Our auto defect attorneys are speaking with drivers about water leak problems in their 2007-2013 Chevrolet Silverados and GMC Sierras. Drivers have complained that water leaks into the cabin through the center high mount brake light, (the top or third brake light) causing “musty” or “moldy” odors, carpet dampness, in-cabin puddles, and even problems starting the vehicle.
Is Your Silverado or Sierra Leaking?
If your 2007-2013 Chevrolet Silverado or GMC Sierra has a water leak problem, or if you have not yet identified the source of damp carpets or a moldy smell, you may be affected by our class action investigation. Call toll-free 800-254-9493 to learn more and get a free legal consultation.
GM 3rd Brake Light Technical Service Bulletin
Online forums say General Motors notified dealerships of this problem through a Technical Service Bulletin, which is a document a vehicle manufacturer may issue when a problem arises with a particular vehicle. TSBs are intended to help dealerships diagnose and fix vehicle problems.
The TSB was reportedly issued on April 27, 2012, and notified dealerships that water may enter the trucks through the center high mounted stop lamp opening. The TSB explained that this leak “may sometimes lead to a possible no-start due to remote control door lock receiver (RCDLR) connector corrosion,” which may occur when water sits on the rear floor of the vehicle or when the rear carpet is wet.
The online reports say the TSB was updated on February 4, 2013, to include the 2013 model year Chevrolet Silverados and GMC Sierras, too.
The TSB also explained that, to fix the leak, a mechanic should verify the leak path, remove and clean the lamp, and seal the outer edge of the lamp surface to prevent water from reentering.
Some drivers report attempts to fix the problem at home using a sealant purchased from a hardware store. Others have taken their cars to mechanics and have replaced their lights and carpets, which can cost hundreds of dollars out-of-pocket when outside of warranty.