Software and module faults across the vehicle
- Typically appears
- 30,000+ miles
- What to inspect
- Run a full diagnostic scan and confirm updates

The modern Defender is electronics heavy, so a full diagnostic scan is essential.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
The most commonly reported faults on the 2020–2025 Land Rover Defender are Software and module faults across the vehicle, Air suspension leaks and compressor faults and Leaks around the roof and rear door seals. 2 of the documented issues are rated high severity · inspect these first. Full inspection points, onset mileage and what to check are listed below.
Based on the documented faults on this page for the Land Rover Defender.
Guidance only · reflects reported patterns, not a specific car's condition.
Software and module faults across the vehicle
Air suspension leaks and compressor faults
Leaks around the roof and rear door seals
Heavy pad and disc wear
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Check this exact carBetter than the old model, but electronics still dominate faults.
A dealer level diagnostic scan with software version confirmed.
Yes, demand is strong for clean examples.
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.