Q640NAS1

Situation: An issue has been identified on a limited number of vehicles within the listed Affected Vehicle Range may have been manufactured away from process and, in some cases, the air suspension system amber warning light may appear on the instrument cluster with one or more of the Diagnostic Trouble Codes (DTC) stored in the Chassis Control Module (CHCM): C1A31­12, C1A32­12, C1A33­12, C1A34­12, C1A35­12, C1A36­12, C1A37­12, and/or C1A38­12.