Service bulletin 08-326-26 REV. A

Manufacturer communication, from NHTSA Manufacturer Communications

Published by NHTSA: Sep 3, 2026
Manufacturer: JEEP
NHTSA ID: 11036748
NHTSA category: Service Bulletin/Repair Instructions
Applies to, as stated by NHTSA: JEEP CHEROKEE 2026
Component, as stated by NHTSA: ELECTRICAL SYSTEM

Text of the manufacturer communication

Malfunction Indicator Illuminated (MIL) - P04DF-00 Has Set Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P04DF-00 - Evap System Purge Control Valve 1 Performance/Stuck Open.

Manufacturer document number: 08-326-26 REV. A
Date of the communication: 2026-08-28

View original source on NHTSA.gov

NHTSA reuses some ID numbers across record types. If its page lists more than one record, this one is the manufacturer communication dated Sep 3, 2026.

For the 2022 Jeep Wrangler

Unlimited Rubicon 4xe

Ignored

Relevance of 3% is under one half, so the notice is ignored whatever the other figures say.

Vehicle relevance: 3%
Attention: 13%
Interrupt probability: 12%

Importance to this owner: 0.1 of 4, none
Vehicle area the notice is about: None

This manufacturer communication does not appear to warrant attention for this vehicle.

Decided by jev-1.13.0 in 158 ms from 1,632 input tokens. Jev returns these figures and nothing else. It gives no reasons, and none are written for it here. The figures describe how relevant the notice is, not the condition of any vehicle.

Checked by code against NHTSA's fields

A plain comparison with the structured fields NHTSA filled in. Separate from Jev's decision.

YesNHTSA names this make
NoNHTSA names this model
n/aNHTSA lists model year 2022 for this model

The same notice, every vehicle

Relevance	Attention	Interrupt	State
3%	13%	12%	Ignored
2%	5%	6%	Ignored
2%	5%	5%	Ignored
1%	5%	6%	Ignored
1%	5%	6%	Ignored
1%	6%	7%	Ignored
1%	5%	6%	Ignored
1%	5%	6%	Ignored
1%	5%	6%	Ignored
1%	5%	6%	Ignored
1%	4%	6%	Ignored
1%	5%	6%	Ignored
1%	5%	5%	Ignored
1%	5%	6%	Ignored
1%	5%	5%	Ignored
1%	6%	6%	Ignored

Select a vehicle to see its attention and interrupt figures above.