General Motors Complaint - Warning: Design Defect In Rear Hatch Window Seal
RIDGECREST, CA, CALIFORNIA -- WARNING: 2007 LTZ Tahoe has Design Defect.
OK...now that I've got your attention, let me explain.
I've been a loyal Chevy/GM owner for 30yrs and an engineer by profession. I currently own 2 Chevy/GM trucks and just recently purchased a 2007 Tahoe, LTZ in March.
My issue: I recently took a 2500 mile round trip pulling an enclosed Utility Trailer which is approx 14' H, 8’W, 16' L. The window seal on the real hatch was compromised by the air flow over the roof and hitting the face of the trailer (assume vacuum). As a result, EXCESS (nerve racking) wind/road noise was experienced and you could actually see daylight between the window and seal. This condition only happens when pulling the trailer either loaded or empty.
I have contacted our local dealer and his research thru GM's data base does not show this as a problem...am I the first? And the response he's gotten from GM technical is: We're not fixing the problem...have the customer consider buying a roof mounted wind deflector. Good idea for 2 reasons....gas mileage improvement and now...hopefully a reduction in road noise thru the rear window.
Now….my issue….I just paid over $45,000 dollars for a vehicle that is supposedly designed for both luxury and functionality (actually working the 4X4, pulling trailers, etc). Wouldn’t one expect that under these conditions, the proud owner would still have the quite ride of luxury? Especially since GM did such an excellent job on the “Trailer/Towing” package features. Is this a detailed missed or is my Tahoe the lone exception?
So, besides this issue....I'm very happy with my new 2007 Tahoe LTZ and it performed fairly well pulling the trailer (1000 lb tongue weight, 5000 lb total weight). I pulled the trailer from Southern Cal to North East Wyo and normally ran 70-75mph on open semi flat roads. Overall trip MPG was 8.6.
In closing....next trip home I’ll shelve the Tahoe luxury if I need to pull the trailer and will use our 2001 3/4 ton Duramax Diesel. Can’t beat the power and the trip home is uphill all the way.