MotorHome Tech Tips

Water and Moisture in the RV Tail Lights

Preventing Moisture buildup in Tail Lights

Although the tail lights, back-up lights and rear reflectors have rubber seals and gaskets surrounding them, they leak. The next time that it rains go around and check your rear lights. If the seal is good they might be dry, however if the seal is not applied perfectly you might find these lights filled with moisture and water. Of course if water gets high enough and into the bulb housing, it will probably short out the connection.

One remedy that I have found to address this problem is to drill a small hole in the bottom of each rear plastic plate that covers the rear lights. Use a 3/16ths inch drill bit and carefully drill a small hole which will let the water out and alleviate this problem.

It is also advisable to drill a couple of small holes in the bottom of each rear back-up light plastic lens to help vent out any moisture buildup.

Caution: The maintenance recommendations on this page are meant as general guidelines only. Always consult with a professional RV mechanic, your owner's manual, and/or your authorized RV dealer BEFORE performing any maintenance procedures. See 'Legal Disclaimer' below.

Legal Disclaimer & Caution: Before using any advice, and/or performing any maintenance procedures recommended on this website you should consult with your RV dealer, and/or a professional Motorhome or RV mechanic. The recommendations and advice given on this website are intended as general guidelines ONLY, and may not pertain to your particular make and/or model of RV or Motorhome. Use these suggestions, repair tips, and/or maintenance advice AT YOUR OWN RISK. Under no circumstances will this website, or any of its officers or employees be liable for any consequential, incidental, special or exemplary damages even if appraised of the likelihood of such damages occurring. The owners of this website do not warrant the information against errors, omissions or deficiencies of any kind.

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