NHTSA Complaint #10149497 — 2005 CADILLAC CTS

WITH ONLY ABOUT 3370 MILES ON A BRAND NEW CAR, MY REAR DIFFERENTIAL INTERNALS WERE DESTROYED AND THE HOUSING CRACKED DUE TO THE FOLLOWING 2 REASONS: 1. EXCESSIVE WHEEL HOP DUE TO A POORLY DESIGNED REAR SUSPENSION 2. THE DIFFERENTIAL THAT COMES STOCK IN EVERY 2004-2005 CTS-V CADILLAC IS NOT RATED TO HANDLE AS MUCH HORSEPOWER AND TORQUE AS THE CAR PUTS OUT. GM CUT CORNERS AND PUT IN A DIFFERENTIAL THAT WAS MEANT FOR THEIR V6 BASE MODEL CTS THAT MAKES ABOUT HALF THE POWER. WHEN THE REAR DIFFERENTIAL BLEW UP, IT ALSO DESTROYED MY DRIVESHAFT. I NOTICED THE DIFFERENTIAL OVER TIME STARTED TO WHINE AND CLUNK MORE AND MORE AND BECOME LOUDER AND LOUDER UNTIL ALL OF A SUDDEN WHILE DRIVING I HEARD A LOUD BOOM AND A BUNCH OF CLUNKING AND METAL GRINDING. THE CAR WAS IMMEDIATELY UNDRIVEABLE. MY DEALERSHIP REPLACED MY DRIVESHAFT AND THE DIFFERENTIAL WITH A 2006 CTS-V DIFFERENTIAL WHICH IS A BEEFIER PIECE. I HAVE 2500 MILES ON THE NEW DIFFERENTIAL WHICH IS ALREADY STARTING TO WHINE AND CLUNK. WHEEL HOP IS STILL ATROCIOUS AND IT IS ONLY A MATTER OF TIME BEFORE THIS DIFFERENTIAL BREAKS AS WELL. MY DEALERSHIP DENIED KNOWLEDGE OF ANY ISSUES WITH CTS-V REAR ENDS, AND TRIED TO PLACE THE BLAME ON ME BY STATING THAT MY REAR TIRES WERE VERY WORN FOR ONLY 3370 MILES, SO I MUST HAVE BEEN ABUSING THAT CAR. THAT IS NOT THE CASE, AND THESE TIRES ARE NOTORIOUS FOR HAVING THE WORST TREAD WEAR OF ANY TIRE ON THE MARKET, AND EVERY CTS-V OWNER COMPLAINS ABOUT HOW LONG THEY LAST. IN FACT, CONSUMERS GAVE THE TIRES ON THIS CAR THE WORST RATING OF ANY TIRE LISTED ON "THE TIRE RACK." SEE HERE: HTTP://WWW.TIRERACK.COM/TIRES/TIRES.JSP?TIREMAKE=GOODYEAR&TIREMODEL=EAGLE+F1+SUPERCAR+EMT CONSUMERS RATE THE TIRE WEAR AS A 2.6/10. WHAT A JOKE, AND CADILLAC DEALERSHIPS PLACE THE BLAME FOR THE TIRE WEAR ON ME THE OWNER. *NM