condensation in the center taillight assembly
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jet020
- SE Member

- Posts: 16
- Joined: Wed May 18, 2011 3:59 pm
- Year and Trim: 2005 Bonneville se LIguid silver metallic exterior
condensation in the center taillight assembly
I noticed a posting about a member having the dreaded condensation problem in his Bonneville center tail light assembly. Is this a reacurring problem? I purchased a 2005 Bonneville SE last month and I love it. It is in absolutely mint condition however it has moving water in the center taillight assembly that you can see slushing around when you pop open the trunk. I noticed a tiny hole with a grommet located directly underneath the bottom of the outside assembly portion that the service manager said was a drain hole that was probably plugged. When I got home I inserted a small sharp piece of plastic that easily went inside but alas no water drained out. Will I have to remove the whole piece to drain the water and let dry out and will this be a reacurring problem during the wet season. Any help will be appreciated. Love my Bonneville!
- harofreak00
- Administrator

- Posts: 26022
- Joined: Mon May 19, 2008 6:04 pm
- Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
- Location: Browerville, MN
- Contact:
Re: condensation in the center taillight assembly
It should be a completely sealed unit. There is something wrong with yours. See if you can find the leak, get all the water/condensation out, and then plug it up.
If you are interested, I have good ones for sale.
If you are interested, I have good ones for sale.
Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler
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00Beast
- Retired Site Developer

- Posts: 20960
- Joined: Tue May 27, 2008 10:30 pm
- Year and Trim: '17 Silverado 1500
- Location: MN/IA
- Contact:
Re: condensation in the center taillight assembly
Those grommets are drains for the trunk lid, not the taillight section. You could drill a small hole in the bottom of the lid, but that's masking the problem, not fixing it.
Bye Bye:

RIP sandrock

RIP sandrock
Sirius wrote:Think about it. You’re tooling down the road in your Prius, knowing full-well that this thing being green is as big a sham as federally mandated ethanol-enriched gas, Russia pulling out of Ukraine, and Obamacare.
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jet020
- SE Member

- Posts: 16
- Joined: Wed May 18, 2011 3:59 pm
- Year and Trim: 2005 Bonneville se LIguid silver metallic exterior
Re: condensation in the center taillight assembly
Thanks for the reply Harofreak. Let me know how to contact you on a possible replacement. Other than the moisture mine looks pretty nice on the outside but I might go the replacement route depending on what you have.
- harofreak00
- Administrator

- Posts: 26022
- Joined: Mon May 19, 2008 6:04 pm
- Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
- Location: Browerville, MN
- Contact:
Re: condensation in the center taillight assembly
You can either PM me, or email me. Check out my website: www.bonnevillecarparts.com
Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler

