dtcm
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Serv 4WD light on, No 4WD options/2WD only
Hello all, I have a 2020 3500 Limited Crew Cab 60" C/A 4x4 with 6-speed automatic Aisin AS69RC HD transmission. After only 25,000 miles, the Serv 4WD caution light came on and stayed on at startup. Normally, this briefly turns on at startup and then goes out. Other than a few recalls, I've...- KeepOnTruckin
- Thread
- dtcm front axle disconnect serv 4wd service 4wd
- Replies: 2
- Forum: Heavy Duty
