Skip to content
Electrical systemPart report

2024 Mercedes-Benz GLC 300 Electrical system Problems

Complaints
6about this part
Share
29%of 21 total for the year
Median mileage
1,987miles
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 6 complaints about the electrical system of the 2024 Mercedes-Benz GLC 300, 29% of the 21 complaints for this model year. Where a mileage was given, the median is 1,987 miles. 2 recall campaigns on record are filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Check engine light appears, also a blue engine and a turtle. The dealer is aware, they have had it 3times for the same issue and this time 23 days and counting. Currently Mercedes has no fix. I purchased the veh 30 Nov 23- first appeared 16 dec and continued going on and off.”

NHTSA complaint #11574918, filed 2024-03

“The contact owns a 2024 Mercedes-Benz GLC300. The contact stated that upon starting the vehicle, the check engine warning light illuminated. The vehicle was taken to a dealer and the contact was informed that the 48V bolt battery had caused the check engine warning light to illuminate. The contact was informed by the dealer that the temporary fix would be to reduce the battery charge to 25% then charge the battery to 75%. The check engine warning light returned soon after the fix and the contact was informed that there was no permanent fix for the defect. …”

NHTSA complaint #11566466, filed 2024-01, 1,800 miles

“The contact owns a 2024 Mercedes-Benz GLC300. The contact stated that while driving at an undisclosed speed, the audible alarm activated and several warning lights illuminated. The contact stated that all the warning lights went off except the check engine and the low-battery warning lights. The vehicle was taken to the dealer. The vehicle had not been diagnosed or repaired. The contact stated that the vehicle was previously taken to the dealer on three occasions because of electrical or software failure. The manufacturer was made aware of the failure and a case was filed. …”

NHTSA complaint #11578547, filed 2024-03, 2,174 miles

“When stopped at a light or stop sign, Vehicle will Jerk forward as If hit from behind. Very surprising and dangerous. Very intermittent. The has happened many times. Vehicle will at times have rough downshifts. Ie. overdrive (9th) to (8th) gear. also intermittent. This has happened multiple times. Vehicle was taken to the dealer twice for a total of 50 hours in the shop. The first service time no problem was found, diagnostics did not show problem. Aug 22 to Aug 30, 2024. The second service time Oct 3 to Nov 14, 2024. Problem was duplicated by the technician. …”

NHTSA complaint #11625278, filed 2024-11

“Brand new '24 GLC300 4MATIC. Engine light came on with no error message. Brought it in for service. Miscellaneous engine repair states: Found current code POA7F00 in drivetrain control unit. Followed LI54.10-P-077250. Cleared codes. Drained 48V battery to below 25% SOC. Charged vehicle to 70% SOC. Job complete. Service foreman mentioned that the service performed may not resolve issue. He contacted Mercedes-Benz Engineering and said no fix at this time and no ETA. Left service with no more engine light on. However, it didn't take long, and the engine light came on again. …”

NHTSA complaint #11566165, filed 2024-01

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
20251275%
2024629%
20233055%
20221220%
2021812%
202069%
20191430%
20181315%
20171515%
2016118%

Other parts of the 2024 Mercedes-Benz GLC 300

Engine
7 complaintsTransmission and drivetrain
5 complaintsBrakes
3 complaintsExterior lighting
3 complaintsOther or unknown
3 complaintsForward collision avoidance
2 complaintsAir bags
1 complaintsSeat belts
1 complaintsVehicle speed control
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2024 Mercedes-Benz GLC 300

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology