Chevy Service Battery Charging System – [Updated 2022]

For experienced drivers, the Chevy service battery charging system is always the top concern of a car. However, newcomers are not fully aware of this issue, which can have unpredictable consequences.

Let’s go through the following article to learn more about this topic.

What Is Chevy Service Battery Charging System?

chevy service battery charging system

Many electrical equipment and systems are equipped in cars, such as air conditioners, lights, navigation systems, ignition systems, fuel systems, etc.

Comes with a battery that is responsible for providing electricity to ensure the vehicle’s safe operation.

However, batteries usually only hold a certain amount of electricity, so something else is needed to power the entire vehicle (including the battery and all electrical power equipment).

It’s the service charging battery system.

The structure of these devices is quite similar. Whether using the service battery charging system Chevy Impala, Chevy Silverado or GMC Yukon, etc..

They all use energy derived from the motor’s rotation.

It includes a generator, electric lock, charging indicator, voltage regulator, or regulator. These parts are closely linked to ensure the intake system’s operation.

All electrical appliances require electricity to operate. Even some utilities on the car need to use electricity even when the car is at rest. This also means that the charging system has to work full time to ensure power supply for all.

Is It Okay If the Service Battery Charge System Lights Up?

Is It Okay If the Service Battery Charge System Lights Up

The battery indicator light is on, and the error message says that the vehicle’s charging system has a strange problem. This error can cause many serious consequences.

After the indicator light is on for a few minutes, the car will stall due to using up the backup power; self-discharge of energy takes place quickly, and poor energy storage capacity causes fuel consumption.

In addition, it reduces performance, harms, causes errors, damages other equipment and accessories, and even leads to the risk of fire and explosion, causing unsafe conditions on the road.

It also makes the engine still start, and the vehicle moves unexpectedly.

To fix this error, you should bring it to the repair center. However, if the lights come on in emergency situations such as in the middle of a highway, turning off the sound system, unnecessary power-consuming devices can prolong the time a bit.

Why Does Service Battery System Chevy Light Up?

Faulty Alternator

The first cause may lie in the generator. This may be due to a broken or damaged alternator drive belt.

If the alternator belt is not fine, the field wire behind it may be loose, broken, or worse; the conventional alternator may be damaged.

The generator not working can also be due to the stator winding being broken, grounded, or because the IC of the machine is damaged.

When the generator IC fails, the whole generator operation will be affected.

Conductor Wear

The next element is easy to find in long-term equipment. It could be a damaged or corroded battery cable, other wiring components of the charging system, or possibly a faulty voltage control or power supply.

It may also be due to broken bad wiring between the battery and the generator. Although this conductor is quite large, it is sturdy and can last for the vehicle’s life.

In many cases, the power cut can be caused by a rat bite during parking or simply a loose terminal contact.

Battery Error  

While many parts are essential to the operation of a car, your car will certainly function without a good battery. These wonderfully compact energy sources don’t last forever.

Several warning signs indicate your device may fail before its shelf life. It’s a hard car to start, which can sometimes make you think it’s the cold weather, but it can also be a sign of error.

Frequent exposure and changes between hot and cold temperatures can also cause its case to swell or crack. This can cause the chemicals inside to leak or not react properly, possibly causing problems.

Drive Belt Error

A car’s engine has several mechanical parts attached to each other to perform essential functions such as providing power and cooling the engine.

This makes it easier for you to drive; without the drive belts, none of the parts would work.

However, it also often crashes with expressions like:

  • Engine oil leakage is due to worn, cracked, or improperly installed alternator wires in the first place.
  • The engine will not be able to turn; the car will stall in the middle of the road.
  • Loud noises come from car engines: when the belt is worn, it will adversely affect the operation of the two shaft systems, and the car engine will appear strange noises.
  • Car engine loss of fire: When the belt is worn, it will slip on the shaft, causing a cylinder to open or close at the wrong time, leading to the engine ignition not operating properly.

The Poor Electrical Control Unit

The electronic control unit (ECU) handles and controls the vehicle’s systems. When there is a problem, the ECU will emit several symptoms that the driver can recognize:

  • Motor ‘flickering’ or shutting down suddenly: These symptoms often come and go suddenly, with no apparent frequency.
  • Engine performance issues: The engine can lose fuel and timing settings causing the vehicle to lose power, slow acceleration, poor loading, engine idling, and stalling.
  • More fuel: Your car will consume more fuel than when it was new

How To Check Service Battery Charging System?

How To Check Service Battery Charging System

Check Generator

Step 1: Usually located to the left or right of the engine compartment.

Step 2: Measure the voltage battery with Voltage readings when the engine is off.

Step 3: Read the measured voltage: When the car does not start, the measured voltage is greater than or equal to 12 Volt is normal.

Step 4: Measure the voltage when the car starts

Step 5: Read the measured voltage and compare: The machine’s running voltage is higher than when it is off, which means it still works well.

Check The Battery

  • Clean the dust on the positive and negative terminals with baking soda and a clean brush. Before cleaning, you need to remove the cables at both poles and the negative terminal first.
  • Dry everything with a clean, lint-free disposable rag.
  • Plug the terminals back, the anode first, and the negative terminal after. Then evenly coat the two poles with a layer of automotive grease or lubricating oil to prevent corrosion.
  • Check cables and clamps for scratches. The cable and clamp need to be replaced if the damage is extensive.
  • Check its case and external components. A large crack or connector should be replaced immediately, depending on the power transmission efficiency.

Check Out The Other Ingredients

In addition to the above steps, don’t forget to check the electrical power cords for breaks, rust, or corrosion.

Check the charging system condition; and check the volt systems, body control module, engine control module, external voltage regulator, and voltage battery drop.


Is Fixing A Charging System Expensive?

It also depends on the part you need to replace, your car model, and your region. The average cost at stations ranges from $250 to $1,000.

How To Use The Charging System Properly?

  • Clean off dirt on the connectors to prevent corrosion.
  • Avoid activities such as listening to music when the engine is idle.
  • Check the drive belt regularly to find the loose connections.


Above is information about the Chevy service battery charging system – an extremely important part of every car. To avoid possible problems, you need to use and regularly check it as a guide.

Wishing you safe travels. See you in the next posts.

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