Ascent

145 service bulletins filed with NHTSA for this model year

• May 28, 2026ELECTRICAL SYSTEM18-241-26

  This Bulletin announces a correction to the diagnostic procedures for certain CVT related DTCs, including P0730, P0746, P0747, P0841, P0846, P0867, P1867, P1894, and P2723.

• May 18, 2026UNKNOWN OR OTHER01-167-08R

  This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.

• May 13, 2026ENGINE02-193-24R

  This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers).

• May 12, 2026POWER TRAIN16-157-26

  This bulletin announces a design change to the TR690 CVT control valve body which features an enhanced line pressure sensor O-ring, designed to prevent abnormal sensor readings caused by O-ring leakage.

• May 4, 2026POWER TRAINSubaruNet Announcement (R

  This announcement provides information on the remanufactured CVT transmission program.

• May 1, 2026ENGINE18-230-26

  This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT) are detected by Keyless Access with Push Button Start(KACM).

• Apr 30, 2026UNKNOWN OR OTHER07-240-26R

  This Service Information Bulletin was developed to provide interim guidance for vehicles exhibiting DTC B2A20.

• Apr 20, 2026WHEELS05-97-26

  This Bulletin provides the diagnostic procedures to be followed when addressing customer concerns of steering wheel/vehicle body vibration when driving at highway speeds when tire/wheel balance is suspected.

• and 137 more

Source: NHTSA manufacturer communications (technical service bulletins).