Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
3Original wording in English
BUICK, CHEVROLET, GMC
This technical bulletin provides a procedure to correct the condition of Super Cruise Unavailable Message with DTC U1615 Set or Stored.
CHEVROLET
This Preliminary information communicates a concern of a false DTC: U1615 setting in the BCM due to a software Anomaly and to ignore this DTC at this time.
CADILLAC, CHEVROLET, GMC
This service bulletin provides repair information to correct a customer concern of Service Driver Assist and/or Take Steering Messages on Start-up, Advanced Driver Assist Systems (ADAS) Features Not Available with DTCs U1614, U1615, U1616 Set.
Check vehicle applicability
14A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | ENCLAVE ↗ | 2025 |
| Cadillac | CT4 ↗ | 2021 |
| Cadillac | CT4 ↗ | 2020 |
| Cadillac | CT5 ↗ | 2021 |
| Cadillac | CT5 ↗ | 2020 |
| Chevrolet | SILVERADO EV ↗ | 2025 |
| Chevrolet | SUBURBAN ↗ | 2021 |
| Chevrolet | TAHOE ↗ | 2021 |
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.