GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Did you review the Air Seat Suspension Description?

Go to Step 2

Go to Air Suspension Seat Description

2

Operate the air seat switch to the up position.

Did the air seat move up?

Go to Step 3

Go to Step 4

3

Operate the air seat switch to the down position.

Did the air seat move down?

System OK

Go to Step 6

4

Does the system contain air pressure?

Go to Step 5

Air Compressor Fails to Maintain Sufficient Pressure in Air Compressor

or

Go to Auxiliary Air Compressor Inoperative in Air Compressor - Auxiliary

5

Inspect the air pressure lines and connections for loss of air or for restrictions.

Did you find and correct the condition?

Go to Step 9

Go to Step 7

6

Inspect the air exhaust line and connections for restrictions.

Did you find and correct the condition?

Go to Step 9

Go to Step 7

7

Inspect the air suspension seat bladder for leaks or tears.

Did you find and correct the condition?

Go to Step 9

Go to Step 8

8

Replace the air seat switch.

Did you complete the repair?

Go to Step 9

--

9

Operate the system to verify the repair.

Did you correct the condition?

System OK

Go to Step 2