Afterblow is a feature that dries the evaporator core by operating the blower motor after the engine is turned off. This aids in reducing moisture that can create undesirable odors.

The default Afterblow Configuration for this vehicle is: Afterblow Disabled.

If a change to the default setting is needed due to a customer concern, use the following procedure to select the desired configuration:

1. Connect the Scan Tool.
2. Ignition ON/ Vehicle in Service Mode
3. Select Module Diagnostics.
4. Select Body Control Module.
5. Select Configuration/Reset Functions.
6. Select HVAC Afterblow Configuration.

When afterblow is enabled, the following conditions must be met for the body control module to operate afterblow:

• The vehicle must be OFF.
• The A/C compressor must have been operating for more than 4 minutes before the vehicle was turned OFF.
• The outside air temperature must have been at least 11°C (52°F) when the compressor was last operating before the vehicle was turned OFF.
• The system voltage must be above 12 V.

Once the above conditions have been met, the blower motor will operate at a low blower speed, following the sequence below up to 5 times:

1. The blower motor will be operate at approximately 14 min., 22 min., 30 min., and 38 min. after the vehicle has been turned OFF.
2. The blower motor will operate for approximately 20–60 seconds each time.