Jeep TSB #18-074-14
2015 Jeep Grand Cherokee
Affected Component: ELECTRICAL SYSTEM:SOFTWARE
- Summary
- Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following software is being released to improve A/C compressor relay duty cycle operation to prevent ignition off battery draw.