Jeep Grand Cherokee 2022 — technical service bulletin
Bulletin 0800224A · NHTSA communication 10251859 · issued Jan 19, 2024
Technical service bulletin
communication type
Electrical System
component
2022
model years
1
vehicle entries
Official 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. NOTE: This noise happens more as the ambient temperatures become less than 5 ? (41 ?). This bulletin involves reprogramming the DTCM with the latest available software.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.