{"nhtsa_id":10217134,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-08-04","date":"2022-07-12","document_id":"01-085","mfr_campaign":null,"replaces":null,"component":"VISIBILITY","mfr_system":null,"summary":"Info Only – Certain 520 model chassis built between 2014 and 2021, and equipped with the Red Dot HVAC system, may have service port spacing which will not allow the connection of a pressure gauge to both the high and low side service ports simultaneously. A specific tool is available from the supplier that will allow a technician to bypass this design issue.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10217134-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10217134-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10217134","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PETERBILT","model":"520","year_from":2014,"year_to":2016,"match":null,"vehicle_ids":[]},{"make":"PETERBILT","model":"520","year_from":2017,"year_to":2022,"match":"exact","vehicle_ids":["2017_peterbilt_520","2018_peterbilt_520","2019_peterbilt_520","2020_peterbilt_520","2021_peterbilt_520","2022_peterbilt_520"]}],"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":[]}