P2089: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P2089 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

1 complaints filed with NHTSA mention P2089, 1 of them since 2015, across 1 different models. The component owners most often filed it under: electrical system.

Manufacturer service bulletins that name P2089

9 technical service bulletins and manufacturer communications filed with NHTSA mention P2089, from 3 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • CADILLAC ESCALADE (2020), bulletin 10174855: This Preliminary information communicatesThe vehicle may have an SES lamp with any of the following DTCP06DA, P06DB, P06DC, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Possi…
  • CHEVROLET CAMARO (2020), bulletin 10174855: This Preliminary information communicatesThe vehicle may have an SES lamp with any of the following DTCP06DA, P06DB, P06DC, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Possi…
  • GMC SIERRA 1500 (2020), bulletin 10174855: This Preliminary information communicatesThe vehicle may have an SES lamp with any of the following DTCP06DA, P06DB, P06DC, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Possi…
  • CADILLAC CTS-V (2018), bulletin 10129856: This Preliminary information communicatesThe vehicle may have an ses lamp with any of the following DTC P06DA, P06DB, P06DC, P06B6, P06B7, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/…
  • GMC SIERRA 3500 (2018), bulletin 10129856: This Preliminary information communicatesThe vehicle may have an ses lamp with any of the following DTC P06DA, P06DB, P06DC, P06B6, P06B7, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/…
  • CHEVROLET SUBURBAN (2018), bulletin 10145475: This Preliminary information communicatesThe vehicle may have an ses lamp with any of the following DTC P06DA, P06DB, P06DC, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Poss…

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.