GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to RUN.
  2. Close all of the doors.
  3. Do not apply the park brake.

The driver information center (DIC) illuminates.

Driver Information Center (DIC) Display Inoperative

2

Turn the headlamp switch to PARK.

The DIC display dims.

Driver Information Center (DIC) Display Does Not Dim

3

Press the OFF button. Hold the OFF button for 3 seconds.

The heating, ventilation, and air conditioning (HVAC) temperature display changes between F and C.

Driver Information Center (DIC) Switch Inoperative

4

Press each DIC button.

Observe the result shown in the Button Functionality Table.

Driver Information Center (DIC) Switch Inoperative

5

  1. Apply the brake pedal.
  2. Move the gear selector to REVERSE.
  3. Open the left front door.
  4. Press any DIC button.
  1. The DIC displays a DRIVER DOOR AJAR message.
  2. A double chime sounds.
  3. The DRIVER DOOR AJAR message disappears when you press any DIC button.
    •  Chime Inoperative

6

Press the RCL button.

The DIC briefly displays a DRIVER DOOR AJAR message.

7

  1. Close the left front door.
  2. Open the right front door.
  1. The DIC displays a PASSENGER DOOR AJAR message.
  2. A double chime sounds.
    •  Chime Inoperative

8

  1. Close the right front door.
  2. Open the left rear door.
  1. The DIC displays a LEFT REAR DOOR AJAR message.
  2. A double chime sounds.
    •  Chime Inoperative

9

  1. Close the left rear door.
  2. Open the right rear door.
  1. The DIC displays a RIGHT REAR DOOR AJAR message.
  2. A double chime sounds.
    •  Chime Inoperative

10

  1. Close the right rear door.
  2. Move the gear selector to PARK.
  3. Start the engine.
  4. Apply the brake pedal.
  5. Move the gear selector to REVERSE.
  6. Apply the park brake.
  1. The DIC displays a PARK BRAKE SET message.
  2. A fast chime sounds.
    • PARK BRAKE SET Chime Always On or Inoperative
    •  Chime Inoperative

11

  1. Turn on the left turn signal.
  2. Turn on the right turn signal.
  3. Drive the vehicle 1.2 km (3/4 mile).
  1. The DIC displays TURN SIGNAL ON? message.
  2. A double chime sounds.
    •  Chime Inoperative

12

Use a scan tool in order to test for DIC diagnostic trouble codes (DTC).

No DTCs are present.

DTCs are present.

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.