One problem related to ignition has been reported for the 2003 Nissan Frontier. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Nissan Frontier based on all problems reported for the 2003 Frontier.
When ignition is turned off power door locks randomly lock vehicle by themselves, locking out driver. Happens once every one or two weeks.
| Underhood Wiring problems | |
| Electrical System problems | |
| Ignition problems |