Chevrolet TSB #23-NA-185
2021 Chevrolet Tahoe
Affected Component: EQUIPMENT
- Summary
- This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagement/Ratcheting Concerns.