Two weeks ago, the rear window of our 2011 model Jeep Grand Cherokee was smashed whilst we were away from the car. Auto Windscreens arrived to fix the window with the news that they did not have one in stock. It further transpired that there are no replacements in the UK or Europe or the States. We have been in touch with Jeep UK who tell us that they are waiting for a batch to be made, with an expected arrival time of early September. In the meantime, the window is wrapped in "Crash Wrap" which is like Sellotape. This is obviously far from secure, necessitating us to avoid journeys where possible or leave one of us in the car whilst the other is shopping etc. Is this a normal situation in the motor industry? The car has been on the market for more than 18 months yet there is a dearth of spares.