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
4Original wording in English
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC, SAAB, SATURN
Reported code forms P2138
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power…
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC, SAAB, SATURN
Reported code forms P2138
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power…
BUICK, PONTIAC
Reported code forms P2138
GENERAL MOTORS: MALFUNCTION INDICATOR LAMP-CHECK ENGINE LIGHT ON, HESITATION, REDUCED ENGINE POWER MESSAGE, DTCS P1125, P2101, P2120, P2125 OR P2138 SET (PERFORM REPAIR AS OUTLINED). *PE
BUICK, PONTIAC
Reported code forms P2138
GMC:SERVICE ENGINE SOON LIGHT AND DTC P1125, P2101, P2120, P2125, OR P2138. THE VEHICLE WAS EXHIBITING A HESITATION AND/OR HAD THE REDUCED POWER MODE SYMBOL OR MESSAGE DISPLAYED. *PE
Check vehicle applicability
4A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Pontiac | GRAND PRIX | 2008 |
| Pontiac | GRAND PRIX | 2007 |
| Pontiac | GRAND PRIX | 2006 |
| Pontiac | GRAND PRIX | 2005 |
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.