Hummer EV Pickup 3X

301 service bulletins filed with NHTSA for this model year

• Jun 5, 2026UNKNOWN OR OTHERPIT6477C

  This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool

• Jun 3, 2026UNKNOWN OR OTHERPIT6503A

  This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.

• May 29, 2026UNKNOWN OR OTHERPIT6209K

  This Preliminary information communicates recovery procedure after return to dealer message.

• May 27, 2026UNKNOWN OR OTHERPIT6519

  This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications. Engineering is investigating and this PI will be converted to a bulletin when a repair is available.

• May 27, 2026UNKNOWN OR OTHERPIP6117

  This Preliminary Information communicates possible conditions arising from corrosion on the JX310 splice pack that could affect vehicle operation including the ability to start, drive, charge their EV.

• May 21, 2026UNKNOWN OR OTHERPIT6215C

  This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.

• May 19, 2026UNKNOWN OR OTHERPIC6602X

  This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.

• May 14, 2026UNKNOWN OR OTHERPIC6540J

  This Preliminary information communicates to dealers a procedure to reset the radio.

• and 293 more

Source: NHTSA manufacturer communications (technical service bulletins).