Karma bulletin TB-24-12-01
What it saysA new bracket is provided to reposition the Diagnostic Module TL for best performance in the vehicle. NHTSA’s full summary ↓
Karma filed this with NHTSA as a service bulletin dated Nov 7, 2024, about the fuel/propulsion system. It names 7 model years (2020–2022). A service bulletin 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 communicationA new bracket is provided to reposition the Diagnostic Module TL for best performance in the vehicle.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TB-24-12-01 | Service bulletin | Nov 7, 2024 | 11010303 | PDF, 6,367 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 themAlso filed against model years this site has no page for: 2021 Karma Revero GS-6; 2022 Karma Revero GS-6; 2021 Karma Revero GT; 2022 Karma Revero GT; 2021 Karma Revero GTS; 2022 Karma Revero GTS.
A 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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More bulletins about the fuel/propulsion system
Source: same model, same component group3 other manufacturer communications filed against these Karma models under the same component group (fuel/propulsion system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TB-24-12-01-.02 | Service bulletin | May 4, 2026 | new component is available, instructions how to install are provided. this is an update to a bulletin from 2024 (TB-24-12-01) |
| K1-25-1030.RC4 | Over-the-air update | Oct 1, 2025 | All MY25 vehicles in the field will all receive this update over the air. updates to the HCU and infotainment for better connection to the m… |
| SC-24-12-01 | Other | Jun 21, 2024 | On complaint of relative Fuel tank isolation valve (“FTIV”) diagnostic trouble codes presented, this guide should aid the technician to bett… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Karma, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Karma TB-24-12-01 a recall?
No. A service bulletin 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 TB-24-12-01 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 TB-24-12-01 cover?
The manufacturer filed it against 7 model years: 2020 Karma Revero, 2021 Karma Revero GS-6, 2022 Karma Revero GS-6, 2021 Karma Revero GT, 2022 Karma Revero GT, 2021 Karma Revero GTS and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.