TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Buick for this TSB. Call your local Buick dealer's service department & ask for a copy of TSB# 17-NA-293.

Affected Component: EQUIPMENT:APPLIANCE:AIR CONDITIONER

Summary

Rear Air Conditioning Inoperative, Blowing Warm Air Condition Some customers may comment that the 2nd row / rear HVAC blows warm air when air conditioning is commanded Cause - This condition may be caused by the auxiliary temperature valve, internal to the A/C distributor case, being fractured. Note: The technician may find the pivot for the temperature valve has pulled away from the actuator motor (2). Verify if the temperature valve is working properly: • If it has been validated that the rear A/C does blow warm, replace the A/C distributor case. • If the temperature valve has been found to be working correctly, refer to SI for further diagnostics.

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