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P0326 on the 2016 GMC Canyon

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 P0326
PIP5529B2019-10-15. Service bulletin. This Preliminary information communicates additional diagnostics and repair to assist in resolving a malfunction indicator lamp illumination due to any combination of diagnostic trouble codes P0068 P0101 P0106 P0171 P0131 P0137 P0324 P0326 P0331 P0506.
PIP5529A2018-03-12. Service bulletin. This Preliminary information communicates additional diagnosticsand repairto assist in resolving a malfunction indicator lampillumination due to any combination of diagnostic trouble codes P0068 P0101 P0106 P0171 P0131 P0137 P0324 P0326 P0331 P0506.
PIP55292017-11-14. Service bulletin. This Preliminary information communicates additional diagnosticsand repairto assist in resolving a malfunction indicator lampillumination due to any combination of diagnostic trouble codes P0068 P0101 P0106 P0171 P0131 P0137 P0324 P0326 P0331 P0506.
PIP54202017-05-19. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A SPARK KNOCK NOISE ON SLIGHT ACCELERATION AND THAT THIS CONDITION MAY BE MORE NOTICEABLE UPHILL OR WHILE UNDER LOAD, AND THAT DIAGNOSTIC TROUBLE CODE P0326 MAY BE STORED IN HISTORY AS WELL. DEALER SHOULD ROAD TEST THE VEHICLE TO DUPLICATE THE CONCERN AND IF IT CAN BE DUPLICATED CAPTURE A SESSION FILE WITH GLOBAL DIAGNOSTICS SYSTEM 2 AND CONTACT GENERAL MOTORS TECHNICAL ASSISTANCE TO OPEN A CASE AND UPLOAD THE FILE. TECHNICIAN MAY THEN CLEAR THE CODES AND RELEASE THE VEHICLE TO THE CUSTOMER, NOTIFYING THEM THAT THE USE OF PREMIUM FUEL MAY TEMPORARILY CORRECT THE CONDITION.

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.