2005 GMC Sierra 1500 5.3L P0650 Code: Red Battery Light and Park Indicator Issue After Instrument Cluster Replacement
I'm experiencing two unusual issues on my 2005 GMC Sierra 1500 5.3L Reg Cab 2WD after replacing the instrument cluster: 1. A persistent red battery light remains on even after removing and reinstalling the cluster. 2. When I shift the gear lever to 'P' (park), the 'P' indicator does not highlight, despite all other park functions working correctly — doors unlock, transmission shifts into park, etc. The OBD-II scanner is showing a P065
This post has more questions than answers. Let's clarify: - Is the vehicle stock as originally manufactured? - Why was the instrument cluster removed and replaced? Was it the same unit reinstalled? - When the key is turned to 'ON', does the Malfunction Indicator Lamp (MIL) perform a self-test and stay lit? - Does your OBD-II scanner display all stored diagnostic trouble codes (DTCs)? What specific codes are present? - I strongly advise against swapping instrument clusters between vehicles — this can trigger DTCs. Did the odometer reading change? Was there any DTC generated by the 2003 Tahoe during testing? A full scan of the current truck is essential to diagnose the root cause.