Take it by a parts store they will test the battery an charging system .
SOURCE: i have 2005 cadillac sts.
If the Battery's connector voltage with running engine, is 13.3 volts than you may have a charging system problem. If alternator and voltage regulator works properly, then with running engine, you have to read 13.8 up to 14.2 volts. Make sure to use a digital multimeter.
SOURCE: cadillac 2004 cts, wont start
The battery needs replacement. Also , the starter could have frozen up on your car. take off the starter, then remove from the car. get some jumper cables and connect from a good battery. Connect the negative cable to the housing as ground. then carefully hit the hot wire bolt of the starter with the positive cable. If the starter is OK, the starter should spin freely and kick up. Be careful when doing this. Also , be sure you mark the wiring so the starter can be replaced exactly as it came off. if it does not turn or turns slow and sluggish, the starter is your problem. replace with a good starter.
SOURCE: 2003 Cadillac cts battery up/won't start
Its the battery. The colder it gets the less cranking amps it has. Keep the car in garage or get a battery wrap warmer. Also try to get a battery with the most cranking amps for the size battery it will take.
SOURCE: 2003 cadillac cts - car dies while driving
hi it sounds like the acclerrator pump on carby when you first take off is this whot it dose .
SOURCE: cadillac cts cranks but won't start
My 2003 CTS would not start on the first, second or third try after filling the gas tank. Finally after several months of this occuring every two weeks a check engine light came on. It was the evac purge valve. Tom
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