Never had this problem last summer. Problem started this year when I got back from a road trip.

Has anyone found a fix?

I have put in a ticket for this but Rivian hasn’t responded to it outside of “we’ll forward it to our charger team”

I have had the charger 14 months and it started happening about 4 months ago for both my R1S and Pacifica. Happens every time around 17 mins in every time. Frustrating.
Hard wired 48A setup (60A circuit) btw.

 

[brianp6621]

I am seeing this now and don't remember it from before.
We have an R1S and a 48A (60A dedicated circuit/breaker) setup with the Rivian EVSE. We've had it a year and a half. It was in the shop for collision repair for about 8 weeks and we just got it back. It was nearly dead (they don't fully charge at the collision shop) so it needed to charge all night and I have it limited to starting at 12am for energy costs.

When I came out the next morning it had only added 54 kWh in 10hr 50min and was running at 7.1kW. It derated from the max 11kW after 3 hours, after starting at 8PM (on a not particularly hot day)

Again today it de-rated to 7kw after several hours and was still charging that way this morning even though the garage is cool and the plug isn't even really warm.

I'm looking back through my Rivian charge history and seeing data ALL over the place, I'm not sure they're logging is exactly correct when you are using scheduling.

I'll need to look closer at the next charge session because the bar graph doesn't even make sense (and I can't see it anymore, screenshot only as it goes away when you disconnect).

 

[SANZC02]

I have a place out in Coachella Valley where the garage can get pretty hot on those 100 degree plus days. I have noticed when I plug in to charge on L2 if it detects a warm plug it will debate but does not up adjust if it cools back down during that session.

L3 I will see it down adjust and up adjust but not on L2.

 

[brianp6621]

I have a place out in Coachella Valley where the garage can get pretty hot on those 100 degree plus days. I have noticed when I plug in to charge on L2 if it detects a warm plug it will debate but does not up adjust if it cools back down during that session.

L3 I will see it down adjust and up adjust but not on L2.

That's definitely a problem but in my scenario with the garage temps at night, there is no reason it should be de-rating in the first place.

 

[ParkCityEV]

I had the rivian home charger for two years. No issues.

One day i got this warning. Garage ambient temp was 65 degrees. Happened every time after about 20 minutes of charging - 10.1 to 7.1 kw. Did not have issue with commercial chargers with direct sun and 90 degrees.

The rivian charger went bad. It took 2 months to get it warrantied but the problem went away with a replacement.

 

[Swezey]

I'm having a similar problems with derated charging.

My wife's Lyriq will charge w/o issue at 11.2 kW on the same charger (Rivian's).
My R1T: I noticed this summer started throttling back to 7.2kW.

On a hot, TX summer day - I can respect that. But when it's only in the mid 70s or 80s, parked under full shade, and still happening? Or even at night time? (not in the garage)

I kept an eye on during this cooler weather. Kept it at 11.2 the entire time. So it's definitely temperature related; it seems at least.

I have a scheduled apt on the 22nd, but I'm tempted to cancel it as I dont want to waste my or their time with "cannot reproduce".

 

[DrMario]

I don't think it is temperature related. I have been having the same issue. My R1T is in a climate controlled garage and after 1 to 2 hours of charging it goes from 11 KW down to 7 KW. I have been trying to find somewhere else with a charger to test and see if it is the R1T or the actual charger.

 

[electruck]

When my garage temps are mid-80s or above, I have to set the vehicle to charge at 40A to prevent it from throttling all the way down to 30A. However, the other night with garage temp in the 50s I charged from 10-70% at 48A with no throttling.

 

[LNJ]

I’m have my the same derating issue. Charge starts at 11kw then after about an hour it goes down to 7 or even 5 kw, even with garage temp at 65. When temp gets into the 50s it will charge normally, most of the time. I unfortunately realize in AZ summer this is a common Rivian issue but in the colder months this has never been an issue for me in the past. I submitted a service request for it but a Rivian rep called and tried to convince me it was my charger, not a Rivian problem. I tried to explain the charger has never had any derating issues charging other evs, summer or winter. That didn’t change her opinion, she was determined to cancelled my service request. She did vaguely mention an upcoming update may take care of it, but then wouldn’t say anything else about that. It was a weird exchange to say the least and the only negative experience I’ve had with Riv service. I’ll give it until next update and the problem persists will try to schedule service again

 

[Swezey]

My R1T is in service as of yesterday for this issue. Plus I discovered the rear passenger door trim was coming off due to adhesive failure.

I noticed this morning they tested the charging at least 4x times. In the middle of those tests, they actually re-installed the latest update. Best guess is they are working through the troubleshooting steps hoping it's a SW issue that can be resolved before they go deeper into the HW side of things.

Good news - finally got an R1 loaner! A '22 Forest Green w/ green interior. Offroad wheels. And the camp speaker that won't stop chirping

Usually they stick me with Enterprise due to the loaners being all taken. The last one was the Chevy EV which died in my driveway. Lmao. Had to trickle charge the main 12v to get it to come back to life.

I'll post an update when I find out more.

 

[Swezey]

Update.

They had to order a new "Charge Port Harness" and replace that. Then will conduct further testing to validate the issue is resolved.

I'm just happy I wasn't paranoid

 

[GriffJP]

I feel like I have been having the same issue since the October Halloween update but more consistently since the most recent update. I use a Rivian branded charger that I've had since May 2022 that was installed by an electrician. It's on a 60 amp circuit with the upgraded wiring to make sure it could handle it and it's been working flawlessly on my Gen1 Launch Edition and up until the last couple months on my Gen 2 Tri-Motor Ascend. Every once in a while it will charge at 11.2 kW which corresponds to approximately 25 miles of range per hour but most of the time it'll start out at 11 and then derate to 7 and sometimes even 3 kwh. The plug does not feel excessively warm when I touch it. I have reset the software on the Rivian, I have restarted the Rivian using the restart procedure, I have flipped the circuit breaker on the charger several times to reset that as well. I've not been able to connect my charger to Wi-Fi since I've had it so I can't say I've been able to download any firmware updates but it's been working fine up until now independent of that. I am hoping to that it's just a software update issue. I'm in the middle of a string of night shifts right now so I don't want to call Rivian and have them push an update or patch that bricks my truck and I can't get to work. But this coming Monday I'm off I'll give them a call and see if they can re-push the update as some other folks and some other threads have said that reinstalling the most recent update has helped their issue.
For all these people having this issue, if you find a consistent solution please share and I will do the same if Rivian gives me an answers to why this is happening when I discuss it with them.

 

[Swezey]

I'm back home after picking up my Riv.

They replaced the entire charging harness and since they had to dig into the vehicle, they had to do an alignment afterwards (included in the warranty).

They did note the temp sensors were reading inaccurately. These were part of the replacement.

They had me adjust the charge % to 100 when I got home and plug her in. So far she's holding steady at 11 kW at an ambient temp of 78*F today in Austin after a 25 minute drive home.

I'll keep an eye on it and report back in a month or so if the problem is fixed or not. Pending on weather conditions. They also did the knuckle fasteners (again? - could have sworn they already did these at an early visit).

Window trim has also been replaced successfully

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