Electrical complaints and recalls from NHTSA
Summary
The 2021 Mercedes-Benz GLS-Class has 13 NHTSA electrical complaints and 0 electrical-related recalls.
13
Complaints
0
Recalls
0
Injuries Reported
Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 9, 2026
| Date ↓ | Component | Summary |
|---|---|---|
| Mar 27, 2025 | ELECTRICAL SYSTEM,SEATS | On [XXX], I was heading home from work traveling [XXX] on [XXX] through Atlanta's usual heavy traffi... |
| Jan 4, 2025 | ELECTRICAL SYSTEM | System malfunctioned detail: 48v battery malfunction, 12v battery malfunction. Safety concern: I w... |
| Oct 15, 2024 | ELECTRICAL SYSTEM | Vehicle has just over 31k miles. ON multiple occasions, the vehicle randomly shuts off and displays ... |
| Aug 19, 2024 | ELECTRICAL SYSTEM,SEATS | 1. Unknown, smoke started coming from under the passenger side seat, car is a complete loss. 2. Smo... |
| Jul 16, 2024 | ELECTRICAL SYSTEM | Cluster Information Display Black out on and off. Cannot see speedometer and headup display also tur... |
| Dec 8, 2023 | ELECTRICAL SYSTEM | We accepted delivery of our brand new vehicle in May 2021 from the dealer. In July 2021, the vehicle... |
| Nov 5, 2022 | ELECTRICAL SYSTEM,UNKNOWN OR OTHER | Incident 1: May 2022 Vehicle was sitting in driveway overnight and would not start in the morning. ... |
| Oct 14, 2022 | ELECTRICAL SYSTEM | Car would not start, 48 volt system failure |
| Sep 15, 2022 | ELECTRICAL SYSTEM | Vehicle would not start on 3 separate occasions. The instrument panel indicated it was the 48v batte... |
| Jun 15, 2022 | ELECTRICAL SYSTEM | 2021 MERCEDES BENZ GLS450. CONSUMER WRITES IN REGARDS TO48-VOLT BATTERY SYSTEM FAILURE. THE CONSUM... |
| May 13, 2022 | ELECTRICAL SYSTEM | Car turned on by itself, then 2 days later would not start. 48v battery system needed software upda... |
| Jan 22, 2022 | ELECTRICAL SYSTEM,ENGINE | Repeated failures of 48 volt battery system has shut vehicle totally off while under highspeed and i... |
| Feb 1, 2021 | ELECTRICAL SYSTEM | Car shut off while driving. Would not restart. 48 volt battery failure, needed software update |