Technical Service Bulletin NTB-03-074-C — 2001 UD UD1400
EXTERIOR LIGHTING:HEADLIGHTS
Bulletin Details
| TSB ID | NTB-03-074-C |
| Manufacturer | |
| Vehicle | 2001 UD UD1400 |
| Component | EXTERIOR LIGHTING:HEADLIGHTS |
| Communication Date |
Bulletin Summary
NISSAN: EXTERIOR LAMP FOGGING. OCCASIONALLY WATER IS NOTICED IN THE EXTERIOR LAMPS. THIS IS GENERALLY NOT DUE TO A DEFECT. ALL CURRENT EXTERIOR LAMP ASSEMBLIES ARE VENTED TO THE ATMOSPHERE (NOT SEALED). THIS IS NECESSARY TO ALLOW FOR EXPANSION AND CONTRACTION OF AIR FROM TEMPERATURE VARIATIONS (WARMER OR COLDER) WITHOUT DAMAGE TO THE LAMP. MOISTURE IN THE AIR SOMETIMES TRAVELS INTO AND OUT OF THE LAMP ASSEMBLY THROUGH THESE VENTS. CERTAIN ENVIRONMENTAL CONDITIONS MAY CAUSE MOISTURE TO CONDENSE. THE FOGGING/CLOUDINESS SHOULD DISAPPEAR OVER TIME WHEN THE LAMP IS IN A DRY ENVIRONMENT. NO MODELS LISTED. *PE UPDATED 5/7/10. *PE UPDATED 12/9/13. *PE
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.