# Service campaign 25\-01\-068H TSB

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: 11023663
- Published by NHTSA: 2025\-10\-03
- Manufacturer's number: 25\-01\-068H TSB
- Manufacturer's date: 2025\-10\-01
- Campaign id or software version: TEK
- NHTSA component: POWER TRAIN

## NHTSA's summary

Certain Tucson Hybrid \(NX4 HEV\) and Tucson Plug\-in Hybrid \(NX4 PHEV\) vehicles may exhibit a condition where the Oil Pump Unit \(OPU\) prevents the Ready Lamp from turning on. Some vehicles may also display DTC U100787 \(malfunction on CAN communication\). This bulletin provides instructions to update the Powertrain Control Unit \(PCU\) software.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023663-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023663-9999.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

U1007

## Vehicles listed

- 2025 HYUNDAI TUCSON HYBRID
- 2025 HYUNDAI TUCSON PLUG\-IN HYBRID

JSON: [/v1/bulletins/11023663](/v1/bulletins/11023663)

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