WenmarOpen by Wenmar Pro

P2101 on the 2017 GMC Yukon XL

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.

Bulletins for this model year that name P2101
18NA0372019-04-22. Service bulletin. This Bulletin provides ECM reprogramming information to Correct DTC P2101.
PIP5501B2019-04-08. Service bulletin. This Preliminary information communicates Vehicles may be setting DTC P2101 falsely. In 2017 the K2XX introduced a “ Driver Door Open Prime ” (DDOP) feature that improves cold startability. The engineering investigation has determined that an intermittent pulse on the ECM RUN/CRANK input (during vehicle door unlock), initializes the Electronic Throttle Control (ETC) diagnostics that falsely sets P2101 when the DDOP occurs as the customer opens the driver door. Many of the reported P2101 failures show that the vehicle battery was in a reduced charge state (new dealer stock or extended radio operation with the engine off). Run the engine for 1 minute, soak the vehicle for 5 hours (required to re-initialize the DDOP) and verify that the P2101 does not reset. Return the vehicle to the customer
PIE04152018-05-21. Service bulletin. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of DTC P2101 Throttle Actuator Position Performance Set.
18NA0372018-05-21. Service bulletin. This Bulletin provides ECM reprogramming information to Correct DTC P2101.

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.