Tahoe 4WD

995 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

• 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 19, 2026UNKNOWN OR OTHERPIC6602X

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

• May 15, 2026UNKNOWN OR OTHERPIT6209J

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

• May 14, 2026UNKNOWN OR OTHERPIT6406K

  This Preliminary Information communicates direction for different audio issues with RPO UQA, UQF, UQS, or NKD

• May 14, 2026UNKNOWN OR OTHERPIT5509M

  This PI provides diagnostic tips for diagnosing electric trailer brakes issues.

• May 11, 2026UNKNOWN OR OTHERPIT6513

  This PI states that if SDGM DTC U3000 Sym 49 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.

• and 987 more

Source: NHTSA manufacturer communications (technical service bulletins).