The Symptom Water enters the headlight, causing severe condensation or fogging. For HID Headlights it may also cause low beam failure. The Cause The insufficient bonding between the headlight lenses and housing which allowed ingress of water. The Fix On the initial symptoms of this issue on the following chassis CL7, CL9, CN1 CM1, CM2, CN2, the customer cars were fitted with revised clips which has more clamping hold. The success rate of this fix was limited with a low percentage of first time fix. So Honda made a revised headlight for all prefacelift car i.e. 03,04 & 05 production rum. The sealing performance between the headlight lens and housing was improved to prevent water ingress. The only solution was to replace entire headlight units were being changed on customer complaint. TIP Owners fitting aftermarket HID, if you are drilling the caps to get the gourmet and the wire into the back of the low beam. Make sure the hole you drill isn't bigger than the gourmet size ,a larger hole will allow moisture laden air to enter and cause condensation. Please note dealer finding aftermarket kits will /may not entertain any extended warranties. When you replace the headlight cap make sure you coat the large O ring with a thin and even layer of Vaseline to moisten up the o ring and it will ensure a good seal. If you note this does not resolve the issue the last resort is to introduce silica gel bag toward the bottom of the head light beam. Make sure you don't get the silica gal bags toward the lower bean reflector. The heat of the beam can burn the outer bag causing the silica granule to burst and create a mess. Extended Warranty Warranty extension is normal warranty +3 years - Mileage limitation : 95,000 miles Majority of prefacelift cars are outside the remit of this TSB, however all Honda dealers are doing special deals on prefaclift headlight. Honda logistics has a large stock of halogen headlights which they are actively clearing. So please consult your local dealer if you want to purchase new headlights.