MD HB843

Manufacturers must make the same diagnostic and repair information, tools, and software available for purchase by vehicle owners and independent repair facilities that they provide to their authorized dealers, on daily, monthly, or yearly subscription basis at fair and reasonable terms

Vehicles with telematics systems starting with model year 2025 must have a standardized open data platform installed by an independent third party, allowing owners to easily access vehicle data and authorize independent repair shops to perform diagnostics and repairs

Manufacturers may exclude security-related information (such as immobilizer reset codes) from required disclosures, with owners and independent shops able to obtain such information through the National Automotive Service Task Force instead

The Consumer Protection Division must develop a disclosure document explaining telematics systems and consumer rights, which dealers must provide to buyers at time of purchase

Violations constitute unfair or deceptive trade practices under Title 13 of the Commercial Law Article, with manufacturers given 30 days to cure failures after written notice through the National Automotive Service Task Force process before litigation may proceed