Tailgate Latch problems of the 2003 Dodge Grand Caravan

Erratically, the rear tailgate does not lock properly and opens while driving. No ajar warning light shown on the dash either before or after the incidents. The mechanism sounds like it has closed but it is not because the lock in the tailgate has already closed before it has reached the latch, therefore preventing proper closure. I have duplicated this issue on several occasions with both keyless entry remote and roof console control. Dealer repeatedly reports that they cannot duplicate issue, denies repair/replacement even though the tailgate has been previously replaced because of damage incurred by the tailgate popping open while driving.

While driving, the tailgate loosened and flew open. Driver drove vehicle to the dealership for analysis and the mechanic told him that the timing inside of the lock mechanism was off and caused the door to lock prematurely.

On several occasions that the lift gate does not properly lock and opens while driving. If the rear lift is unlocked and opened using the kelsey entry, it may close the lock while its being opened and when you close using the keypad, it will appear to close and you hear the mechanism closing the door but it does not close because the lock is already closed. The warning light on the instrument panel extinguishes because it believes the door is closed. On one occasion I found myself driving down the highway with and opened back. Also the interior passenger dome light turns on by itself. I have been able to duplicate this problem numerous times.