General Description

General Description

CAUTION:
When the inspection procedure must be performed pressing each OnStar (R) button, call the OnStar (R) call center first.

When VIU and VCU are replaced, contact to the OnStar (R) call center to ask for set-up.

INSPECTION

Before performing diagnostics, check the following items which might affect OnStar (R) problems.

1. BATTERY
Measure the battery voltage and specific gravity of electrolyte.

Standard voltage: 12 V or more
Specific gravity: Above 1.260

2. AIRBAG
Inspect that airbag system is normal.