# Service campaign CC\-26\-90\-01

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service campaign
- NHTSA id: 11028740
- Published by NHTSA: 2026\-02\-11
- Manufacturer's number: CC\-26\-90\-01
- Manufacturer's date: 2026\-02\-09
- Campaign id or software version: ECM Version ID: 621–21–96
- NHTSA component: ELECTRICAL SYSTEM
- Manufacturer's system: powertrain: engine electrical

## NHTSA's summary

BL1035 update, A software update for MY2025 Karma Vehicles

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028740-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028740-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2025 KARMA REVERO

## Other bulletins for the same vehicles and component

- [TB\-26\-90\-01](/bulletins/11036508.md), 2026-08-31, Service bulletin: ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Alignment of headlamps service procedure
- [SC\-26\-01\-01](/bulletins/11035263.md), 2026-07-28, Other: ELECTRICAL SYSTEM. Alert to service centers that 12 volt is no longer stocked in the karma distribution center
- [SC\-26\-01\-01](/bulletins/11035262.md), 2026-07-28, Other: ELECTRICAL SYSTEM. Alert to service centers that 12 volt is no longer stocked in the karma distribution center
- [SC\-25\-01\-01](/bulletins/11026132.md), 2025-12-04, Other: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Information regarding vehicle locked or “Latched” ECMs. Several electronic control units \(“ECUs”\) found in the Karma Revero are configured in such a way that they are latched to a vehicle as assembled from assembly. This means that these units cannot be used in diagnostics by swapping them to a similar build vehicle. Particularly the ECM on the MY25 will now be latched module after BL1030 and can not be swapped between vehicles.
- [SC\-25\-90\-02](/bulletins/11024876.md), 2025-11-04, Service bulletin: ELECTRICAL SYSTEM. Install of recommended 12Volt battery maintainer
- [CC\-25\-94\-02](/bulletins/11015208.md), 2025-03-06, Service campaign: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. A software update for MY2025 Karma Vehicles
- [SC\-25\-90\-01](/bulletins/11015206.md), 2025-03-06, Other: ELECTRICAL SYSTEM. Illustrate access to 12\-Volt power for jump start and charging

JSON: [/v1/bulletins/11028740](/v1/bulletins/11028740)

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