2023 Mercedes-Benz Glc300 Electrical System Problems
NHTSA lists 35 electrical system complaints for the 2023 Mercedes-Benz GLC300, making up 64% of all 55 complaints filed for the year. Median mileage at failure was 8,500 miles, and the model has three related electrical recalls, including a fuse box replacement.
- Electrical System complaints
- 35
- 64% of 55
- Crashes reported
- 2
- Fires reported
- 0
- Injuries reported
- 0
- Median mileage
- 8,500 mi
- Related recalls
- 3
Typical electrical symptoms owners report
- Vehicle stalls or shuts off while driving, sometimes with the instrument cluster going black and brake pedal feeling unresponsive.
- No-start events accompanied by 48V and 12V battery warning messages, alarms sounding, and the vehicle unusable for extended periods.
- Push-start/stop system fails to respond, alarms behave as if the car is being stolen, and displays repeat 12V onboard electrical system warnings.
- Adaptive high beam and digital light system malfunction, with headlight error codes, inoperative blind spot assist, and inconsistent beam output.
- Multiple warning lights activate together, including check engine, transmission shift warnings, and door alarms, sometimes preventing the car from being shifted into park.
When 2023 Mercedes-Benz Glc300 electrical complaints were filed
First complaint Jun 5, 2023, latest Mar 19, 2026.
Electrical System recalls for the 2023 Mercedes-Benz Glc300
- NHTSA 25V365000Jun 11, 2025Electrical System127 vehicles
Exterior lighting:headlights
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 GLC 300 and GLC 300 4MATIC vehicles. The headlights are missing adjustment prevention caps, which can allow the headlights to be improperly adjusted. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk: Improperly adjusted headlights can reduce visibility, increasing the risk of a crash.
Remedy: Dealers will inspect the headlights for sealing caps and install caps as necessary, free of charge. Owner notification letters were mailed July 18, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025060005.
- NHTSA 25V255000May 12, 2025Electrical System443 vehicles
Electrical system:wiring:fuses and circuit breakers
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 C-Class, E-Class, S-Class, SL, GLC, EQE SUV, EQE, EQS SUV, and EQS vehicles that were incorrectly repaired under recall 24V-115. An incorrect fuse box that was not designed for the vehicle may have been installed.
Risk: An incorrect fuse box can result in a sudden loss of drive power or a loss of critical safety functions such as the restraint systems or instrument cluster, increasing the risk of a crash or injury. Additionally, there could be an increased risk of a fire.
Remedy: Dealers will inspect and replace the main fuse boxes, free of charge. Owner notification letters were mailed June 6, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025050003/4.
- NHTSA 24V115000Feb 16, 2024Electrical System31,848 vehicles
Electrical system:wiring:fuses and circuit breakers
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 C300, AMG C43, S580e, S580, Maybach S580, Maybach S680, AMG SL43, AMGSL63, GLC300, EQE350, EQE500, EQS450, EQS580, AMG EQS, 2023 S500, AMG SL55, AMG EQE, 2024 E350, E450, AMG C63e S, CLE300 Coupe, CLE450 Coupe, and GLC300 Coupe vehicles. The 80-Amp fuses may have been manufactured incorrectly, which can cause the fuses to fail.
Risk: An 80-Amp fuse that fails can result in a sudden loss of drive power or a loss of critical safety functions such as the restraint systems or instrument cluster, increasing the risk of a crash or injury. Additionally, there could be an increased risk of a fire.
Remedy: Dealers will replace the main fuse boxes, free of charge. Owner notification letters were mailed April 5, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024030008.
Electrical System complaints by Glc300 model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- Is the 2023 Mercedes-Benz GLC300 reliable?
- Based on NHTSA owner complaints, the 2023 GLC300 shows a high concentration of electrical system issues, with 35 of 55 total complaints (64%) tied to that system. Owners reported failures at a median of 8,500 miles.
- Does the 2023 Mercedes-Benz GLC300 have an electrical recall?
- Yes. NHTSA lists three related recalls for the electrical system: campaign 25V365000 for headlight adjustment caps, 25V255000 for incorrect fuse box repairs, and 24V115000 for main fuse box replacement.
- What electrical problems do owners report on the 2023 GLC300?
- Owners report stalling while driving, no-start events with 48V and 12V battery warnings, unresponsive push-start systems, and malfunctioning adaptive headlights.
- How does the 2023 GLC300's electrical complaint rate compare to other years?
- The 2023 model year has a 64% share of complaints tied to the electrical system, higher than every other year listed, including 2025 at 81% and 2019 at 30%.