The LED “on” indicators on the upfitter auxiliary switches (RPO 9L7), located on the instrument panel, may not illuminate properly on some 2023 Silverado 1500, Sierra 1500; 2024 Silverado 2500/3500 and Sierra 2500/3500 models.
With only one auxiliary switch on, the LED indicator may illuminate. However, if more than one switch is turned on, the LED indicators will not illuminate.
Regardless of how many auxiliary switches are turned on, the auxiliary switches will operate the auxiliary equipment. Only the “on” indicators on the switches are affected by this condition. (Fig. 7) Do not replace any components or auxiliary equipment.
Fig. 7
If the auxiliary switches are not illuminating correctly, reprogram the Body Control Module (BCM) with the latest calibrations.
Refer to #PIT6040 for additional information.
– Thanks to Jim Will
