# Service bulletin 08\-051\-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: 10076508
- Published by NHTSA: 2016\-07\-14
- Manufacturer's number: 08\-051\-16
- Manufacturer's date: 2016\-04\-23
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM

## NHTSA's summary

SUBJECT: Flash: Air Suspension Control Module \(ASCM\) This bulletin involves updating the ASCM with the latest available software. SYMPTOM/CONDITION: Customers may experience no ride height change with the vehicle in real cold conditions and in addition they may also have a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes \(DTCs\) have been set: · C15A1\-00 \- Unable To Obtain Desired Ride Height. · C1562\-98 \- Ride Height Air Pump Control \- Component Or System Over Temperature. · C1562\-92 \- Height Air Pump Control \- Performance Or Incorrect Operation. · C159F\-92 \- Air Suspension Reverse Valve 1 Control \- Performance Or Incorrect Operation. · C15A0\-92 \- Air Suspension Reverse Valve 2 Control \- Performance Or Incorrect Operation. · C155E\-92 \- Height Pressure Vent Control \- Performance Or Incorrect Operation • C15AA\-00 \- Air Leak During Vent. In addition, the customer may notice the following condition: • Vehicle does not change ride heights when selected in cold weather.

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, Suspension, Air suspension, Software

## Trouble codes named

C155E, C1562, C159F, C15A0, C15A1, C15AA

## Vehicles listed

- 2015 to 2016 RAM 1500

## Recalls for the same vehicles and component

- [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

- [1801816](/bulletins/10215131.md), 2022-07-05, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Powertrain Diagnostic And System Enhancements.
- [1800616](/bulletins/10215118.md), 2022-07-05, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Powertrain Diagnostic And System Enhancements.
- [21\-010\-20](/bulletins/10173369.md), 2020-04-06, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: Transmission Control Module \(TCM\) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code \(DTC\) has been set:P0731 \- Gear Ratio Error In 1st. The customer may describe the following condition:Rough or harsh shifting during coastdown to a stop \(might also be described as a 2\-1 bump\)\(Sales Code EZH\). In addition, the following software enhancements are also available:2\-1 coast down improvement\(Sales Code EXF\). 3\-2 coast down improvement\(Sales Code EXF\). Improvements to 5\-3 downshift with pedal to improve 5\-3\-2 shifts\(Sales Code EXF\). 6\-5 coast down improvement\(Sales Code EXF\). 2\-3 upshift with less than 30% pedal\(Sales Code EXF\). Clutch C adaption stability \(improves shift quality for new transmissions on gear shifts that use Clutch C\)\(Sales Code EXF\). Garage shift to D improvements\(Sales Code EXF\). Rolling garage shift\(Sales Code EXF\). Implementation of End Of Line \(EOL\) adaption to improve shift quality on brand new transmissions. Diagnostics improvements\(Sales Codes ERB, ERT and EZH\). Improve shift quality on brand new transmission\(Sales Code EZH\). Improvement to first 1\-2 shift after start\(Sales Code EZH\). Improvement to 1\-2 shift, especially for colder operating temperatures\(Sales Code EZH\). 2\-3 shift feel improvement especially for colder operating temperatures\(Sales Code EZH\). Coastdown shift improvements \(6\-5, 5\-4, 4\-3, 3\-2 and 2\-1\)\(Sales Code EZH\). Coastdown shift feel refinement for double downshifts\(Sales Code EZH\). Kickdown improvements for the following shifts \(7\-6\-5\-4\-3, 8\-6\-5\-4, 6\-3\-2, 5\-3\-2 and 4\-2\)\(Sales Code EZH\). Improvement to 4\-2\-1\(Sales Code EZH\). Improved 7th gear upshift timing. Downhill engine braking improvements.
- [08\-114\-15 REV A](/bulletins/10159965.md), 2019-05-20, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. Radio Software Enhancements This bulletin involves updating the radio's software. CAUTION: Confirm the correct radio flash file to the applicable model and family vehicle before flashing. A customer may experience one or more of the following: ? Radio display screen intermittently may go blank. ? Radio display screen may lock up. ? Back up display may not turn off. ? Loss of radio memory for skipped channels or incorrectly displaying skipped channels in the menu list. ? Charging schedule showing in the setting menu \(FF BEV only\). ? Korean language was not supported \(APAC \- Korea only\). Enhancement: ? Removing the charging schedule from showing in the setting menu \(FF BEV only\). ? Adding Korean language support \(APAC \- Korea only\).
- [21\-064\-15](/bulletins/10159950.md), 2019-05-20, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: 8HP70 Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module \(TCM\) with the latest available software. The purpose of this software release is to enable the capability to capture non Diagnostic Trouble Code \(DTC\) control module data through the Uconnect Data Recording system. In addition, the following improvements are available. 2015 WK ? Improved upshift timing in eco, base, and hill modes and while using cruise. ? Improved 8\-7, 3\-2, and 2\-1 downshift timing. ? Improved shift timing at higher altitudes. ? Improved torque converter engagement. 2015 DS ? Improved 7th gear upshift timing.
- [08\-114\-15](/bulletins/10159942.md), 2019-05-20, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Radio Software Enhancements This bulletin involves updating the radio's software. CAUTION: Confirm the correct radio flash file to the applicable model and family vehicle before flashing. A customer may experience one or more of the following: ? Radio display screen intermittently may go blank. ? Radio display screen may lock up. ? Back up display may not turn off. ? Loss of radio memory for skipped channels or incorrectly displaying skipped channels in the menu list. ? Charging schedule showing in the setting menu \(FF BEV only\). ? Korean language was not supported \(APAC \- Korea only\). Enhancement: ? Removing the charging schedule from showing in the setting menu \(FF BEV only\). ? Adding Korean language support \(APAC \- Korea only\).
- [08\-028\-16](/bulletins/10142203.md), 2018-06-25, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\); ELECTRICAL SYSTEM:SOFTWARE. RE2 RE6 RB5 RB6 Radio Software Enhancements This bulletin involves updating the radio software and navigation if equipped. A customer may experience one or more of the following conditions: · Radio display screen will lock up and reset intermittently. · Incorrect routing directions to fuel stations when using Travel Link. · Unable to turn on heated seats; icon is greyed out. · Navigation screen goes blank. · Navigation system freezes/locks up. · Vehicles with Mopar special edition radio will update radio?s splash screen. · Navigation icon shows the vehicle going backward when it?s moving forward.
- [21\-017\-16](/bulletins/10139970.md), 2018-06-11, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module \(TCM\) with the latest available software. Some customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code \(DTC\) stored in the TCM memory: · P0731 \- Gear Ratio Error In 1st. The following enhancements are included in the software update: · Improved general shift quality. · Improved 7th gear upshift timing. · Downhill engine braking improvements.
- [08\-044\-16](/bulletins/10139957.md), 2018-06-11, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Flash: Radio Frequency Hub Module \(RFHM\) Enhancement This bulletin involves updating the RFHM software. Customers may describe the instrument cluster is illuminating by itself after the ignition has been off for an extended period of time \(10 minutes or more\).
- [08\-079\-14 REV. C](/bulletins/10139921.md), 2018-06-11, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. RA3 RA4 Radio Enhancements This bulletin involves inspecting and, if required, updating the radio software. A small number of customers may experience one or more of the following: Low battery condition due to the radio remaining powered up after the ignition has been turned off \(U.S Markets Only\) The Radio may switch from SiriusXM to an AM station by itself Uconnect registration always present, can not remove Uconnect account Teleprompter does not appear when pressing the Voice Recognition \(VR\) button VR operation cancels while in media mode Radio may display previous cameras image before displaying the current image Navigation lost vehicle position, during route calculation Navigation displays are missing after vehicle heading changes Navigation giving incorrect guidance to exit the highway FM audio may switch to AM after ignition cycle Text messages appear as sender?s phone number not their name. VR phone button may not work at times Audio muted after AUX device is disconnected VR, ? Listen? to text, will only play 1st message Drive Mode: Eco, sport or normal setting may not be saved after key cycle \(LA, LD, LX and ZD Only\). Drive Mode: Shift light On/Off, out of sync \(LA, LD, LX and ZD Only\) SirusXM station information does not update. Speed adjusted volume, may not work AM or FM seek or tuner soft keys may be missing Display screen show ambient temperature as ?\- \- ? not normal values.Improvements: High Definition \(HD\) radio buffering. Spanish translation. Radio station, scroll feature. Drive Mode: Launch control button, text improvements \(LA, LD, LX and ZD Only\). Making assist calls. App functionality and screen displays. Displays correct media, song titles and tracks. Travel Link, Points Of Interest \(POI\), displaying movies and favorites. Incoming calls, audio enhancements \(LA, LD and LX Only\). Audio for strong AM stations. VR performance. Settings can only be changed in run mode, not ACC.

JSON: [/v1/bulletins/10076508](/v1/bulletins/10076508)

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