Technical Service Bulletin 1807623 — 2018 JEEP GRAND CHEROKEE
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
Bulletin Details
| TSB ID | 1807623 |
| Manufacturer | |
| Vehicle | 2018 JEEP GRAND CHEROKEE |
| Component | POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM) |
| Communication Date |
Bulletin Summary
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? **P0441 - EVAP Purge System Performance.** ? P0456 - EVAP System Small Leak. NOTE: If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. ? P06EF - Engine Restart Performance. This bulletin involves reprogramming the PCM with the latest available software.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2018 JEEP GRAND CHEROKEE
18-001-26
POWER TRAIN
21-009-26
POWER TRAIN
08-396-25
ELECTRICAL SYSTEM
9100498
ENGINE
9100448
SEATS
93023
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
1808423
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
1807623
ELECTRICAL SYSTEM
1807623
POWER TRAIN
0809223
ELECTRICAL SYSTEM:SOFTWARE