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
7Original wording in English
CHEVROLET, GMC
Reported code forms P041B
This service bulletin provides a service procedure to correct a customer concern of the Malfunction Indicator Lamp (MIL) Illuminated - DTC P062F, P040B, P041B, P0422, P060C, P062B, P1428, P142A, P20EE, P20FE, P22F9,…
CHEVROLET
Reported code forms P041B
32340B ? Service Update Bulletin (Service Procedure Revised). An engine misfire condition could occur on these vehicles causing the check engine/service engine soon light to illuminate, a rough or high idle condition,…
CHEVROLET
Reported code forms P041B
32340B – SERVICE UPDATE BULLETIN (SERVICE PROCEDURE REVISED). AN ENGINE MISFIRE CONDITION COULD OCCUR ON THESE VEHICLES CAUSING THE CHECK ENGINE/SERVICE ENGINE SOON LIGHT TO ILLUMINATE, A ROUGH OR HIGH IDLE CONDITION,…
CHEVROLET
Reported code forms P041B
32340A - SERVICE UPDATE (REVISED TO ADD 2016 MODEL YEAR VEHICLES). AN ENGINE MISFIRE CONDITION COULD OCCUR CAUSING THE CHECK ENGINE/SERVICE ENGINE SOON LIGHT TO ILLUMINATE, A ROUGH OR HIGH IDLE CONDITION, AND DIAGNOSTIC…
CHEVROLET
Reported code forms P041B
28340 - SERVICE UPDATE. RRPROGRAM THE ENGINE CONTROL MODULE. AN ENGINE MISFIRE CONDITION COULD OCCUR DURING THE ENGINE MAINTENANCE MODE (EMM) AFTER THE VEHICLE HAS BEEN SITTING FOR AN EXTENDED PERIOD OF TIME CAUSING THE…
CHEVROLET
Reported code forms P041B
Malfunction Indicator Lamp (MIL) On, Possible P0300, P040B, P041B, P01427 and/or P1429 TDCs Set
Check vehicle applicability
6A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chevrolet | SILVERADO 2500 | 2024 |
| Chevrolet | SILVERADO 3500 | 2024 |
| Chevrolet | VOLT | 2017 |
| Chevrolet | VOLT | 2016 |
| GMC | SIERRA 2500 | 2024 |
| GMC | SIERRA 3500 | 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.