# Service bulletin 24\-NA\-166

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 bulletin
- NHTSA id: 11025974
- Published by NHTSA: 2025\-12\-02
- Manufacturer's number: 24\-NA\-166
- Manufacturer's date: 2025\-11\-07
- NHTSA component: WHEELS; ELECTRICAL SYSTEM

## NHTSA's summary

This technical bulletin provides repair information to correct a customer concern of DTC C1171 C1172 C1173 C1174 Tire Pressure Monitor Sensor Unable to Relearn Ethernet Cable Overlay for TCP OnStar Module.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025974-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025974-9999.pdf)

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

## Components

Electrical system, Wheels

## Trouble codes named

C1171, C1172, C1173, C1174

## Vehicles listed

- 2025 to 2026 BUICK ENCLAVE
- 2024 to 2026 CHEVROLET TRAVERSE
- 2024 to 2026 GMC ACADIA

## Other bulletins for the same vehicles and component

- [25\-NA\-156](/bulletins/11026104.md), 2025-12-04, Service bulletin: WHEELS. This service bulletin provides information on Tire Sidewall Irregularities.
- [25\-NA\-021](/bulletins/11026043.md), 2025-12-03, Service bulletin: ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of Radio Software Update W23E\-178.1.2\-M174\-SQBR6\-93.3.
- [24\-NA\-272](/bulletins/11026032.md), 2025-12-03, Service bulletin: ELECTRICAL SYSTEM; BACK OVER PREVENTION: WARNINGS. This technical bulletin provides repair information to correct a customer concern of Park Assist False Alerts on Z71 Traverse.
- [25\-NA\-074](/bulletins/11024333.md), 2025-10-16, Service bulletin: ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Some customers may comment on rear body structure stop lamp or rear closure signal lamp may be totally inoperative or staying illuminated.
- [24\-NA\-166](/bulletins/11020422.md), 2025-07-08, Service bulletin: ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of DTC C1171 C1172 C1173 C1174 Tire Pressure Monitor Sensor Unable to Relearn Ethernet Cable Overlay for TCP OnStar Module.
- [24\-NA\-244](/bulletins/11019745.md), 2025-06-26, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This bulletin provides a procedure to program the PCM to latest software to correct a condition of cold start rough idle w/DTC P050D.
- [22\-NA\-242](/bulletins/11019545.md), 2025-06-16, Service bulletin: ELECTRICAL SYSTEM. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
- [25\-NA\-043](/bulletins/11019462.md), 2025-06-11, Service bulletin: SEATS; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on K313 Occupant Presence Module Information When Setting DTCs.
- [24\-NA\-176](/bulletins/11019459.md), 2025-06-11, Service bulletin: STEERING; ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of Turn Signal Over Cancelling.
- [24\-NA\-142](/bulletins/11019379.md), 2025-06-07, Service bulletin: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; ELECTRICAL SYSTEM; STEERING. This technical bulletin provides repair information to correct a customer concern of Steering Wheel Oscillation while in Super Cruise Mode.

JSON: [/v1/bulletins/11025974](/v1/bulletins/11025974)

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