Q: Hello my 2012 Buick lacrose service battery charging system light is coming on

asked by on October 09, 2017

Hello my 2012 Buick LaCrosse service battery charging light is on and losing power and cutting engine off

My car has 95000 miles.
My car has an automatic transmission.

Battery is dead Inspection $79.99 - $99.99 Get a Quote
Battery Replacement $232.05 - $347.15 Get a Quote
Alternator Replacement $151.62 - $1237.14 Get a Quote

If an engine fault causes enough loss in RPM at idle, the charging system warning light could come on. Another possibility is the charging system and/or battery are faulty and thus there is inadequate power to run the ignition system, fuel pump, etc. When that happens the engine tends to die. The most common scenario though is a battery/charging system fault and so the first thing to do is check charging system output against factory specifications. It is also possible that a failed serpentine belt is not properly driving the alternator; that should be checked, too. The battery should be carefully evaluated in a load test. Batteries are very important. If the battery only has a marginal pass on the load test you should just simply install a new battery to reduce diagnostic headaches. To have the issue you are writing in about diagnosed and resolved, please request an alternator/battery inspection/replacement and the responding certified mechanic from YourMechanic will get this resolved for you promptly, right at your location. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $65/hr

What others are asking

I own a Cadillac 2012 SRX whose driver-side headlight is dimmer than the passenger side.

Hi there. With having one headlight dimmer than the other and having the light bulb replaced with a new bulb and still having the same result, then I recommend replacing the ballast resister for the headlight that is dimmer. This...

How do I make a phone call with Bluetooth?

If your phone is Bluetooth capable and it’s paired with your car’s audio system, you can use the hands-free system to accept or make phone calls. Here’s how to do it: Turn the ignition to on. Make sure your...

Popping noises in gear shift - 2012 Mercedes-Benz CLS63 AMG

Hello. Usually transmission popping noises are caused by issues with the transmission, however there are many possibilities. The first thing I would check, is to see if this vehicle has a dipstick that allows you to check the fluid. I...

How do I use the rear armrest and pass through?

The rear seat of your car is designed with a built-in armrest and cup holder. It folds back into the seat when not in use. If it is in use, the center seat cannot be used (you’ll be limited to...

Loud knocking noise

First the location of the knocking must be determined. The fix will vary greatly depending on the cause of the noise. Suspension components may have become worn or broken. Brake pads with worn hardware can also make some noise as...

1st into 2nd gear rattles.

Hi there. It sounds like you may have a gear/synchronizer problem. It's most likely concerning the second gear assembly. The synchronizer allows the second gear to match the wheel speed before engaging to allow for a smooth shift. If you're...

My blinde spot monitor and Driver Assist are off and they will not let me turn them back on. I have two messages saying they neede

The car wash could just be coincidental to the failure or it could represent a source of water intrusion in an electrical connector and that has caused the two systems to malfunction. The two systems are electrical in nature and...

How do I adjust the eight-way power seats?

The eight-way power seats give you lost of flexibility in how you adjust your seat. Here are the various ways to adjust the eight-way power seats: 1. Locate the power seat adjustment control on the outboard side of the side....

What does the high-beam on light mean?

The high-beam on light is located on your instnrument panel. When the light is illuminated, the high-beams are currently on. The light will disappear when the high-beams are turned off.

Related articles

A Buyer’s Guide to the 2012 BMW 7-Series
When When power, performance and luxury are at the top of your list, the 2012 BMW 7-Series is sure to be a perfect fit. From the stylish design to two length options for enhanced comfort, three available engines and two...
A Buyer’s Guide to the 2012 Dodge Grand Caravan
When When you were a kid, almost every family you knew had a Dodge Grand Caravan. However, thanks to the rise of SUVs, CUVs (crossover utility vehicles), and sport wagons, this model has lost a lot of ground over the...
2012 Toyota Prius vs. 2012 Chevrolet Volt: Which One Should I Buy?
While these two vehicles are both certainly cost-effective to drive, they can be difficult to compare due to the Prius’ entry in the mid-size category and the Volt living squarely in the compact car category. Both of these vehicles are...