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The problem is the plastic parts integral to the airbag/horn unit in the steering column. The plastic bits contract when cold and cause the horn's switches to contact. Once it starts, the only solution is to replace that assembly, costing around $800. Good times. Sometimes it will turn off when warm, like in the dealers garage, so the problem cannot be replicated, and then the car wakes up the entire neighbourhood at 3am again until you pull the fuse. I have same problem. Relay overheats. Did you find an answer?
What else can I help you with?
Why might the horn not stop blowing in a 2003 Alero?
Hi, I had this problem on a 2000 Alero. Had to disconnect the battery to shut it up. G.M. replaced the horn relay to aleviate the problem. Duke
What is the problem with your 2003 Alero if it doesnt start while sitting in the sun for hours When the sun goes down it will start up?
I have a 2003 Alero While it sits in the sun for hours it will not start up and when the sun goes down it will start what could be the problem
Is the problem with the horn going off on the 2003 Alero a factory defect?
Could you please send your answer to livealoha@bobtoledo.com
Why when my 2003 Alero is sitting in the sun The car starts and runs but there are no accessories no dash lights no radio no power windows.. within minutes everything works fine?
I have same problem in 02 Alero.
No air blowing on 2003 Town and Country in front but rear air blowing fine. Fuses okay and AC too.?
I have the exact same problem, did you ever get an answer?
What kind of oil filter do you need 2003 alero?
Oil Filter 2003 Alero V6 3.4L part no. 3387
2003 2.2 alero crankshaft sensor location?
i have a 2003 olds alero i need to know the location of the camshaft sensor
Your 2003 jeep liberty is running hot and blowing antifreeze What could be the problem?
Thermostat sticking. Replace thermostat and gasket.
Wiring diagram for a 2003 Alero?
When playing with the electrical system to a car, it is important to have a diagram. A diagram for a 2003 Alero can be found in online forums and in maintenance books.
Where is distributor cap on 2003 alero?
It does not have a distributor cap.
Where is the thermostat located on a 2003 Oldsmobile Alero?
The thermostat is located on a 2003 Oldsmobile Alero in the thermostat housing. The thermostat housing is located on the rear side of the engine block.
Where can the leak be in my 2003 Alero V6 if it isn't the water pump resovior radiator head gasket or hoses?
The Lower Intake Manifold gasket. Do a search on that in Google, the Chevy Malibu and the Pontiac Grand Am and the Alero all have the same motor with the same problem. Yay!
