P2138 on the 2008 Buick LaCrosse
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 070604019F | 2018-06-04. Service bulletin. 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 displayed and DTC P2138 set. |
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| 07-06-04-019E | 2017-08-15. Service bulletin. 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 displayed and DTC P2138 set. |
| SB-08-06-04-041B | 2009-05-22. Service bulletin. 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 |
| PIC-4343B | 2008-12-02. Service bulletin. 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 |
4 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.