Flash: Powertrain Control Module (PCM) Updates
Jeep technical service bulletin 18-007-21 for 2021 Jeep Grand Cherokee.
- Bulletin number
- 18-007-21
- Component
- Electrical system
- Summary
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may comment on the following conditions: Poor air conditioning performance. Air conditioning compressor will not stop cycling and the evaporator freezes up.
Owners of these vehicles have filed 115 complaints in the electrical category.
Vehicles covered
- Jeep Grand Cherokee 2021 2021
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