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Exterior lightingPart report

2018 GMC Sierra 2500 Exterior lighting Problems

Complaints
4about this part
Share
11%of 35 total for the year
Median mileage
18,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the exterior lighting of the 2018 GMC Sierra 2500, 11% of the 35 complaints for this model year. Where a mileage was given, the median is 18,000 miles.

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.

“Headlight shakes and flickers while driving over bumps in the road. Happens on city streets and highways. Flickering is very distracting and draws attention away from your surroundings.”

NHTSA complaint #11320881, filed 2020-04, 40,000 miles

Related service bulletins

Exterior lighting: other model years

YearComplaintsShare of year
202527%
202433%
202224%
2021917%
202023%
201926%
2018411%
201713%
201623%
20152629%
201413%
201112%
200522%
200421%
200311%
200211%
200121%
199926%

Other parts of the 2018 GMC Sierra 2500

Engine
8 complaints
Electrical system
7 complaints
Fuel system
6 complaints
Other or unknown
5 complaints
Equipment
4 complaints
Tires
3 complaints
Transmission and drivetrain
3 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Back-over prevention (rear camera)
1 complaints
Seat belts
1 complaints
Steering
1 complaints
Wheels
1 complaints

← All problems reported for the 2018 GMC Sierra 2500

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