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Jeep TSB #21-014-14
2013 Jeep Grand Cherokee
TSB Document:
Affected Component: TRAILER HITCHES
- Summary
- Flash: Transmission Shift Enhancements This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software. NOTE: This bulletin applies to the following vehicles: ? Wrangler vehicles equipped with the WA580 Automatic Transmission (Sales Code DGJ) ? Challenger vehicles equipped with either the 3.6L engine (Sales Code ERB) or the 6.4L Engine (Sales Code ESH or ESG) and the WA580 Automatic Transmission (.Sales Code DGJ) ? Durango vehicles equipped with the 3.6L engine (Sales Code ERB) and the WA580 Automatic Transmission (Sales Code DGJ) ? Grand Cherokee vehicles equipped with the 6.4L engine (Sales Code ESG) for all markets except Australia (Sales Code 8AL) or the 3.6L engine (Sales Code ERB) (All Markets) and the WA580 Automatic Transmission (Sales Code DGJ). Australian vehicles equipped with the 6.4L can refer to Service Bulletin 21-010-14
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