Service bulletin 21-009-20
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 | 10173360 |
| Published by NHTSA | 2020-04-06 |
| Manufacturer's number | 21-009-20 |
| Manufacturer's date | 2020-02-11 |
| NHTSA component | POWER TRAIN; AIR BAGS; TRAILER HITCHES; WHEELS; EXTERIOR LIGHTING; BACK OVER PREVENTION; ELECTRICAL SYSTEM |
NHTSA's summary
Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: P1DDE-00 - Ignition Run-Start Input 1-2 Correlation(Sales Code DFR Only). P1DF3-00 - ECU Not Initialized(Sales Code DFR Only). P0733-00 - Gear 3 Shift Incorrect Ratio (while operating in 4-Lo range). P0716-00 - Input Shaft Speed Sensor 1 Performance. P0721-00 - Output Shaft Speed Sensor Circuit Performance. P1DB6-00 - Vehicle Speed Signal Performance. P1DAB-00 - Vehicle Speed Undetermined. P215C-00 - Output Shaft Speed Wheel Speed Correlation. P0607-00 - ECU Internal Performance. P1DAC-00-Engine Speed Undetermined. P07BF-00 - Input/Turbine Shaft Speed Sensor 1 Circuit Low. P07C0-00 - Input/Turbine Shaft Speed Sensor 1 Circuit High. P077C-00 - Output Shaft Speed Sensor Circuit Low. P077D-00 - Output Shaft Speed Sensor Circuit High. P177F-00 - Output Shaft Speed Sensor Out Of Range High. P1778-00 - Input-Turbine Shaft Speed Sensor A Out Of Range High. P0731-00 - Gear 1 Shift Incorrect Ratio. P0979-00 - Shift Solenoid 3 Control Circuit Low. P1DCD-00-TCM Monitoring Processor Performance Multiple Clutches Locked Up. In addition, the following software enhancements are also available:Auto-start Improvements. Low speed coast down bump improvements. Tip in bump improvements. Bump during tow/haul high throttle acceleration. Gear hunting during cruise resume. Gear hunting during uphill trailer tow. Cruise control under-speed during uphill trailer tow. Gear hunting during highway speed operation. Hang in gear when driver desires earlier upshift/lower engine speed operation. Coast-down downshift improvements for 6-5, 5-4 and 4-3. Coast-down downshift improvements for 2-1. Cold temperature downshift improvements for 6-5 and 4-3. Cold temperature upshift improvements for 1-2, 2-3, 3-4
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Air bags, Driver assistance, Electrical system, Lighting, Trailer hitch, Transmission and driveline, Wheels, Backup camera
Trouble codes named
P0607, P0716, P0721, P0731, P0733, P077C, P077D, P07BF, P07C0, P0979, P1778, P177F, P1DAB, P1DAC, P1DB6, P1DCD, P1DDE, P1DF3, P215C
| RAM 1500 | 2019 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 20V191000 | 2020-09-10. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA |
|---|
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
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|---|---|
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| S2025000001 | 2024-01-02. Service bulletin. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set. |
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| 0901923 | 2023-12-18. Service bulletin. Cold Engine Ticking Noise From Exhaust Manifold Area The customer may describe an ticking noise from the exhaust manifold location(s) when cold. This bulletin involves replacing the exhaust manifolds. |
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| S2023000037 | 2023-10-02. Service bulletin. Wind Whistle Noise From Dash A Pillar Area While Driving |
| S1808000152 | 2023-10-02. Service bulletin. CEL (Check Engine Lamp) Illuminated, P057B Brake Pedal Position Sensor Performance |