{"nhtsa_id":10150566,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-10","date":"2018-10-10","document_id":"18316","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR:DISC; ELECTRICAL SYSTEM; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING","mfr_system":null,"summary":"18316 - Customer Satisfaction Program. Certain 2018 model year Chevrolet Express and GMC Savana vehicles, equipped with 4 wheel disc brakes, may have a condition where when the right rear wheel is driven over rumble strips a vibration in the rear axle causes the right rear wheel speed sensor (WSS) to produce an erratic signal. The ABS, Stabilitrak and Traction Control lights will illuminate on the Instrument Panel and set ABS Diagnostic Trouble Code C0050 0F. The Service Stabilitrak and Service Traction Control message may also be shown on the Driver Information Center. ABS, Stabilitrak, and Traction Control functionality would not be available until the next ignition cycle. Dealers will reprogram the electronic brake control module (EBCM) with an updated calibration.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150566-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150566-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10150566","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"electrical","name":"Electrical system","parent":null},{"id":"abs","name":"Anti-lock brakes","parent":"brakes"},{"id":"wheel-speed-sensor","name":"Wheel speed sensor","parent":"brakes"}],"codes":["C0050"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_chevrolet_express"]},{"make":"GMC","model":"SAVANA","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_gmc_savana"]}],"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":[]}