Diagnostic trouble code · Volkswagen
P0456 on Volkswagen vehicles A very small leak in the evaporative emissions system
P0456 is named on 51 Volkswagen model years (2016–2026): 1,157 manufacturer filings and 3 owner reports in NHTSA’s files, across Atlas, Tiguan, Taos, Jetta, Golf / GTI and 6 more.
Powertrain 51 model years 1,157 manufacturer filings 3 owner reports
Which Volkswagen model years name P0456
Source: NHTSA manufacturer communications and complaintsA model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Equipment 278 Not specified 178 Engine 137 Electrical System 126
Advertisement
Volkswagen filings that name P0456
Source: NHTSA manufacturer communicationsBulletins and campaigns Volkswagen filed with NHTSA whose summary names P0456. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- VIN4APIN20220621 Service bulletin2022-06-21 · Structure
- Customer states rattle noise from the underbody heat shields Any thermostat related concerns (faults, leaks, etc.) Customer states MIL-on, fault P0442 and/or P0456 stored in ECM memory Customer states blind spot monitoring error in MFI Customer states blower stays on Customer states airbag light on Customer states KESSY door lock/unlock inoperative Customer states cannot set seat memory Cu
- VIN4APIN20220706 Service bulletin2022-07-06 · Engine And Engine Cooling — Engine — Engine Control Module (Ecu/Ecm) — Software
- Customer states rattle noise from the underbody heat shields Any thermostat related concerns (faults, leaks, etc.) Customer states MIL-on, fault P0442 and/or P0456 stored in ECM memory Customer states blind spot monitoring error in MFI Customer states blower stays on Customer states airbag light on Customer states KESSY door lock/unlock inoperative Customer states AC inoperative Customer s
- VIN4APIN20220707 Service bulletin2022-07-07 · Equipment
- Customer states rattle noise from the underbody heat shields Any thermostat related concerns (faults, leaks, etc.) Customer states MIL-on, fault P0442 and/or P0456 stored in ECM memory Customer states blind spot monitoring error in MFI Customer states blower stays on Customer states airbag light on Customer states KESSY door lock/unlock inoperative Customer states AC inoperative Customer s
- VIN4APIN20221017 Service bulletin2022-10-17 · Equipment — Other — Owners/Service/Other Manual
- Customer states rattle noise from the underbody heat shields Customer states MIL-on, fault P0442 and/or P0456 stored in ECM memory Customer states rattle noise under vehicle Customer states MIL-on, fault P0463 stored in ECM memory Customer states noise from the front end Customer states blind spot monitoring error in MFI Customer states MIL-on/Airbag light, fault U019900 and/or B101715 store
- VIN4APIN20221025 Service bulletin2022-10-25 · Seats
- Customer states rattle noise from the underbody heat shields Customer states MIL-on, fault P0442 and/or P0456 stored in ECM memory Customer states rattle noise under vehicle Customer states MIL-on, fault P0463 stored in ECM memory Customer states blind spot monitoring error in MFI Customer states MIL-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states ai
- VIN4APIN20221031 Service bulletin2022-10-31 · Latches/Locks/Linkages — Doors — Lock
- Customer states rattle noise from the underbody heat shields Customer states MIL-on, fault P0456 and/or P0442 stored in ECM memory Customer states blind spot monitoring error in MFI Customer states MIL-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states airbag light on Customer states KESSY door lock/unlock inoperative "Customer states there is a visual
- VIN4APIN20190304 Service bulletin2019-03-04 · Equipment
- Customer states noise from heat shield, MIL-on P11AD/P11AE/P11AF, MIL-on P0456, Customer states 2nd row seat rattles while driving, Customer states front window(s) noisy during operation, Customer states the sunshade is binding, Customer states noise from front suspension while driving, Customer states MIL-on and/or multiple warning lights, Customer states Kessy inoperative possibly with "Keyles
- VIN4APIN20190308 Service bulletin2019-03-08 · Equipment
- Customer states noise from heat shield, MIL-on P11AD/P11AE/P11AF, MIL-on P0456, Customer states 2nd row seat rattles while driving, Customer states front window(s) noisy during operation, Customer states the sunshade is binding, Customer states noise from front suspension while driving, Customer states MIL-on and/or multiple warning lights, Customer states Kessy inoperative possibly with "Keyles
- VIN4APIN20190315 Service bulletin2019-03-15 · Equipment
- Customer states noise from heat shield, MIL-on P11AD/P11AE/P11AF, MIL-on P0456, Customer states 2nd row seat rattles while driving, Customer states front window(s) noisy during operation, Customer states the sunshade is binding, Customer states MIL-on and/or multiple warning lights, Customer states Kessy inoperative possibly with "Keyless Defective" in MFI,
- VIN4APIN20221122 Service bulletin2022-11-22 · Engine And Engine Cooling
- Customer states rattle noise from the underbody heat shields Customer states MIL-on, fault P0456 and/or P0442 stored in ECM memory Customer states noise from the front end (usually right side) Customer states MIL-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states airbag light on Customer states KESSY door lock/unlock inoperative "Customer states there i
- VIN4APIN20230126 Service bulletin2023-01-26 · Engine And Engine Cooling — Engine — Engine Control Module (Ecu/Ecm) — Software
- Customer states MIL-on, fault P0456 and/or P0442 stored in ECM memory Customer states fuel tank difficult to fill, pump keeps clicking off Customer states MIL-on, fault P0456 and/or P0442 stored in ECM memory Customer states noise from the front end Customer states MIL-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states KESSY door lock/unlock inoperativ
- VIN4APIN20230130 Service bulletin2023-01-30 · Equipment — Electrical
- Customer states MIL-on, fault P0456 and/or P0442 stored in ECM memory Customer states fuel tank difficult to fill, pump keeps clicking off Customer states MIL-on, fault P0456 and/or P0442 stored in ECM memory Customer states MIL-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states KESSY door lock/unlock inoperative Customer states cannot set seat memory.
What P0456 means
Source: SAE J2012 / OBD-IIA very small leak in the evaporative emissions system.
A stored code names the test that failed, never the part that caused it. The record above is what Volkswagen and its owners have filed about it; the code’s page across every make has the whole file.
From here
Common questions
Source: NHTSA files and the OBD-II standardIs P0456 a known problem on Volkswagen vehicles?
It is a documented one: NHTSA's files hold 1,157 manufacturer filings and 3 owner reports naming P0456 on 51 Volkswagen model years (2016–2026). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Volkswagen models does P0456 appear on most?
2022 Atlas (104 documents), 2023 Atlas (82 documents), 2022 Tiguan (61 documents).
Does P0456 on a Volkswagen mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.