Service VME - Model Year Use of Single-Note Horn

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

A production change has been made to eliminate one of the dual horns previously used on Aztek and Rendezvous during the 2001 and 2002 model years. This is a running change for the 2003 model year beginning with VIN 506871. The single note horn is now used on all 2003 model year vehicles built after the breakpoint while earlier vehicles used two horns until the plant stock was exhausted.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.