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.
Manufacturer communications
6Original wording in English
BUICK, CADILLAC, CHEVROLET
Reported code forms U1518
This service bulletin provides repair information to correct a customer concern of Head Up Display (HUD) Blank, Non-Responsive to Brightness, Aim, or Page Controls, DTC U1518 Set.
BUICK, CADILLAC, CHEVROLET
Reported code forms U1518
This service bulletin provides repair information to correct a customer concern of Head Up Display (HUD) Blank, Non-Responsive to Brightness, Aim, or Page Controls, DTC U1518 Set.
CADILLAC
Reported code forms U1518
This technical bulletin provides repair information to correct a customer concern of Head Up Display (HUD) Blank, Non-Responsive to Brightness, Aim, or Page Controls, DTC U1518 Set.
CADILLAC
Reported code forms U1518
This technical bulletin provides repair information to correct a customer concern of Head Up Display (HUD) Blank, Non-Responsive to Brightness, Aim, or Page Controls, DTC U1518 Set.
CHEVROLET
Reported code forms U1518
This Preliminary information communicates that a customer may bring a vehicle in with a complaint of the Heads Up Display (HUD) frozen or inoperative. The dealer technician may find the HUD inoperative and may find no…
BUICK, CADILLAC, CHEVROLET
Reported code forms U1518
This Preliminary information communicates that a customer may bring a vehicle in with a complaint of the Heads Up Display (HUD) frozen or inoperative. The dealer technician may find the HUD inoperative and may find no…
Check vehicle applicability
27A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | LACROSSE | 2019 |
| Buick | LACROSSE | 2018 |
| Buick | LACROSSE | 2017 |
| Cadillac | XT4 | 2023 |
| Cadillac | XT4 | 2022 |
| Cadillac | XT4 | 2021 |
| Cadillac | XT4 | 2020 |
| Cadillac | XT4 | 2019 |
| Cadillac | XT5 | 2023 |
| Cadillac | XT5 | 2022 |
| Cadillac | XT5 | 2021 |
| Cadillac | XT5 | 2020 |
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.
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.