Jeep Grand Cherokee 2026 — technical service bulletin
Bulletin 08-310-26 · NHTSA communication 11036155 · issued Aug 7, 2026
Technical service bulletin
communication type
Electrical System
component
2026
model years
2
vehicle entries
Official summary
Malfunction Indicator Lamp (MIL) With Diagnostic Trouble Code (DTC) P0607 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P0607-00 - ECU Internal Performance. Customers may also comment on the following: ● The check engine lamp is illuminated on the Instrument Panel Cluster (IPC) when the vehicle is started.
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.