# Service bulletin 1804823 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: 10236933 - Published by NHTSA: 2023\-05\-30 - Manufacturer's number: 1804823 - Manufacturer's date: 2023\-04\-15 - NHTSA component: EQUIPMENT; ENGINE AND ENGINE COOLING ## NHTSA's summary wiTECH Small Leak Verification Test \(SLVT\) \- P0456\-EVAP SYSTEM SMALL LEAK ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236933-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236933-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Engine, Equipment and accessories ## Trouble codes named P0456 ## Vehicles listed - 2014 to 2016 ALFA ROMEO 4C - 2015 to 2017 ALFA ROMEO 4C SPIDER - 2018 ALFA ROMEO 4C - 2017 to 2023 ALFA ROMEO GIULIA - 2017 ALFA ROMEO STELVIO - 2018 to 2023 ALFA ROMEO STELVIO - 2023 ALFA ROMEO TONALE - 2012 to 2017 CHRYSLER 200 - 2018 CHRYSLER 200 - 2012 to 2023 CHRYSLER 300 - 2020 to 2021 CHRYSLER 300 AWD - 2012 to 2017 CHRYSLER 300C - 2012 to 2013 CHRYSLER GRAND VOYAGER - 2015 to 2016 CHRYSLER GRAND VOYAGER - 2016 CHRYSLER PACIFICA - 2017 to 2023 CHRYSLER PACIFICA - 2017 to 2022 CHRYSLER PACIFICA PLUG\-IN HYBRID - 2012 to 2013 CHRYSLER SEBRING - 2012 to 2016 CHRYSLER TOWN AND COUNTRY - 2017 to 2018 CHRYSLER TOWN AND COUNTRY - 2012 to 2013 CHRYSLER VOYAGER - 2020 to 2023 CHRYSLER VOYAGER - 2012 to 2014 DODGE AVENGER - 2015 to 2016 DODGE AVENGER - 2012 DODGE CALIBER - 2012 to 2020 DODGE CARAVAN - 2012 DODGE CARGO VAN - 2012 to 2023 DODGE CHALLENGER - 2012 to 2023 DODGE CHARGER - 2012 to 2014 DODGE CHARGER POLICE - 2013 to 2016 DODGE DART - 2012 to 2022 DODGE DURANGO - 2023 DODGE DURANGO1 - 2012 to 2020 DODGE GRAND CARAVAN - 2023 DODGE HORNET - 2012 to 2020 DODGE JOURNEY - 2022 DODGE JOURNEY - 2012 DODGE NITRO - 2012 DODGE RAM 1500 - 2012 DODGE RAM 2500 - 2012 DODGE RAM 3500 - 2012 DODGE RAM 4500 - 2012 DODGE RAM 5500 - 2013 to 2015 DODGE VIPER - 2016 to 2017 DODGE VIPER COUPE - 2017 to 2020 FIAT 124 SPIDER - 2012 to 2019 FIAT 500 - 2020 FIAT 500 - 2013 to 2017 FIAT 500E - 2014 to 2016 FIAT 500L - 2016 to 2022 FIAT 500X - 2017 to 2019 FIAT SPIDER - 2014 to 2023 JEEP CHEROKEE - 2022 to 2023 JEEP COMMANDER - 2012 to 2023 JEEP COMPASS - 2019 JEEP GLADIATOR - 2020 to 2023 JEEP GLADIATOR - 2012 to 2023 JEEP GRAND CHEROKEE - 2021 JEEP GRAND WAGONEER - 2022 to 2023 JEEP GRAND WAGONEER - 2012 JEEP LIBERTY - 2012 to 2018 JEEP PATRIOT - 2015 to 2023 JEEP RENEGADE - 2022 to 2023 JEEP WAGONEER - 2012 to 2023 JEEP WRANGLER - 2021 JEEP WRANGLER 4XE - 2013 to 2023 RAM 1500 - 2013 to 2023 RAM 2500 - 2013 to 2023 RAM 3500 - 2013 to 2023 RAM 4500 - 2013 to 2023 RAM 5500 - 2013 to 2016 RAM C/V TRADESMAN - 2014 to 2023 RAM PROMASTER - 2015 RAM PROMASTER 2500 - 2016 RAM PROMASTER 3500 - 2015 to 2021 RAM PROMASTER CITY - 2013 to 2016 SRT VIPER - 2012 redundant \-DODGE RAM 1500 ## Recalls for the same vehicles and component - [2026433](/recalls/tc/2026433.md), 2026-09-10: Accessories - [26V296000](/recalls/nhtsa/26V296000.md), 2026-05-11: EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:CRITICAL FASTENERS - [25V877000](/recalls/nhtsa/25V877000.md), 2025-12-17: EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR: - [25V876000](/recalls/nhtsa/25V876000.md), 2025-12-17: EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR: - [2025617](/recalls/tc/2025617.md), 2025-11-06: Engine - [25V766000](/recalls/nhtsa/25V766000.md), 2025-11-06: ENGINE - [25V388000](/recalls/nhtsa/25V388000.md), 2025-06-12: EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA - [25V083000](/recalls/nhtsa/25V083000.md), 2025-02-13: EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO \(TOUCH\)SCREEN/MONITOR/UNIT; BACK OVER PREVENTION:DISPLAY FUNCTION - [2023338](/recalls/tc/2023338.md), 2023-06-08: Engine - [23V412000](/recalls/nhtsa/23V412000.md), 2023-06-08: ENGINE ## Other bulletins for the same vehicles and component - [18\-081\-26](/bulletins/11038538.md), 2026-10-16, Service bulletin: ENGINE. Not applicable to vehicles built for US market. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code \(DTC\): ● P0607 \- Control Module Performance. Customers may also comment on one or more of the following: ● The vehicle will not start until the ignition is cycled for a second time. ● Engine malfunction \(injection\) warning lamp illuminated in the Instrument Panel Cluster \(IPC\). This bulletin involves reprogramming the PCM with the latest available software. - [18\-081\-26](/bulletins/11038501.md), 2026-10-16, Service bulletin: ENGINE. Not applicable to vehicles built for US market. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code \(DTC\): ● P0607 \- Control Module Performance. Customers may also comment on one or more of the following: ● The vehicle will not start until the ignition is cycled for a second time. ● Engine malfunction \(injection\) warning lamp illuminated in the Instrument Panel Cluster \(IPC\). This bulletin involves reprogramming the PCM with the latest available software. - [9100923](/bulletins/11037599.md), 2026-09-30, Service bulletin: ELECTRICAL SYSTEM; ENGINE. AIR CLEANER \- NONE Instruction to Dealers while ordering the PN\# 68137142AD. 1. If the Air Cleaner Assembly is functional and only the MAF Sensor has failed, the dealer should order and replace only the MAF Sensor\(68002441AC\). 2. If the Air Cleaner Assembly has failed and the MAF Sensor remains functional, the dealer should order the new Air Cleaner Assembly PN\(68137142AD\) and reuse the existing MAF Sensor\(68002441AC\) from the failed assembly. 3. If both the Air Cleaner Assembly and the MAF Sensor have failed, the dealer should order both the New Air Cleaner Assembly\(68137142AD\) and the MAF Sensor\(68002441AC\) as separate service parts. - [S2609000011](/bulletins/11037354.md), 2026-09-17, Service bulletin: ENGINE. MIL\-On and/or Engine Oil Leak - [9100898](/bulletins/11037347.md), 2026-09-17, Service bulletin: ENGINE. Engine PNs: MY 24\-26 WD/DT \(5.7L\) Code P00B is being misdiagnosed and incorrect parts are being installed causing over repair. Refer to SOL S2609000006 The IAFM Foam Engine Valley Cover \(PN 53013735AB\) does not provide sufficient clearance for proper routing of the MDS solenoid jumper harness \(PN 05148163AE\). As a result, the harness may become compressed by the foam cover. To prevent unnecessary part replacement, the MDS solenoid jumper harness \(PN 05148163AE\) should be inspected for damage or pinch conditions prior to replacing the following part numbers: Engine PNs: 68409343AA 68409357AA 68450915AA OCV PNs: 53022338AB Phaser PNs: 53022298AA 53022298AB - [09\-022\-26](/bulletins/11037275.md), 2026-09-10, Service bulletin: ENGINE. Not applicable to vehicles built for US market. Right Engine Insulator Noise \*\*Customers may comment on the following:\*\* SYMPTOM: ● Metallic clicking noises when when moving the vehicle forward and reverse. \*\*This bulletin involves replacing the right engine insulator.\*\* - [C6C Combo REV1](/bulletins/11037264.md), 2026-09-10, Service campaign: ENGINE. Customer Satisfaction Notification C6C – Crankshaft Damper Dealer Notification - [C6C Combo](/bulletins/11037263.md), 2026-09-10, Service campaign: ENGINE. Customer Satisfaction Notification C6C – Crankshaft Damper Dealer Notification - [9100363 Rev 3](/bulletins/11036762.md), 2026-09-03, Service bulletin: ENGINE. Turbocharger Kit Please note that many turbo components are serviceable separately and full turbo replacement may not be required. If the turbo is being inspected for: Noise/Rattle: Inspect heat shield fasteners for looseness and check the wastegate actuator/linkage for binding. The actuator kit is serviced separately. Oil Leak: Inspect the turbo oil feed O\-ring area for leaks. O\-ring is serviced separately. - [114254](/bulletins/11036754.md), 2026-09-03, Service bulletin: ENGINE. RADIATOR \- ENGINE COOLING JSON: [/v1/bulletins/10236933](/v1/bulletins/10236933) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%201804823&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10236933&vehicle=Service%20bulletin%201804823)