November 27, 2013
EXTERIOR LAMP FOGGING
This bulletin has been amended. The Applied Vehicles section has been revised. Please discard all previous versions.
2001-2014Nissan, All Models
Occasionally customers may notice water vapor or fog in the exterior lamps. This is generally NOT due to a defect.
The following information, illustrations, and flow chart are provided to help you in determining if an incident for water/condensation in the lamps is normal or not.
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.
Fog may temporarily form inside the lens of the exterior lamp assemblies based on environmental conditions or sudden temperature changes (such as in a car wash, or parked on a cold, sunny day). This is normal. See Figure 1.
If the moisture trickles, drips, or pools, it may not be considered normal and the lamp assembly may have a water leak path. See Figure 2 for an example.
If large drops of water collect inside the lens, refer to the flow chart to find the next step.