2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated June 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 SEAT Leon has 1 documented known issues. No issues are rated critical, indicating generally reliable ownership. Across all issues, repair costs range from $ to $900. DIY maintenance guides at au7o.io.
On the 2014-2023 SEAT Leon, mk3 (5F) and especially Mk4 (KL) Leons are widely reported for infotainment problems: the head unit switching on and off repeatedly, freezing/crashing, unresponsive touchscreens and loss of media/USB function. On the Mk3 dealers acknowledged a known software fault; on the Mk4 the larger glass touchscreen system suffers unresponsiveness and occasional complete failures. Some owners also report associated battery drain when the unit fails to sleep properly.
Apply the latest SEAT infotainment software update at a dealer; a hard reset or fuse pull can temporarily restore function. Persistent hardware failures require head-unit replacement. For drain, check that the unit enters standby and inspect related fuses/wiring.
Don't see your problem? Describe your symptoms to get a diagnosis, or get a full repair guide.
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021-2021 SEAT Leon has 1 documented issues. The most frequently reported are: Infotainment / Media System Faults and Touchscreen Failures. None are rated critical, but regular maintenance is recommended.
The 2021-2021 SEAT Leon has 1 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known SEAT Leon issues range from $0 to $900, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
Mk3 (5F) and especially Mk4 (KL) Leons are widely reported for infotainment problems: the head unit switching on and off repeatedly, freezing/crashing, unresponsive touchscreens and loss of media/USB function. On the Mk3 dealers acknowledged a known software fault; on the Mk4 the… Repairs typically run $0-$900. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
