Leaking gaskets around the tail lights can allow water entry into the tail light assembly. New gaskets should fix this concern.Google+
Car Problem Reports
Honda Accord Leaking Gaskets May Allow Water into Tail Light Assembly
Honda Accord Problem
Average Mileage: 151,006 mi (45,000 mi - 284,000 mi)
Visitor, 1998 Honda Accord, 70,000 mi
Water had leaked into drivers side rear brake light so I ended up using some caulking to seal it up
Visitor, 1991 Honda Accord, 197,652 mi
gasket leaked around lights replaces gaskets working fine now
Visitor, 1999 Honda Accord, 129,000 mi
Water leaking into both tail light housings. Passenger side is minor, driver's side fills about one third full with water and empties into trunk when trunk lid is opened. Probably just run a thin film of silicone caulking around tail light assembly, less cost and hassle than replacing gaskets.
Visitor, 1999 Honda Accord, 280,000 mi
passenger side tail light fill up with water and leaks into trunk. driver side tail light leaked abot a hundred k mile earlier, had to buy compleat tail light assy. to repair leak,(and they are kind of spendy)
Visitor, 1998 Honda Accord, 125,000 mi
Leak in driver side tail light - water runs into truck when lid opened.
Visitor, 1990 Honda Accord
Water in taillight
Visitor, 1998 Honda Accord
leaky gasket around taillight
Visitor, 1990 Honda Accord, 125,000 mi
Both tail lights leaking.
Visitor, 2004 Honda Accord, 74,000 mi
water runs out of taillight assembly when trunk is open
Visitor, 1998 Honda Accord, 122,300 mi
Trunk Tail lights on the passenger side have moisture inside the fixture and noted a cup of water under the trunk tire.: Plan new gaskets.