GM Service Manual Online
For 1990-2009 cars only

The following service procedures require either a programming or a setup event performed for a complete repair.

Variable Effort Steering Control Module Replacement

If the variable effort steering control module is replaced, the control module programming procedure must be performed. Refer to Service Programming System (SPS).

Variable Effort Steering Control Module Reprogramming

Do not reprogram the variable effort steering control module unless directed by a service procedure or a service bulletin.

If the variable effort steering control module needs to be reprogrammed, refer to Service Programming System (SPS).