Jeep Wrangler 2020–2021 — technical service bulletin
Bulletin 1400221 · NHTSA communication 10223337 · issued May 11, 2021
Technical service bulletin
communication type
Fuel System, Gasoline
component
2020–2021
model years
2
vehicle entries
Official summary
Incorrect Fuel Delivery Module This bulletin involves replacing the fuel pump module. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: P062A - Fuel Pump Control Performance. DTC is set due to the fuel tank was assembled with the incorrect fuel pump. The customer may also experience the following:A reduced level of performance or performance issues when requesting Wide Open Throttle (WOT).
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.