2003 Jeep Liberty electrical system problems

72 owner complaints filed with NHTSA name the electrical system on the 2003 Jeep Liberty — 5% of all complaints for this model year.

Electrical System complaints

share of all complaints

74,000 mi

median reported incident mileage

1 / 3

crash / fire reports

What owners report

“Misfirers replaced engine one year later same problem misfires took to mechanic replaced spark plugs and coils . Drove 30 mile. S check engine light flashing, pulled over turned engine off.check engine light went solid for another 10 miles check engine light started flashing again. I had to pull…”
filed Feb 25, 2023
“Window regulators keep on failing. I have had to replace the regulator in each window at least once, and 2 of them have been replaced more than once. I am about to replace my 7th regulator. 3 months ago the regulator failed on my driver's side - back seat door. It got itself hung in the door panel…”
filed Oct 13, 2016

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not…
9004275 · Service Bulletin/Repair Instructions · issued Jul 22, 2020
KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not…
9004275 · Service Bulletin/Repair Instructions · issued Jul 22, 2020
Charging System, Battery Diagnostic Tools and Warranty This information only bulletin discusses using the correct test equipment for testing batteries and charging systems, and also warranty reimbursement when battery…
08-049-20 · Service Bulletin/Repair Instructions · issued Apr 22, 2020