Recall 20V607 affects 7 2020 Mercedes-Benz Glc 350 E vehicles for a high-voltage wiring harness defect. Repair is free at any franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 7 2020 Glc 350 E hybrid electric vehicles because the high-voltage wiring harness shield is at risk of electrical overload under certain driving conditions, which can trigger an electrical malfunction and stall. A stall raises crash risk, and the Mercedes-Benz dealer repair is free.
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What's wrong?
The high-voltage wiring harness on the 2020 Mercedes-Benz Glc 350 E carries electrical power between the hybrid system and the power electronics that manage propulsion. Its shield protects that cable path and helps control electrical current around the harness, so the hybrid drive can deliver power without interference.
On affected SUVs, the shield connection at the power electronics was built in a way that does not withstand the electrical loads produced during specific dynamic driving profiles. When that shield is overloaded, an electrical malfunction can occur in the propulsion system. That malfunction can interrupt drive power and cause the vehicle to stall.
There is no warning sign before failure. The owner does not get an advance message, noise, smell, or driveability clue from the failure mechanism before the stall occurs.
Who's affected?
| 2020 Mercedes-Benz Glc 350 E | electric propulsion system |
|---|---|
| Units affected | 7 |
| Field incidents | NHTSA has logged no field incidents to date. |
Not every 2020 Mercedes-Benz Glc 350 E is on the list. Check your VIN to confirm whether your specific SUV is included.
What's the safety risk?
A vehicle stall can leave the driver without expected power while moving and increase the risk of a crash. There is no warning sign before the stall, so treat any loss of power as a reason to pull over when safe and call the dealer. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2020 Mercedes-Benz Glc 350 E is included in this recall.
- Contact a franchised Mercedes-Benz dealer to schedule the free high-voltage wiring-harness replacement that fixes the electrical malfunction and stall risk.
- Bring the recall notice if Mercedes-Benz sent one, and reference recall number 20V607 when you call.
- Drive cautiously until the repair is complete. Pull over safely if the vehicle stalls.
What happens at the repair
At the dealer, a Mercedes-Benz technician replaces the high-voltage wiring harness covered by recall 20V607. The replacement parts and labor are free under the recall, and the repair is available now. Out-of-pocket repairs already paid are handled through the new vehicle warranty, not through a separate reimbursement program, because the involved vehicles remained under warranty. Ask the service desk how warranty coverage applies if you have prior harness-related or electrical repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| October 2, 2020 | NHTSA published the recall |
|---|---|
| October 9, 2020 | Dealer notification began |
| December 1, 2020 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| December 1, 2020 | Interim owner notification (was planned for this date) |
| December 11, 2020 | Owner notification mailed |
Frequently asked questions
What is recall 20V607?
Recall 20V607 covers 7 2020 Mercedes-Benz Glc 350 E hybrid electric vehicles with a high-voltage wiring harness shield defect. Under certain driving conditions, electrical load can cause an electrical malfunction and a stall. Mercedes-Benz dealers replace the high-voltage wiring harness for free.
What should I do if my 2020 Mercedes-Benz Glc 350 E is on this recall?
Check your VIN to confirm your specific SUV is included in recall 20V607. If it is, contact a franchised Mercedes-Benz dealer and ask for the high-voltage wiring harness replacement. Reference Mercedes-Benz recall number 2020110008, or call 1-800-367-6372.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. For recall 20V607, Mercedes-Benz dealers replace the high-voltage wiring harness free of charge at any franchised Mercedes-Benz dealer.
What is the safety risk?
The safety risk is a vehicle stall. Mercedes-Benz reports that the high-voltage wiring harness shield defect can cause an electrical malfunction under certain driving conditions, and a stall can increase the risk of a crash. The dealer repair fixes the harness issue for free.
When did the recall repair begin?
The recall repair began December 11, 2020. Mercedes-Benz dealers have been instructed to replace the high-voltage wiring harness free of charge for included vehicles. Check your VIN first, then schedule the repair with a franchised Mercedes-Benz dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V607000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 20V607 |
| NHTSA recall # (full) | 20V607000 |
Source documents
-
Download Quarterly Report (PDF) - Download Misc. Document (PDF)
- Download Recall Document (PDF) (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →