B2699: owner reports and bulletins

Body. We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got B2699 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

No consumer complaints filed with NHTSA mention B2699. That usually means it's rare, or owners don't quote the code when they file.

Manufacturer service bulletins that name B2699

14 technical service bulletins and manufacturer communications filed with NHTSA mention B2699, from 3 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • CADILLAC ESCALADE ESV (2015, 2016, 2017, 2018), bulletin 10174858: This Preliminary Information communication provides information to the technician about vehicles that may have multiple messages on the driver information center Service Parking Assist System, Service Adaptive Cruise Con…
  • CHEVROLET SILVERADO (2017, 2014, 2015, 2016), bulletin 10161005: This Preliminary Information communication provides information to the technician about vehicles that have either the truck or the snowplow's headlights are flickering or inoperative. There may be a diagnostic trouble co…
  • GMC SIERRA (2017, 2014, 2015, 2016), bulletin 10161005: This Preliminary Information communication provides information to the technician about vehicles that have either the truck or the snowplow's headlights are flickering or inoperative. There may be a diagnostic trouble co…
  • CHEVROLET SILVERADO 1500 (2014, 2015), bulletin 10114530: This Preliminary Information communication provides information to the technician of the snow plow headlamps inoperative after switching from the factory headlamps to the snowplow headlamps. There may be a diagnostic tro…
  • GMC SIERRA 1500 (2014, 2015), bulletin 10114530: This Preliminary Information communication provides information to the technician of the snow plow headlamps inoperative after switching from the factory headlamps to the snowplow headlamps. There may be a diagnostic tro…

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.