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
8Original wording in English
CADILLAC, CHEVROLET, GMC
Reported code forms P2120
This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on or reduced engine power message. Technician may find…
CADILLAC
Reported code forms P2120
This Preliminary Information communication provides information to the technician about vehicles that have Service Stabilitrak Message being displayed in the driver?s information center. Technician may find Diagnostic…
BUICK, PONTIAC
Reported code forms P2120
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
CADILLAC, CHEVROLET, GMC
Reported code forms P2120
GMC: EI08047-INTERMITTENT MIL/SES, DTC(S) P2120, 02122, 02123, 02125, P2127, P2128, P2138 WITH REDUCED ENGINE POWER (REPLACE ACCELERATOR PEDAL). THIS MAY BE CAUSED BY CORROSION AT THE ACCELERATOR PEDAL CONNECTOR. *PE
BUICK, PONTIAC
Reported code forms P2120
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
CADILLAC, CHEVROLET, GMC
Reported code forms P2120
EI08047 - INTERMITTENT MIL/SES, DTC'S P2120, P2122, P2123, P2125, P2127, P2128, P2138 WITH REDUCED ENGINE POWER. *NJ
Check vehicle applicability
119A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | ALLURE | 2009 |
| Buick | ALLURE | 2008 |
| Buick | ALLURE | 2007 |
| Buick | LACROSSE | 2009 |
| Buick | LACROSSE | 2008 |
| Buick | LACROSSE | 2007 |
| Buick | LUCERNE | 2008 |
| Buick | RAINIER | 2004 |
| Cadillac | CTS | 2012 |
| Cadillac | CTS | 2011 |
| Cadillac | CTS | 2010 |
| Cadillac | CTS | 2009 |
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.