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Service bulletins for the 2007 GMC Yukon

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1313 on file from NHTSA, as of 2026-10-19.

About P2138 on the 2007 GMC Yukon: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P2138 are shown. Show all

Bulletins, newest first
070604019F2018-06-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 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.
07-06-04-019E2017-08-15. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. 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.
PIP3783D2017-08-15. Service bulletin. ENGINE; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. 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 Diagnostic Trouble Codes P2120, P2122, P2123, P2125, P2127, P2128, and/or P2138. Technician will need to inspect the Accelerator Pedal Position circuits for poor terminal tension.
SB-07-06-04-019A2009-06-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:ENGINE. GENERAL MOTORS: INTERMITTENT MIL/SES/ DTC P2138 WITH REDUCED ENGINE POWER (REPAIR INSTRUMENT PANEL (IP) TO BODY HARNESS CONNECTOR). 2005-08 GM PASSENGERS CARS/LIGHT DUTY TRUCKS (INCL. SATURNS). *PE UPDATED 11/5/10. *PE UPDATED 4/4/11. *PE UPDATED 2/3/16. *PE
08-06-04-012B2008-11-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. 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
08-06-04-0122008-05-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. EI08047 - INTERMITTENT MIL/SES, DTC'S P2120, P2122, P2123, P2125, P2127, P2128, P2138 WITH REDUCED ENGINE POWER. *NJ

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.