# Service bulletin 18\-067\-26

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: 11035055
- Published by NHTSA: 2026\-07\-18
- Manufacturer's number: 18\-067\-26
- Manufacturer's date: 2026\-07\-09
- NHTSA component: ENGINE; POWER TRAIN

## NHTSA's summary

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 \(DTCs\): ● P0088\-00 \- Fuel Rail Pressure Too High \- Bank 1. ● P208B\-00 \- Reductant Pump 1 Control Performance. ● P2540\-00 \- Low Pressure Fuel System Sensor Circuit Range/Performance. ● P0506\-00 \- Idle Control System RPM \- Lower Than Expected. ● P20CF\-00 \- Exhaust Aftertreatment Fuel Injector "A" Stuck Open. ● P20DB\-00 \- Exhaust Aftertreatment Fuel Supply Control Stuck Open. ● P040B\-00 \- EGR Temperature Sensor 1 Circuit Performance. ● U0109\-00 \- Lost Communication With Fuel Pump Control Module. ● P1451\-00 \- Diesel Particulate Filter System Performance. ● P2463\-00 \- Diesel Particulate Filter Restriction \- Soot Accumulation Bank 1. ● P1191\-00\-Inlet Air Temperature Sensor Rational/Performance. ● P242F\-00\-Diesel Particulate Filter Restriction \- Ash Accumulation. ● P229F\-00 \- NOX Sensor Circuit Range/Performance \- Bank 1. ● P2281\-00 \- Air Leak Between MAF And Throttle Body. ● P0087\-00 \- Fuel Rail Pressure Too Low. ● P2540\-00 \- Low Pressure Fuel System Sensor Circuit Range/Performance. ● P2543\-00 \- Low Pressure Fuel System Sensor Circuit Intermittent. ● P214D\-00 \- SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. ● P242B\-00 \- Exhaust Gas Temperature Sensor Circuit Performance \- Bank 1 Sensor 3. ● P24DA \- Particulate Matter Sensor Exhaust Sample Error Bank 1. ● P20EE\-00 \- SCR NOx Catalyst Efficiency Below Threshold \- Bank 1 Catalyst 1. ● P226C\-00 \- Turbocharger Boost Control "A" Slow Response. ● P2281\-00 \- Air Leak Between Maf And Throttle Body. ● P229F\-00 \- Nox Sensor Circuit Range/performance \- Bank 1. ● P0100\-00 \- Mass Or Volume Air Flow Sensor "A" Circuit. ● P203F\-00 \- Reductant Level Too Low. ● P0423\-00 \- Heated Catalyst Efficiency Below Threshold Bank 1. ● P06B9\-00 \- Cylinder 1 Glow Plug Circuit Performance. This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035055-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035055-9999.pdf)

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

## Components

Engine, Transmission and driveline

## Trouble codes named

P0087, P0088, P0100, P040B, P0423, P0506, P06B9, P1191, P1451, P203F, P208B, P20CF, P20DB, P20EE, P214D, P226C, P2281, P229F, P242B, P242F, P2463, P24DA, P2540, P2543, U0109

## Vehicles listed

- 2026 RAM 2500
- 2026 RAM 3500

## Recalls for the same vehicles and component

- [2026225](/recalls/tc/2026225.md), 2026-05-07: Powertrain
- [26V288000](/recalls/nhtsa/26V288000.md), 2026-05-07: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## Other bulletins for the same vehicles and component

- [114739](/bulletins/11037595.md), 2026-09-30, Service bulletin: POWER TRAIN. TRANSMISSION KIT \- WITH TORQUE CONVERTER
- [25\-004\-26 REV. A](/bulletins/11037580.md), 2026-09-30, Service bulletin: ENGINE; ELECTRICAL SYSTEM. Exhaust Gas Temperature \(EGT\) Sensor Water Intrusion ’s VIN MUST be listed in VIP or your RSU VIN list. NOTE: This bulletin applies to ● The Vehicle MUST be built on or before February 16, 2026 \(MDH North America, Enlarged 0216XX\). Europe, Middle East \& ● The vehicle MUST be equipped with a 6.7L I6 Cummins Turbo Africa, and India \& Asia Diesel Engine \(Sales Codes ETM or ETN\). Pacific markets. CUSTOMER Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code \(DTC\): ● P2482\-00 \- Exhaust Gas Temperature Sensor Circuit High \- Bank 1 Sensor 5. Customers may also comment on the following: ● Soot load is too high and power derate occurs due to regen being disabled. This bulletin involves replacing the EGT sensors.
- [9100922](/bulletins/11037476.md), 2026-09-23, Service bulletin: ENGINE; ELECTRICAL SYSTEM. SENSOR Exhaust Temperature If this sensor is being replaced due to an early\-life P242B pending fault code, clear the fault code and perform the Powertrain Verification Test. Only replace the sensor if P242B returns as an active fault code.
- [25\-004\-26](/bulletins/11037339.md), 2026-09-17, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Exhaust Gas Temperature \(EGT\) Sensor Water Intrusion CUSTOMER Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code \(DTC\): ● P2482\-00 \- Exhaust Gas Temperature Sensor Circuit High \- Bank 1 Sensor 5. Customers may also comment on the following: ● Soot load is too high and power derate occurs due to regen being disabled. This bulletin involves replacing the EGT sensors.
- [07\-006\-26 REV. A](/bulletins/11037272.md), 2026-09-10, Service bulletin: ENGINE. Engine Overheat Customers may comment on the following: SYMPTOM: ● Vehicle overheating. ● Temperature gauge is reading hot. ● Overheat symbol is illuminated in Instrument Panel Cluster \(IPC\). This bulletin involves inspecting the thermostat housing part number and, if necessary, replacing the thermostat.
- [114254](/bulletins/11036754.md), 2026-09-03, Service bulletin: ENGINE. RADIATOR \- ENGINE COOLING
- [114255](/bulletins/11036753.md), 2026-09-03, Service bulletin: ENGINE. RADIATOR \- ENGINE COOLING
- [9100882](/bulletins/11036366.md), 2026-08-26, Service bulletin: ENGINE. PULLEY Fan If replacing 68209745AA, also replace 68723388AA, 05086958AB, and 68000833AD. Retain bolts, mark each with its original location, and submit a STAR ticket for parts return. Bolt P/Ns: 68005469AA, 03928873, 68445520AA, 04886003AA.
- [07\-006\-26](/bulletins/11036360.md), 2026-08-26, Service bulletin: ENGINE. Engine Overheat Customers may comment on the following: ● Vehicle overheating. ● Temperature gauge is reading hot. ● Overheat symbol is illuminated in Instrument Panel Cluster \(IPC\). This bulletin involves inspecting the thermostat housing part number and, if necessary, replacing the thermostat.
- [113754](/bulletins/11035982.md), 2026-08-06, Service bulletin: ELECTRICAL SYSTEM; ENGINE. SENSOR \- EXHAUST TEMPERATURE

JSON: [/v1/bulletins/11035055](/v1/bulletins/11035055)

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