Software updates for the Powertrain Control Module (PCM) are necessary to address potential engine stalling issues. While a remedy exists, it involves disabling diagnostic functions, which may mask underlying problems. Estimated repair cost: $200 - $500.

Seat Belt Retractor Malfunction

Numerous recalls address seat belt retractors, indicating potential issues with their functionality. This impacts occupant safety and the security of child restraint systems. Estimated repair cost: $300 - $800.

CARFOCALvehicle research

2021 Land Rover Defender Maintenance guide

Name: Maintenance dataset for 2021 Land Rover Defender
Creator: Carfocal

v1.0Updated Jun 11, 2026Ethan Miller4 Sources Analyzed3 Critical Recalls

MAINTENANCE SUMMARY

The 2021 Land Rover Defender requires diligent maintenance, with a notable focus on addressing potential engine cam carrier oil leaks and DC-DC converter failures. Regular inspections and adherence to service schedules are critical for mitigating these risks.

View Critical Issue: Engine Cam Carrier Oil Leak

Subscribe to Recall Alerts Subscribe to Recall Alerts

Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

8 TSBs | 133 Recalls

CarFocal account required

Unlock the Full 2021 Land Rover Defender Maintenance Guide

Create a free account to reveal the full service schedule, repair costs, and deeper diagnostic data.

Key Takeaways

Proactive maintenance is essential due to a 'Below Average' reliability rating.
Address potential engine cam carrier oil leaks and DC-DC converter failures as top priorities.

2 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance