Low voltage on battery

Asked by Feb 21, 2015 at 05:35 PM about the 2008 Cadillac CTS

Question type: Maintenance & Repair

All warning lights come on. Cadillac
service department says it's showing
low voltage on battery. They replaced
battery. Two days later same thing but
now having additional problems with
power steering. Told it was mass air
regulator. Four days later car will not
start. Now they say I need an
alternator.  Why would that not have
been checked the first time when they
saw the battery was being drained?

4 Answers

16,620

A) you took it to a Cadillac dealership. B) Every new car dealership is looking to make as much money on you as possible. C) they just proved my point exactly! Stop taking the car to a new car dealership. Find a good REPUTABLE independent mechanic.

1 out of 1 people think this is helpful.
56,715

It is possible that the battery was original. Unusual, but possible. They saw it was old and changed it. But you're absolutely right. They should have checked the alternator. Talk to the service manager about it. Try to get something towards the alternator from the battery that you didn't need that you paid for. Even if the battery was old and ready to fail it didn't solve the problem. Cadillac is very big on customer satisfaction. I have to disagree about taking the car back to the dealer. I've always done that and have much better luck with them than a private shop. To work at a dealer means that the mechanic is specifically trained on that type of vehicles. They have access to factory shop manuals for your specific vehicle as well as service updates that a private garage may not have access to. You also have to be ASE Certified to work at a dealer. Not so at a private garage. HTH. -Jim

4,805

Initially it sounded like a parasitic battery drain problem. Power steering is a hydraulic system and should be unrelated, even on a Cadillac. Suggestion would be to seek out a different Cadillac service department although this service department's recommendations will probably be on file for another service department to access.

1 out of 1 people think this is helpful.
16,620

Well Jim we can agree to disagree. I have a few friends who worked for new car dealerships as mechanics. They have opened their own successful independent garages and told me plenty of stories of how ase certified mechanics who do as they are told by the service managers. The new car stores are just looking to make money, first. Customer service is second place. There are plenty of well qualified independent mechanics who are as good and better than the new car dealership guys. Not saying they aren't qualified or anything like that but they don't run and control the service department. The general manager, service manager and service writers do.

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