It is either a vent hose or a drain for the battery tray.
Your Lucerne has the battery under the rear seat......it is important to vent the battery fumes out of the passanger compartment.....if the car has the correct battery, it has a connection to plug the hose on and those fumes go out under the car.
I gave a 2008 Buick Lucerne there is a hose that goes from the battery thru the floor of the car. Do you know what this hose is for?
2008 Buick Lucerne
-
Maintenance & Repair
battery removal on 2005 Buick
Buick Lucerne
-
Maintenance & Repair
How fdo I remove the cable from terminals in 2006 lucrene battery?
2006 Buick Lucerne
-
Maintenance & Repair
The battery service charging message came on, engine in reduced power light came on, traction control light, AC off Engine hot all came on. Looks like some fluid might be leaking possibly Could th...
2009 Buick Lucerne
-
Maintenance & Repair
I have the original battery in my 2007 Lucerne. It is fully dead car has not been used for two months. If I replace the battery with a new one will the computer reset and will the car start and all...
2007 Buick Lucerne V6 CXL FWD
-
Maintenance & Repair
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.