# Service bulletin 21\-004\-15

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: 10148601
- Published by NHTSA: 2018\-11\-19
- Manufacturer's number: 21\-004\-15
- Manufacturer's date: 2015\-01\-24
- NHTSA component: POWER TRAIN; ENGINE; ELECTRICAL SYSTEM

## NHTSA's summary

Flash: 845RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module \(TCM\) with the latest available software. The following TCM calibration improvements are available for vehicles equipped an 845RE Automatic Transmission \(Sales Code DFL\). These updates are listed by vehicle and engine. LD and LX vehicles equipped with a 3.6L engine \(Sales Code ERB\) ? Software to correct a harsh bump feel during a 2\-1 downshift. ? Software to enable the scan tool based transmission ?Quick Learn.? ? Software to address customer concerns of Malfunction Indicator Lamp \(MIL\) illumination and Diagnostic Trouble Code \(DTC\) P215C Output Shaft Speed, Wheel Speed Correlation setting on AWD equipped vehicles. LX and WK vehicles equipped with a 3.0L engine \(Sales Code EHD\) ? Software to correct a harsh bump feel during a 2\-1 downshift. WK vehicles equipped with a 3.6L engine \(Sales Code ERB\) ? ECO mode will not retain settings. If ECO mode is turned off, it will turn back on after the ignition is cycled. ? Software to correct a harsh bump feel during a 2\-1 downshift. DS vehicles equipped with 3.6L engine \(Sales Code ERB\) ? Software to correct a harsh bump feel during a 2\-1 downshift. ? Software to address a customer?s concern of less than desired shift quality in Four Wheel Drive \(4wd\) Low mode during medium to heavy acceleration. ? Software to address customer concerns of Malfunction Indicator Lamp \(MIL\) illumination and Diagnostic Trouble Code \(DTC\) P215C Output Shaft Speed, Wheel Speed Correlation setting on AWD equipped vehicles. ? Software improvements to powertrain braking in Tow/Haul mode. ? Software to improve downshift response from a medium to heavy pedal acceleration. ? Driveability improvements at higher altitudes. ? Software to improve acceleration during cruise control operation ? Software to correct a condition where DTC U11C3 \- ESM Lost Communication With TCM On D\-Pt CAN may have been displayed inste

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10148601-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10148601-0001.pdf)

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

## Components

Electrical system, Engine, Transmission and driveline

## Trouble codes named

P215C, U11C3

## Vehicles listed

- 2014 CHRYSLER 300
- 2014 DODGE CHARGER
- 2014 DODGE DURANGO
- 2014 JEEP GRAND CHEROKEE
- 2014 RAM 1500

## Recalls for the same vehicles and component

- [2023338](/recalls/tc/2023338.md), 2023-06-08: Engine
- [23V411000](/recalls/nhtsa/23V411000.md), 2023-06-08: ENGINE AND ENGINE COOLING
- [2020544](/recalls/tc/2020544.md), 2020-11-12: Engine
- [20V699000](/recalls/nhtsa/20V699000.md), 2020-11-12: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\)
- [2020371](/recalls/tc/2020371.md), 2020-08-13: Engine
- [20V475000](/recalls/nhtsa/20V475000.md), 2020-08-13: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [2019535](/recalls/tc/2019535.md), 2019-10-25: Engine
- [19V757000](/recalls/nhtsa/19V757000.md), 2019-10-24: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\)
- [2018269](/recalls/tc/2018269.md), 2018-05-17: Engine
- [18V332000](/recalls/nhtsa/18V332000.md), 2018-05-17: ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING

## Other bulletins for the same vehicles and component

- [S1623000028 Rev. K](/bulletins/11033975.md), 2026-06-18, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
- [S1623000028 REV.I](/bulletins/11033308.md), 2026-06-03, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
- [112191](/bulletins/11032984.md), 2026-05-28, Service bulletin: ENGINE. COOLER \- ENGINE OIL
- [112192](/bulletins/11032983.md), 2026-05-28, Service bulletin: ENGINE. COOLER \- ENGINE OIL
- [S2623000023](/bulletins/11031337.md), 2026-04-15, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. Power Liftgate Inoperative.
- [S2223000022 REV.E](/bulletins/11031240.md), 2026-04-10, Service bulletin: ELECTRICAL SYSTEM. Power Liftgate Inoperative Or Intermittently Will Not Open Or Close.
- [S2608000015](/bulletins/11030266.md), 2026-03-25, Service bulletin: ELECTRICAL SYSTEM; SEATS. Memory Seat Does Not Work There Is No Response from The Seat While Pressing the Memory Seat Profiles from the Switch Diagnostic Trouble Code \(DTC\) B1D9B\-54\- Seat Horizontal Front Stop Not Learned\-Missing Calibration
- [18\-044\-26](/bulletins/11030229.md), 2026-03-25, Service bulletin: ENGINE. Flash: Powertrain Control Module \(PCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● \*\*P0111\-00 \- Intake Air Temperature Sensor 1 Circuit Range Performance Bank 1. \(In Active or Stored status\) ● P0071\-00 \- Ambient Air Temperature Sensor Performance. \(In Active or Stored status\) ● P0072\-00 \- Ambient Air Temperature Sensor Circuit "A" Low. \(In Active or Stored status\) ● P0073\-00 \- Ambient Air Temperature Sensor Circuit "A" High. \(In Active or Stored status\) ● P0011\-00 \- Bank 1 Camshaft 1 Position Timing Over Advanced Or. \(In Active or Stored status\) ● P25E4\-00 \- B Camshaft Position \- Unable To Achieve Locked Position Bank 1. \(In Active or Stored status\) ● P05BD\-00 \- Stop\-Start Mode Switch Range/Performance. \(In Active or Stored status\) ● P0116\-00 \- Engine Coolant Temperature Sensor 1 Performance. \(In Active or Stored status\) ● P062B\-00 \- Internal Control Module Fuel Injector Control Performance. \(In Active or Stored status\) ● P0604\-00 \- Internal Control Module Random Access Memory Ram Error. \(In Active or Stored status\) ● P060C\-00 \- Internal Control Module Main Processor Performance. \(In Active or Stored status\)\*\* ● P018B\-00 \- Fuel Pressure Sensor "B" Circuit Range/performance. \*\*\(In Active or Stored status\)\*\* ● P1CEA\-00 \- Boost Side EVAP Purge System Performance. \*\*\(In Active or Stored status\)\*\* ● P06DD\-00 \- Engine Oil Pressure Control Circuit Performance/Stuck Off. \*\*\(In Active or Stored status\)\*\* ● P00C6\-00 \- Fuel Rail Pressure Too Low \- Engine Cranking. \*\*\(In Active or Stored status\)\*\* ● P0300\-00 \- Multiple Cylinder Misfire. \*\*\(In Active or Stored status\)\*\* Customers may also experience one or more of the following: ● \*\*Oil Level High Warning in the Instrument Panel Cluster \(IPC\).\*\* ● Fully Autonomous Parking Assist \(FAPA\) is not deactivated when accelerator pedal is pressed. ● Vehicle is not heating up fast enough at freezi
- [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.
- [S2608000010](/bulletins/11030042.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. Active Diagnostic Trouble Code \(DTC\) B1A10\-00, B1A11\-00, B1A12\- 00, B1A13\-00\-, B1A14\-00, B1A15\-00, B1A16\-00, and B1A17\-00 in The Radio Frequency Hub \(RFH\)

JSON: [/v1/bulletins/10148601](/v1/bulletins/10148601)

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