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2021 Land Rover Discovery electrical problems

moderate 5 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →

Complaints
5
Recalls
1
Avg fix
$850
What stands out

Among the 7 model years of Land Rover Discovery in our records for electrical problems, this one ranks #3 by owner-complaint volume.

Owners are still filing on this — the most recent NHTSA electrical complaint for this vehicle was logged 24 days ago.

Related recalls

severe NHTSA 21V457000 June 17, 2021

Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2020-2021 Land Rover Discovery vehicles

A vehicle that shuts down or loses exterior lighting while driving increases the risk of a crash.

Fix: Dealers will replace the ground stud, free of charge. Owner notification letters were mailed on August 10, 2021. Owners may contact Land Rover customer service at 1-800-637-6837. Land Rover's number for this recall is N607.

Is there a fix? Manufacturer service bulletins

The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.

Service Bulletin 252602.027 - 12FEB26 Feb 2026

Once the vehicle is powered down via ignition cycle, it may not restart depending on remaining residual charge.

full bulletin at NHTSA ↗
Service Bulletin SFCC_MAR2024_58 Mar 2024

Radio presets clear after ignition cycle. Sirius XM favorites do not store.

full bulletin at NHTSA ↗
Service Bulletin SFCC_DEC2023_32 Dec 2023

Due to time required to complete in shop vehicle set up and workflow for Audio loss, it has been found that workflow may provide false result if IMC is not in a faulted state when workflow is run to identify potential Polar Switch Firmware fault.

full bulletin at NHTSA ↗

Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.

What owners are reporting 5 most recent

electrical · filed 06/04/2026

2021 Land Rover Discovery 48V mild hybrid (MHEV). Recurring 12V system failures: repeated depleted/dead 12V batteries and no-start events. The 12V battery has failed and been replaced three times during my ownership (two documented at a franchised Land Rover dealer and an independent shop), plus a prior replacement under the previous owner per the vehicle history report. Symptoms: the vehicle…

electrical · filed 05/12/2026

Supplement / update to prior NHTSA complaints regarding my 2021 Land Rover Discovery MHEV (VIN: [XXX] y prior complaints, Jaguar Land Rover has issued Recall 26V248 for DC/DC converter failure leading to loss of propulsion in 2021–2024 Land Rover Discovery MHEV vehicles. My vehicle experienced the same real-world failure condition: sudden loss of propulsion in traffic with my children in the…

electrical · filed 04/08/2025

MHEV vehicle is offline; car completely shut down, resulting in loss of power on the road.

electrical · filed 01/13/2025

I own a 2021 Land Rover Discovery with VIN [XXX] , and I am experiencing issues that align with the national recall for the MHEV battery. My vehicle’s start-stop functionality fails intermittently, and the system is in an “offline state,” disrupting communication and critical functions. Additionally, due to these MHEV battery errors, my vehicle cannot receive over-the-air updates provided by…

electrical · filed 01/02/2026

While driving my 2021 Land Rover Discovery (MHEV) in active traffic, the vehicle suddenly displayed an “Electrical system fault – Stop safely” warning. Immediately after the warning, the vehicle lost power and shut down, leaving me stalled in traffic with no ability to safely move the vehicle out of the roadway. There was no prior warning, no gradual degradation, and no driver-caused condition.…

Had electrical trouble with your 2021 Land Rover Discovery? File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.

Common questions

How serious is the electrical problem on the 2021 Land Rover Discovery?

It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.

At what mileage does the electrical typically fail?

Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.

What does it cost to fix?

Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.

Are there any recalls related to electrical?

Yes — 1 active recall(s) cover electrical issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.

Related

Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA) public records database. Verify the raw federal record at nhtsa.gov/vehicle/2021/Land Rover/Discovery. Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are independent-shop national averages and may differ in your area. Some links on this page are affiliate links.
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