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. Momentarily hold each steering wheel control switch in the UP, then DOWN position.

The desired function of the radio or climate control operates properly.

Steering Wheel Controls Inoperative

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