U160F on GMC
On GM trucks and SUVs, U160F means lost communication with brake system control module 1 on CAN bus 1
Severity: Inspect soon
The code means the brake control module dropped off the network, and owners report many lost-communication codes with it, stability control faults and, in one case, loss of drive power, so braking and drive systems can be affected.
It gets more serious if:
- Stop: Stop if brake or stability warnings appear with a loss of power, steering assist or other modules: pull over safely and arrange a tow.
This page covers only what differs on GMC. For what U160F means, the ranked causes and the test order, see the U160F guide.
What's different on GMC
GMCYour car
2025 · Sierra 1500
Supported by vehicle dataAn owner lists U160F with U1611 and many lost-communication codes.
2023 · Yukon
Supported by vehicle dataAn owner lists U160F and U1610 with 27 active codes and stability control disabled.
Sources and review
- NHTSA complaint ODI 11746696: 2025 GMC Sierra 1500
- NHTSA complaint ODI 11728908: 2023 GMC Yukon
- NHTSA complaint ODI 11546032: 2023 Chevrolet Suburban
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error