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
23Original wording in English
CHEVROLET, GMC
Reported code forms P2463
This technical bulletin provides repair information to correct a customer concern of an MIL Illuminated in DIC (with DTCs P2463 and P04DB set).
CHEVROLET, GMC
Reported code forms P2463
This technical bulletin provides repair information to correct a customer concern of an MIL Illuminated in DIC (with DTCs P2463 and P04DB set).
CHEVROLET, GMC
Reported code forms P2463
This technical bulletin provides a procedure to correct the condition of Malfunction Indicator Lamp Illuminated with DTCs P2463 P2459 P11FB P11D3.
CHEVROLET, GMC
Reported code forms P2463
This Preliminary information communicates to the dealer technicians that a starting sequence using the key fob / remote may contribute to DTC P2463 setting, the engine running rough and / or lower than expected fuel…
CHEVROLET, GMC
Reported code forms P2463
This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp being illuminated. They may also comment on multiple transmission issues including harsh or delayed shifts,…
CADILLAC, CHEVROLET, GMC
Reported code forms P2463
This informational bulletin provides information on Clean Exhaust Filter See Owner Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
Check vehicle applicability
19A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| GMC | SIERRA 2500 | 2025 |
| GMC | SIERRA 2500 | 2024 |
| GMC | SIERRA 2500 | 2023 |
| GMC | SIERRA 2500 | 2022 |
| GMC | SIERRA 2500 | 2021 |
| GMC | SIERRA 2500 | 2020 |
| GMC | SIERRA 2500 | 2019 |
| GMC | SIERRA 2500 | 2018 |
| GMC | SIERRA 2500 | 2017 |
| GMC | SIERRA 2500 | 2016 |
| GMC | SIERRA 2500 | 2015 |
| GMC | SIERRA 2500 | 2014 |
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.