Rivian bulletin SOC IMBALANCE
What it saysSMS sent to LFP owners impacted by SOC Imbalance alerting them that their efforts have resolved their HV Battery Pack concern and may charge normally. NHTSA’s full summary ↓
Rivian filed this with NHTSA as a manufacturer communication dated Jan 16, 2026, received Feb 7, 2026, about the electrical system — 1 document under this number: LFP SOC Imbalance Resolve. It names 2 model years (2025). A manufacturer communication is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationSMS sent to LFP owners impacted by SOC Imbalance alerting them that their efforts have resolved their HV Battery Pack concern and may charge normally.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LFP SOC Imbalance Resolve | Other | Jan 16, 2026 | 11028630 | PDF, 57 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 64 complaints with NHTSA since 2015. 11 of them name Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
In late May 2025, I took delivery of a new leased 2025 Rivian R1S equipped with the MaxPack battery. Since delivery, the vehicle has had intermittent electrical issues with the USB-C ports that I reported on June 12th (approx 3 weeks from taking delivery), but on July 28, 2025, it experienced a sudden and complete electrical system…
2025 Rivian R1S · Electrical System · filed with NHTSA Aug 11, 2025 · ODI 11679876
This vehicle has experienced two separate failures of the high-voltage (HV) battery pack, each resulting in a different drive unit being damaged and total loss of electrical systems while driving. First incident (July 28, 2025): While driving, all warning lights illuminated and the vehicle indicated a possible electrical hazard.
2025 Rivian R1T · Electrical System · filed with NHTSA Jun 29, 2026 · ODI 11747254
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the electrical system
Source: same model, same component group16 other manufacturer communications filed against these Rivian models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Rivian list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| FSAM-1712 | Service bulletin | Aug 6, 2026 | Rivian is initiating a customer satisfaction campaign for some model year 2025 vehicles that may have a loose or cross-threaded ground nut i… |
| FSAM-1785 | Service bulletin | May 19, 2026 | Rivian is launching a technical service bulletin for some model year 2022-2024 R1 vehicles that may have ultrasonic sensors detached from th… |
| FSAM-1755 | Service campaign | Mar 5, 2026 | Rivian is initiating a customer satisfaction campaign for some model year 2023-2024 R1T vehicles that were built with a rear zone control mo… |
| 12v Battery Low SMS 2 | Other | Feb 17, 2026 | SMS Reminder sent to customers who had still open potential 12-volt failures. |
| 12v Battery Low SMS 1 | Other | Feb 9, 2026 | SMS sent to customers with potential 12-volt failure and advising need for replacement to avoid drivability interruptions. |
| FSAM-1635 | Service campaign | Nov 14, 2025 | FSAM-1635 3-Day SMS ● Message 1: ● Urgent Notice from Rivian: Action required for your R1. Our records indicate the 12V battery in your vehi… |
| RCA-78-25-004-1 | Service campaign | May 13, 2025 | Rivian is initiating a customer satisfaction campaign for some model year 2025 R1T and R1S vehicles that may have been built with upper and… |
| RCA-78-25-003-1 | Service campaign | May 6, 2025 | Rivian is initiating a customer satisfaction campaign for some model year 2023-2025 R1T and R1S vehicles. These vehicles may have been built… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Rivian, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Rivian SOC IMBALANCE a recall?
No. A manufacturer communication is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the SOC IMBALANCE repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does SOC IMBALANCE cover?
The manufacturer filed it against 2 model years: 2025 Rivian R1S, 2025 Rivian R1T. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.