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
12Original wording in English
CHEVROLET
Reported code forms U18A2
This service bulletin provides repair information to correct a customer concern of Service Engine Soon Illuminated in DIC and/or a Malfunctioning Fuel Gauge with DTC U0076/U18A2/P1001/P1434 or Other Message Counter…
CHEVROLET
Reported code forms U18A2
This service bulletin provides repair information to correct a customer concern of Service Engine Soon Illuminated in DIC and/or a Malfunctioning Fuel Gauge with DTC U0076/U18A2/P1001/P1434 or Other Message Counter…
CHEVROLET
Reported code forms U18A2
This service bulletin provides repair information to correct a customer concern of Service Engine Soon Illuminated in DIC and/or a Malfunctioning Fuel Gauge with DTC U0076/U18A2/P1001/P1434 or Other Message Counter…
CHEVROLET, GMC
Reported code forms U18A2
This technical bulletin is providing a procedure to reprogram the ECM to correct a condition of Runs Rough Cold or Stall Condition Upon Cold Start and/or DTC U18A2 Set (North America /Middle East- Terrain Only).
CHEVROLET, GMC
Reported code forms U18A2
This technical bulletin is providing a procedure to reprogram the ECM to correct a condition of Runs Rough Cold or Stall Condition Upon Cold Start and/or DTC U18A2 Set (Mexico Only) due to software concerns.
CHEVROLET, GMC
Reported code forms U18A2
This technical bulletin is providing a procedure to reprogram the ECM to correct a condition of Runs Rough Cold or Stall Condition Upon Cold Start and/or DTC U18A2 Set (North America Only).
Check vehicle applicability
54A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Cadillac | ESCALADE | 2018 |
| Cadillac | ESCALADE | 2017 |
| Cadillac | ESCALADE | 2016 |
| Cadillac | ESCALADE | 2015 |
| Cadillac | ESCALADE ESV | 2016 |
| Cadillac | ESCALADE ESV | 2015 |
| Chevrolet | EQUINOX | 2020 |
| Chevrolet | EQUINOX | 2019 |
| Chevrolet | EQUINOX | 2018 |
| Chevrolet | EQUINOX | 2013 |
| Chevrolet | MALIBU | 2025 |
| Chevrolet | MALIBU | 2024 |
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.