2014 GMC Sierra 2500HD: Exterior Lighting complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 64 owner complaints for the 2014 GMC Sierra 2500HD that list the exterior lighting component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #10870438 (filed 05/23/2016): “I am writing regarding an issue with my 2014 gmc sierra. i purchased the truck in 2014 and have noticed an issue with the headlights while driving at night and in the rain. the headlights do not provide enough illumination when driving at night. is there a service issue or recall in place to fix thi…”
- NHTSA complaint ODI #10855440 (filed 04/14/2016): “The vehicle lights are very dim even with the high beams on. while driving at night can barely see in front of me. these are a hazard to me and others, since not being able to see a good distance in front of the vehicle makes hard to see pedestrians, animals or debris in the road at night.…”
- NHTSA complaint ODI #10845655 (filed 03/08/2016): “Can not see the road with the light output with these factory headlight…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Moderate
LED DRLs are often integrated into the headlamp assembly, which may require bumper removal. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
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