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

asked by on

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.

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.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Hello my 2012 Buick lacrose service battery charging system light is coming on

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

Get a quote

What others are asking

Q: Loud chatter at idle only

Hello, thanks for writing in. If the flexplate was changed within the last year, then I would usually start by isolating that area of the noise. This noise can occur if the bolts are coming loose. If they are fine...

Q: What does the Tighten Gas Cap message mean?

The Tighten Gas Cap message can appear on the driver information center (DIC). When the DIC displays this message, your gas cap is not properly tightened. After the cap is properly fastened, the alert will go away.

Q: my99 3.1 gm idles up and down replaced the iac and egr what gives then dies but driving its ok

You most likely have a intake vacuum leak. You should have the computer scanned first to make sure you do not have a TPS problem or other sensor issue. Pinch off the vacuum line to the brake booster to see...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...