SueHarada
Active Member
- Joined
- Nov 24, 2022
- Messages
- 38
- Reaction score
- 24
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- Age
- 66
I switched to the 4WD mode on my 2020 1500 Bighorn. Yellow msg shows up: "service 4wd". Originally when this appeared, I figured ok, I'll replace the differential lock actuating module, (its kinda sorta huge) which is attached to the front axle. Since the truck had over 50k, maybe this is the issue, disconnect the wire, work the new part in, its abit tricky. Message goes away, stayed that way for awhile, now its back, 4WD still works, but what else could it be? The connector is gtg. Any thoughts anyone?
