P1098: owner reports and bulletins

Powertrain (manufacturer-specific). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P1098 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

52 complaints filed with NHTSA mention P1098, 51 of them since 2015, across 9 different models. The component owners most often filed it under: engine.

Most-reported models

VehicleComplaintsModel years reported
GMC SIERRA 1500222021, 2022, 2023
CHEVROLET SILVERADO 1500192020, 2021, 2022, 2023, 2026
CHEVROLET TAHOE42022

Manufacturer service bulletins that name P1098

35 technical service bulletins and manufacturer communications filed with NHTSA mention P1098, from 4 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • CADILLAC ESCALADE ESV (2021, 2022), bulletin 10210580: This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
  • CHEVROLET SILVERADO 1500 (2020, 2021, 2022), bulletin 10210580: This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
  • GMC SIERRA 1500 (2021, 2022), bulletin 10210580: This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
  • GMC YUKON (2021, 2022, 2020), bulletin 10215648: This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
  • CADILLAC ESCALADE NA (2021, 2022), bulletin 10215648: This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
  • CHEVROLET BLAZER (2020, 2019, 2021), bulletin 10176324: This Preliminary information communicates to the dealer thatacustomermay comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software…

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.