When the service charging system warning comes on, and you are experiencing the symptoms you are describing, very commonly this a problem with the alternator or battery. The normal battery voltage range is 11.5 to 15.5 volts.
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Batterys test ok then i would then check the volatage regulator then the alternator then start looking at drain in glow plugs / grid heater has become excessive and is drainging your batteries below the threshold of the computers comfort zone.
Service battery charging system gmc yukon. My 2007 equinox has a warning light that reads ''service battery charging system'' that comes on when i drive the vehicle uphill. #7 sep 24, 2014. I check all the cables coming off the battery.
Have a yukon, when i was driving battery light came on along with message service battery charging system then all lights/sensors come on such as abs, airbag, tire pressure, stabilitrak off, traction off, check engine light, etc. The charging system in vehicles hasnt changed that much in the last 50 years. If this feature is on, assume that your vehicle will stop running and get it fixed immediately.
I got 2007 gmc yukon. Battery, charging system and starting system print date: The new gm charging system is actually called the electrical power management system.
Charging system light the charging system light comes on briefly when the ignition is turned on, but the engine is not running, as a check to show the light is working. It should go out when the engine is started. So, my 2009 yukon denali throws the service battery charging system message on a daily basis.
The message seems to only come on while the truck is idling or moving at slow speeds (like when i drive down my muddy driveway or stopped at a light). On some vehicles, this message displays if there is a problem with the battery charging system. 2008 gmc yukon 6.2l eng denali service manual:
Once all the lights come on, then the lights begin to. If the battery passes the load test, leave the tester connected and start the engine Connect the starting/charging system tester to the battery and perform a load test;
Reconnect the battery and retest the charging system; The system also monitors the battery to determine its condition and charge it in a way that prolongs its life. The bcm and the ecm will send a signal to the dic for the service battery charging system message to be displayed.
Once all the lights come on, then the lights begin to. A friend thats a tech for gm told me as long as the battery charged back up with no bad cells it wasnt a problem. The battery saver is usually activated when an alternator goes bad, but there can be other causes as well.
Gm does this to improve gas mileage and reduce the need to generate power when its not needed. Also, make sure the alternator is providing enough current, not just voltage. Had problems with battery drain before, so i replaced it.
All seem to be tight. If the light stays on, or comes on while driving, there may be a problem with the electrical charging system. Q:the battery charging system light came on as we we were driving.
Gmc yukon owners have reported 23 problems related to battery (under the electrical system category). If the battery fails the load test, replace it; The little red battery light comes on as well and stays on for varying times.
If none of the major components are at fault then you are going to have to start checking wiring and ground cables to make sure nothing has deteriorated or broken. I have a 2009 ltz and i was getting this warning once in a while. You should get your charging system checked.you will have to take it to a service shop or dealer.have the charging system load tested.you could have a bad alternator.if you have under 36k miles then you are still under warranty.hope this.
The engine turns the alternator, which charges the battery. There isnt a lot to it, which makes diagnosing it relatively simple. You will get the service charging system message for this simple problem.
Its designed to monitor vehicle voltage and only charge the battery when necessary. Service battery charging system issues. If the negative battery cable was replaced, install the battery current sensor, if equipped.
Take your vehicle to your mechanic and have them test your battery strength. The warning went away, but just came back the other day. It is turned on when a charging system dtc is current.
2007 gmc acadia 3.6 ltr. The battery is primarily there to. Refer to battery current sensor replacement.
This only happens every couple of days or every other. Under certain conditions, the charging system light may also turn on in the instrument panel cluster. Have a yukon, when i was driving battery light came on along with message service battery charging system then all lights/sensors come on such as abs, airbag, tire pressure, stabilitrak off, traction off, check engine light, etc.
The most recently reported issues are listed below. the bcm indicates there is. The battery saver increases the driving range of your sierra when the system is not properly charging.
Install the negative battery cable to the vehicle, if equipped with a battery current sensor. My tahoe only goes on short 20 min trips to and from work, so i am assuming its not getting a long enough run to charge up the battery. I would pull 1 battery out at a time and load test to determine if they are about to fail.
the ecm detects generator output is less than 11 volts or greater than 16 the bcm determines system voltage is less than 11 volts or greater than 16 volts. I've noticed that when the service charging system warning comes on the voltmeter reads well over 14v. About 8 months ago i upgraded the battery from the stock gm one to a bluestar 770cca battery.
The message will turn off when the conditions for clearing. With the engine running, take a voltage reading at the battery terminals. See charging system light on page 518.
I accidentally ran the battery real low on my 2011 silverado a while back when i was working on the truck, when i restarted it i got the same message on the dash. Made it home and after turning car off, it would not start. It also has a loud whining noise.
Chevy truck forum | silverado sierra gmc truck forums Gmc yukon battery light causes. While driving home the dic stated it was in battery saving mode.
service battery charging system. the indicator will illuminate under these conditions: I haven't bought a multimeter yet to test the resistance or voltage drop. Now the car runs fine, except i get the service battery charging system warning on the dic.
Also please check out the statistics and reliability analysis of gmc yukon based on all problems reported for the yukon. Keep 1 battery in to keep all the computers powered and happy.
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