# Service bulletin 18\-026\-16

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10142206
- Published by NHTSA: 2018\-06\-25
- Manufacturer's number: 18\-026\-16
- Manufacturer's date: 2016\-03\-15
- NHTSA component: POWER TRAIN

## NHTSA's summary

Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with the latest available software. A small number of customers may feel or experience a vibration at 3,000 rpm.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10142206-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10142206-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2016 JEEP GRAND CHEROKEE

## Recalls for the same vehicles and component

- [16V249000](/recalls/nhtsa/16V249000.md), 2016-04-27: EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH; POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH

## Other bulletins for the same vehicles and component

- [S2623000023](/bulletins/11031337.md), 2026-04-15, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. Power Liftgate Inoperative.
- [S2621000003 REV.A](/bulletins/11030138.md), 2026-03-18, Service bulletin: POWER TRAIN. The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75\-PHEV, 8HP75\-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
- [101232](/bulletins/11010205.md), 2024-11-07, Service bulletin: POWER TRAIN. Plate \- Planetary
- [S2309000013](/bulletins/10248877.md), 2024-01-16, Service bulletin: POWER TRAIN. Verifying Camshaft Diagnosis
- [W41](/bulletins/10229318.md), 2023-01-09, Service bulletin: POWER TRAIN. Customer Satisfaction Notification W41 Reprogram Powertrain Control Module
- [9003704](/bulletins/10229255.md), 2023-01-09, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN. Transmission Oil Pan, Heater \(TMU\), Tube or O\-ring Applies to vehicles equipped with 8 speed transmissions only; if you have a leak that appears to be at the pan the use of proper leak detection is recommended. The fluid in the 8 speeds can be detected with a black light and there are aftermarket spray on leak detection materials to help ensure that the leak is properly diagnosed and not from another location such as cooler lines, heater tubes, or case porosity. Please note that the transmission pan gasket is available for many of the 8 speed applications FCA offers. Please review the available quick connect and transfer tube parts, as replacement of the TMU may not be required. If a TOC line connection is found to be the source, the quick connect may need replacement. If the leak source is coming from the connection of the TMU to the transmission, the transfer tube may need replacement. When parts are returned to the QEC the retaining clips \(snap ring\) for the quick disconnect fittings are missing. \(This leaves a question as to whether the clips were missing from the assembly plant, or the technician removed them in order to make line removal easier.\) Please return the clips with the transmission heater and note if they were not there to begin with. For any questions regarding transmission heater, contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.
- [S1709000010](/bulletins/10229031.md), 2023-01-09, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear \(roller failure\) on one or more cam lobes and that camshaft/lifter replacement is necessary.
- [9003704](/bulletins/10224898.md), 2022-10-31, Service bulletin: POWER TRAIN; ENGINE AND ENGINE COOLING. Trans Oil Pan, Heater Tube or O\-ring, Heater Applies to vehicles equipped with 8 speed transmissions only; If you have a leak that appears to be at the pan the use of proper leak detection is recommended. The fluid in the 8 speeds can be detected with a black light and there are aftermarket spray on leak detection materials to help ensure that the leak is properly diagnosed and not from another location such as cooler lines, heater tubes, or case porosity. If you have a leak concern please note that the transmission pan gasket is available for many of the 8 speed applications FCA offers. See your parts specialist for the proper gasket for the repair.
- [1808716REVA](/bulletins/10224864.md), 2022-10-31, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. Engine Oil Viscosity Upgrade And Flash Enhancements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) and the Transmission Control Module \(TCM\). It also involves changing the engine oil with new 5W40 engine oil and applying a sticker to the engine oil filler cap. An addendum card will need to be added in the owner's manual. The following powertrain system improvements/enhancements are included in this software release: · Fan calibration. · Transmission calibration. · Revised oil change algorithm.
- [T23](/bulletins/10224702.md), 2022-10-24, Service bulletin: FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; POWER TRAIN. Customer Satisfaction Notification T23 ? EGR Valve Function The Powertrain Control Module \(PCM\) on about 415,000 of the above vehicles has software that may be operating the Exhaust Gas Recirculation valve \(EGR\) with an aggressive seating velocity. An aggressive seating velocity may damage the EGR valve. As a result this condition may illuminate the Malfunction Indicator Lamp \(MIL\) and display a P0404 code. The PCM must be reprogrammed on all involved vehicles.

JSON: [/v1/bulletins/10142206](/v1/bulletins/10142206)

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