My 2009 Buick LuCerne CXL is shutting down at stop lights, stop signs , and if I back out of parking spaces...I'm getting scared of being rear ended. I love this car but I need help,, please.

Asked by ginaheckel Nov 16, 2017 at 11:19 AM about the 2009 Buick Lucerne CXL Special Edition FWD

Question type: Maintenance & Repair

The speed thing goes up and states
Max speed 112... Then my car dies. I
am concerned that someone not
paying attention will ram my car...I love
this vehicle but I'm concerned about
my families safety.

2 Answers
21,865

Gary answered 6 years ago

With all the electronics in cars, its difficult to say what is wrong. You could start by having the codes from the computer checked. It is likely that one of the sensors is failing but no way of knowing without some computer diagnostics. Auto Zone or Advanced Auto parts will usually check the codes for free. If that doesn't help, you will need to consult a repair shop.

Mark helpful
10,210

txbarney answered 6 years ago

If your car will not idle....but dies, that is a common sign of a vacuum leak. Check the vacuum lines on the engine for cracks, or broken plastic connections.

Mark helpful

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