Trailer Stability Assist Performance
The trailer stability assist function detects implausible trailer sway response or sensor input.
Affected components
- Abs control module
- Trailer recognition module
- Yaw rate sensor
Common causes
- Medium likelihood: Trailer module communication fault
- Medium likelihood: Yaw sensor drift
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.