P0456 on CHRYSLER PACIFICA — EVAP System Leak Detected (very small leak)

Q: "What does P0456 mean on a CHRYSLER PACIFICA?"

"P0456 indicates: EVAP System Leak Detected (very small leak). This is a emission controls code. 3 CHRYSLER PACIFICA owners have reported this to NHTSA."

Q: "What are the most common causes of P0456 on CHRYSLER PACIFICA?"

"Based on 3 NHTSA reports, the most commonly cited components are: Fuel/Propulsion System, Suspension,Unknown Or Other,Engine. These percentages are based on the component field in owner complaints."

Q: "Is P0456 serious on my CHRYSLER PACIFICA?"

"Of 3 NHTSA reports for this code on CHRYSLER PACIFICA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my CHRYSLER PACIFICA shows P0456?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0456 Means on Your CHRYSLER PACIFICA

P0456 is a diagnostic trouble code indicating: EVAP System Leak Detected (very small leak). This code relates to the emission controls system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

3 CHRYSLER PACIFICA owners have reported this issue to NHTSA across model years 2006-2017. Most reports come from the 2006, 2017 model years. The most commonly reported component is Fuel/Propulsion System (66.7% of reports).

Real CHRYSLER PACIFICA Owner Reports

Source: NHTSA Complaints Database

"Secondary pump needs to be replaced: the check engine light was on. the vehicle has under 55,000 miles and failed emissions test with the following codes: p0457, p0455, p0456. an evap system smoke test was performed and found a leaking secondary unit. needs secondary pump replaced."

— 2006 CHRYSLER PACIFICA owner · FUEL/PROPULSION SYSTEM · Filed 06/25/2019

"We have a 2006 chrysler pacifica that we purchased used in 2008 with 26k miles. in 2011 we started experience problems. simultaneously, we came up with codes p0700, p0420 and p0456 and have had to have the transmission rebuilt , the catalyst converter replaced and new fuel pump due to the evap leak."

— 2006 CHRYSLER PACIFICA owner · SUSPENSION,UNKNOWN OR OTHER,ENGINE · Filed 07/06/2013

"Fuel leak.. with gasoline odor and check engine light with canner code p0456, when i start up the car."

— 2017 CHRYSLER PACIFICA owner · FUEL/PROPULSION SYSTEM · Filed 11/11/2019

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

2

'06

1

'17

Common Causes on CHRYSLER PACIFICA

Based on NHTSA complaint component analysis for this vehicle.

FUEL/PROPULSION SYSTEM 66.7%

SUSPENSION,UNKNOWN or OTHER,ENGINE 33.3%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0456 mean on a CHRYSLER PACIFICA? ▾

P0456 indicates: EVAP System Leak Detected (very small leak). This is a emission controls code. 3 CHRYSLER PACIFICA owners have reported this to NHTSA.

What are the most common causes of P0456 on CHRYSLER PACIFICA? ▾

Based on 3 NHTSA reports, the most commonly cited components are: Fuel/Propulsion System, Suspension,Unknown Or Other,Engine. These percentages are based on the component field in owner complaints.

Is P0456 serious on my CHRYSLER PACIFICA? ▾

Of 3 NHTSA reports for this code on CHRYSLER PACIFICA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my CHRYSLER PACIFICA shows P0456? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.