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May 21, 2021 Service bulletin

Flash: HVAC Diagnostic and System Updates This bulletin involves reprogramming the HVAC control module...

Jeep technical service bulletin 24-007-21 for 2018-2021 Jeep Wrangler and 2020-2021 Jeep Gladiator.

Bulletin number
24-007-21
Component
Electrical system
Summary
Flash: HVAC Diagnostic and System Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may notice one or more of the following:Intermittent change of smell or humidity level in vehicle. An intermittent blast of warm air when A/C is on. Intermittent increase of outside air through the HVAC system. In addition, the following software enhancement is also available:Improvements for customer concerns of 'cabin too warm', specifically in the mid ambient temperature range 4.5-15.5 °C (40-60 °F).

Owners of these vehicles have filed 1,144 complaints in the electrical category.

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