GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Visually inspect the battery for obvious damage. Refer to Battery Replacement .

Is there any damage that may cause electrolyte loss?

--

Go to Step 5

Go to Step 2

2

Check the built-in hydrometer.

Is a green dot visible?

--

Go to Step 4

Go to Step 3

3

Load test the vehicle.

Does the voltage drop below the minimum listed?

--

Go to Step 5

System OK

4

Charge the battery. Refer to Battery Replacement .

Does the voltage drop below the minimum listed?

--

Go to Step 5

System OK

5

Replace the battery. Refer to Battery Replacement .

Is the repair complete?

--

System OK

--