Flash: Powertrain Control Module (PCM) Updates
Jeep technical service bulletin 18-027-21 for 2021 Jeep Grand Cherokee.
- Bulletin number
- 18-027-21
- Component
- Power train
- Summary
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may notice the following condition:The oil change interval is too short. The oil change message shows up at around 12,000 km / 7,456 mi or earlier and the normal oil change interval is 12 months or 20,000 km / 12,427 mi.
Owners of these vehicles have filed 61 complaints in the transmission category.
Vehicles covered
- Jeep Grand Cherokee 2021 2021
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