Electrical system: wiring
Risk. An overheated ground connection can increase the risk of a fire.
NHTSA has logged 26 owner complaints about the 2020 Mercedes-Benz GLE 450, most often about the electrical system. It is covered by 32 safety recalls, and for recall 19V-458 the manufacturer reports only 64% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through April 21, 2026. Updated daily.
26 complaints grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Electrical system | 14 | 0 |
| Engine | 9 | 0 |
| Vehicle speed control | 7 | 0 |
| Seats | 2 | 0 |
| Back over prevention | 2 | 0 |
| Seat belts | 1 | 0 |
| Suspension | 1 | 0 |
| Tires | 1 | 0 |
| Air bags | 1 | 0 |
| 6 other systems | 6 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Risk. An overheated ground connection can increase the risk of a fire.
Risk. An engine stall increases the risk of a crash.
Risk. Water intrusion into the foot wells may cause corrosion and/or short circuits to electrical components, increasing the risk of fire.
Risk. Detached trim bars may cause a road hazard and increase the risk of a crash or injury.
Risk. A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency…
Risk. An overheated electrical cable can increase the risk of a fire.
Risk. An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
Risk. A fuel leak in the presence of an ignition source, such as hot engine or exhaust components, can increase the risk of a fire.
Risk. Incorrectly assembled seats may not properly restrain an occupant during a crash, increasing the risk of injury.
Risk. Incorrectly adjusted headlights may reduce visibility, increasing the risk of a crash.
Risk. A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
Risk. Water intrusion into the driver and passenger side foot wells may cause corrosion and/or short circuits to electrical components, increasing the risk of fire.
Risk. A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying…
Risk. If the vehicle unexpectedly pulls to one side during an evasive maneuver, it can increase the risk of a crash.
Risk. In the event of a crash where the passenger air bag deploys, an unsecured dashboard could impair the inflation of the passenger air bag, increasing the risk of…
Risk. If the reverse light remains illuminated in a gear other than reverse, it may cause confusion about the driver's intention to other motorists, and increase the…
Risk. Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Risk. An unrestrained occupant has an increased risk of injury in the event of a crash.
Risk. If the power steering, wiper motor, or left headlight malfunction there could be an increased risk of a crash.
Risk. A separated windshield may reduce the effectiveness of the passenger air bag restraint system and increase the risk of injury in a crash.
Risk. Premature wear of the front struts and rear shock absorbers can affect vehicle handling and control, increasing the risk of a crash.
Risk. Damaged wires may cause the rear side air bags to not deploy as intended.
Risk. If the rear crossmember detaches from the vehicle, it can become a road hazard and increase the risk of a crash.
Risk. If the interior switches are not illuminated, they may be more difficult to find and operate, increasing the risk of a crash.
Risk. The headrest may not properly protect the occupant in the event of a crash, increasing their risk of injury.
Risk. The detached trim can become a road hazard, increasing the risk of a crash.
Risk. Improperly adjusted head restraints increase the risk of injury to the third row seat passengers in the event of a crash.
Risk. If a significant volume of water enters the driver and passenger side foot wells, it might cause corrosion and/or short circuits to the electrical components…
Risk. A fuel leak in the presence of an ignition source increases the risk of a fire.
Risk. An impaired Active Brake Assist may not automatically apply partial or full braking as expected, increasing the risk of a crash.
Risk. An air bag that does not deploy as intended can increase the risk of injury in the event of a crash.
Risk. Water in the passenger compartment may affect the vehicle's electrical systems, increasing the risk of a crash or injury.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercedes-Benz.
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the GLE 450 median. How we score
Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.
My vehicle was in for a normal service to have the spark plugs replaced. However I was told that the engine wiring harness had become brittle (apparently a common and reoccurring problem with my vehicle) and would likely cause misfiring after changing spark plugs. This did indeed happen and if I…
Engine compartment heat causes wiring harness insulation to melt and Electrical shorting while driving. Engine has lack of power and acceleration due to heat damage to the engine harness. Check Engine light came on. This is a potential fire risk and should be address by MBUSA. This is a know issue…
The air conditioning in my 2020 Mercedes-Benz GLE SUV has failed due to a refrigerant (freon) leak, leaving the system unable to cool and properly defrost the windshield. This is not an isolated issue—many other GLE owners have reported the same failure on forums and blogs, suggesting a widespread…
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.