Nissan TITAN running lights remain on after headlights are turned off, light housing replacement needed on Nissan TITAN

Some Nissan TITAN owners report experiencing issues with their running lights staying on after the headlights are turned off, which may indicate an underlying electrical problem. This situation can arise if the actual headlights do not turn off, potentially pointing to a malfunction in the light housing. Additionally, moisture entering the headlight assembly through a faulty gasket can lead to water accumulation and shorted connections, resulting in the running lights remaining illuminated. Some owners find that the Daytime Running Lights (DRL) may also contribute to this issue, and a faulty DRL module can complicate diagnosis. It is advisable for owners to consult the owner's manual for information on features like the auto light function, which controls lights based on ambient conditions. For those with newer models, troubleshooting may require referencing a shop manual to address problems related to the body control module or DRL. If the running lights continue to stay on, inspecting the light housing for water ingress or electrical faults is recommended.