Jeep TSB #0811423
2022 Jeep Grand Cherokee
Affected Component: BACK OVER PREVENTION:SOFTWARE
- Summary
- Flash: Drivetrain Control Module (DTCM) Updates A moaning, grinding, or groaning type noise while driving between 80 - 112 kph (50 - 70 mph). Noise is not heard when the front axle disconnect is disengaged. (The noise can happen more as the ambient temperatures become colder.) This bulletin involves reprogramming the DTCM with the latest software available.