Cruise Control Temporarily Unavailable (Informational)
The TESLA-DI_A175 (Tesla Drive Inverter (DI)) EV fault code means: Cruise Control Temporarily Unavailable (Informational). This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- beginner
- Estimated cost
- $0 if it clears with conditions; diagnosis cost applies only if an underlying camera/sensor fault keeps cruise disabled.
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Common Symptoms
- Cruise control / Traffic-Aware Cruise Control will not engage
- Message that cruise control is unavailable for this drive
- Often clears on the next drive or after conditions improve
- Manual driving is unaffected
Probable Causes (Ranked by Likelihood)
- Conditions not met for cruise control (poor lane/road data, weather, or sensor visibility) Likely
- A camera/sensor obstruction or a temporary Autopilot-related limitation Possible
- A fault elsewhere (for example a drive or sensor alert) disabling cruise as a precaution Possible
Step-by-Step Diagnostic Procedure
This usually clears on its own -- try again on the next drive or once conditions (weather, road markings, camera visibility) improve.
Make sure the cameras and sensors are clean and unobstructed (no dirt, ice, or stickers near the cameras).
If cruise control stays unavailable across many drives, check the active alert list for an underlying camera/sensor/drive fault and have Tesla service look at it.
Frequently Asked Questions
What does DI_a175 mean?
It means cruise control (including Traffic-Aware Cruise Control) is temporarily unavailable. It is usually an informational message tied to conditions or a temporary limitation, not a hardware failure, and often clears on the next drive.
How do I fix cruise control unavailable on my Tesla?
First clean the cameras/sensors and try again on a fresh drive in good conditions. If it stays unavailable across many drives, look for a related camera or sensor alert and have Tesla service diagnose it.
Sources
This page is built from documented references. Verify against your own service info before repair work.