2021 Land Rover Defender Problems: 4 Known Issues
2021 model year · 1,370+ owner reports · Updated October 2026
According to Au7o's analysis of 1,370+ owner reports, the 2021 Land Rover Defender has 4 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. The most commonly reported issue is Optional Air Suspension Faults After Off-Road Use with 560 owner reports. Across all issues with published estimates, repair costs range from $50 to $1,500. DIY maintenance guides at au7o.io.
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All 4 Known Issues
NHTSA Recalls17 recalls
EXTERIOR LIGHTING:TAIL LIGHTS
Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2020-2022 Defender X vehicles equipped with smoked rear light assemblies. A voltage spike, triggered by a bright light shining on the rear of the vehicle, can cause the turn signals, brake lights, and tail lights to fail.
SEAT BELTS:FRONT:RETRACTOR
Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2021 Range Rover, 2022 Range Rover Sport, 2020-2021 Range Rover Velar, Discovery Sport, 2020-2022 Discovery, and Defender vehicles. The seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly.
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2020-2021 Land Rover Defender vehicles. The owner's manual incorrectly states that the third-row seating is equipped with LATCH child seat restraints with top tethers. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2024 Defender, Discovery Sport, Range Rover, Range Rover Evoque, Range Rover Velar, and Range Rover Sport vehicles. The Near Field Sensing Module (NFSM) may overheat and cause the 3D surround camera images, including the rearview camera image, not to display.
EQUIPMENT
Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2020-2025 Land Rover Defender vehicles equipped with Raised Air Intake (RAI) aftermarket accessory equipment, with part number VPLEP0543. The raised air intake may not be secured properly, which can allow the intake to detach from the vehicle.
+ 12 more recalls. Check all on NHTSA.gov
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Frequently Asked Questions
What are the most common Land Rover Defender problems?
According to Au7o's analysis of 1,370+ owner reports, the 2021 Land Rover Defender has 4 documented issues. The most frequently reported are: Optional Air Suspension Faults After Off-Road Use, Rear Quarter Window Spontaneous Cracking, Differential Breather Blockage After Wading/Off-Road. None are rated critical, but regular maintenance is recommended.
Is the Land Rover Defender reliable?
The 2021 Land Rover Defender has 4 known issues documented across 1,370+ owner reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Land Rover Defender problems?
Repair costs for known Land Rover Defender issues range from $50 to $1,500, 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.
What is the 2020-2025 Land Rover Defender Optional Air Suspension Faults After Off-Road Use?
Defenders equipped with the optional air suspension (standard on 110 V8 and X models) can develop faults after off-road use. Mud and debris packed around the air springs and height sensors cause incorrect readings and valve block issues. The air springs can be punctured by sharp… Severity: medium.
What is the 2020-2025 Land Rover Defender Rear Quarter Window Spontaneous Cracking?
The new Defender has experienced reports of rear quarter windows cracking spontaneously without impact. The issue appears related to thermal stress and the bonding method used to attach the glass. The cracks typically start at a corner or edge and propagate across the glass. Some… Repairs typically run $500-$1,500. Severity: low.
What is the 2020-2025 Land Rover Defender Differential Breather Blockage After Wading/Off-Road?
After wading or driving through deep mud, the differential breathers on the Defender can become blocked. This prevents pressure equalization inside the differential housings, leading to seal leaks as internal pressure builds. The front differential is particularly vulnerable as i… Repairs typically run $50-$600. Severity: low.
What is the 2020-2025 Land Rover Defender Pivi Pro Infotainment Software Bugs and Connectivity Issues?
JLR documents several bounded Pivi conditions rather than one universal hardware defect. Global Service Action N795 covers specific 2020-2022 Defender vehicles that cannot complete VDC/Pivi Software Over The Air updates and require a wired intervention. A January 2026 JLR update… Severity: low.
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.