WenmarOpen by Wenmar Pro

P0504 on the 2013 Land Rover LR4

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name P0504
SSM527572021-11-08. Service bulletin. Brake Switch Adjustment and Setting Procedure - Excessfive brake pedal pressure required to get the auto transmission out of park, warning lights on the instrument pack with associated DTCs for brake light switch (P0504-27, P0504-62, C1A96-64) or brakes s
SSM5275722021-11-08. Service bulletin. Brake Switch Adjustment and Setting Procedure - Excessfive brake pedal pressure required to get the auto transmission out of park, warning lights on the instrument pack with associated DTCs for brake light switch (P0504-27, P0504-62, C1A96-64) or brakes showing signs of drag and binding.
SSM527572017-06-12. Service bulletin. "ISSUE: EXCESSIVE BRAKE PEDAL PRESSURE REQUIRED TO GET THE AUTO TRANSMISSION OUT OF PARK, WARNING LIGHTS ON THE INSTRUMENT PACK WITH ASSOCIATED DTC'S FOR BRAKE LIGHT SWITCH (P0504-27, P0504-62, C1A96-64) OR BRAKES SHOWING SIGNS OF DRAG AND BINDING. CAUSE: INCORRECT BRAKE LIGHT SWITCH SETTING. NOTE: ANALYSIS OF RETURNED BRAKE SWITCHES HAVE SHOWN NO ISSUES WITH THE BRAKE SWITCH ITSELF. DO NOT REPLACE THE SWITCH BEFORE ADJUSTMENT IS CARRIED OUT."

3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.