{"nhtsa_id":10190308,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-15","date":"2017-10-01","document_id":"17-NA-329","mfr_campaign":null,"replaces":null,"component":"FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL:SOFTWARE; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR","mfr_system":null,"summary":"Forward Collision Alert Inoperative, Unwanted Application of Emergency Brakes and/or Adaptive Cruise Control Drops Out Condition Some customers may comment on one or more of the following conditions: • Forward Collision Alert (red light and alarm) is late or does not come occur. • Vehicle applies emergency brakes with no vehicle in front in areas with overhead structures. • Adaptive Cruise control drops out in barren landscape areas. Adaptive Cruise Control Temporarily Unavailable message appears in the IP. Cause This condition may be due to one of the following: • Software occasionally takes longer than normal to identify a potential collision situation. • Radar reflections look like an actual vehicle causing a brief activation of brakes. • Radar does not see enough reflections so it assumes it is blocked and goes offline. Correction An updated software calibration has been released to address these conditions. A learn procedure (“service alignment” or “service calibration”) is not required.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10190308-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10190308-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10190308","components":[{"id":"driver-assistance","name":"Driver assistance","parent":null},{"id":"adaptive-cruise","name":"Adaptive cruise control","parent":"driver-assistance"}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"LACROSSE","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_buick_lacrosse","2018_buick_lacrosse"]},{"make":"CADILLAC","model":"XT5","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_cadillac_xt5","2018_cadillac_xt5"]},{"make":"GMC","model":"ACADIA","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_gmc_acadia","2018_gmc_acadia"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}