NHTSA Complaint #10534693 — 2004 CADILLAC SRX

I WAS SITTING AT A STOP LIGHT, IN MY CAR, WITH MY MOTHER IN THE PASSENGER SEAT. WHEN THE LIGHT TURNED GREEN I APPLIED PRESSURE TO THE ACCELERATOR AND THE BACK END OF THE CAR MADE A LOUD ENOUGH THUMP - I THOUGHT THE AXLE BROKE OFF. AS I CONTINUED TO DRIVE AWAY FROM THE INTERSECTION I LOOKED IN THE REAR VIEW MIRROR FOR REMAINS - THERE WERE NONE. MY MOTHER COMMENTED ON THE NOISE, I DID NOT KNOW WHAT TO TELL HER. SHE ALSO HAS A CADI SRX, 2005. WHEN SHE RETURNED HOME SHE NOTICED THE SAME NOISE IN HER CADI. HER HUSBAND SAID IT WAS THE "REAR DIFFERENTIAL." SINCE THAT TIME THEIR CADI WAS LOST IN A FLOOD AND THEY PURCHASED ANOTHER CADI SRX, 2008. THIS CADI ALSO HAS THE THUMPING IN THE REAR DIFFERENTIAL. THE THUMPING CONTINUES WHEN ACCELERATING FROM A STOPPED POSITION. I HAVE COME TO THE CONCLUSION ALL THE CADILLAC'S HAVE REAR DIFFERENTIAL ISSUES AND THERE NEEDS TO BE SOME KIND OF ACTION AGAINST THIS ISSUE. THIS NEEDS TO BE ADDRESSED. MY NEXT STEP IS TO GO TO THE BETTER BUSINESS BUREAU. *TR