There are 2 owner-reported electrical system complaints for the 2021 Audi SQ5in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
MMI not connecting Control module for emergency call module
Comfort Module J393 failed that is tied to all electronics warnings in car. brake warnings, light warning, security warnings, etc. Car was unable to be started as a result. If these electronics failed during driving, its very dangerous and could force crashing of vehicle. According to Dealership, failed module was submerged (ie water flooeded). This is a self contained electronics module that is not exposed to elements. The car was parked in driveway. it rained lightly over the weekend. Then this occurred. the damage and replacement cost was over $10K in damage. Audi dealership stated replacing rear water drain may be kinked or damaged causing water to leak where module located. Its not normal for self contained electronics modules to have this problem.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026