TESLA-DI_A191 low Tesla Drive Inverter (DI)

Press the Brake Pedal to Shift (Informational)

The TESLA-DI_A191 (Tesla Drive Inverter (DI)) EV fault code means: Press the Brake Pedal to Shift (Informational). This is a low severity code.

My Garage →
Keep driving?
Yes, but fix soon
DIY difficulty
beginner
Estimated cost
$0 in normal use; only a non-registering brake-pedal switch (rare) would need service.
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Common Symptoms

  • Message to press the brake pedal in order to shift out of Park or change gear
  • The car will not change from Park/Neutral until the brake is applied
  • No warning once you press the brake and shift
  • Normal, expected behavior

Probable Causes (Ranked by Likelihood)

  • Normal interlock: Tesla (like most cars) requires the brake pedal to be pressed before shifting out of Park or into gear Very Likely
  • A brake-pedal switch fault could, rarely, prevent the car from recognizing the brake is pressed Possible

Step-by-Step Diagnostic Procedure

  1. This is an informational prompt, not a fault -- simply press and hold the brake pedal, then shift.

  2. If the car will not shift even with the brake firmly pressed, the brake-pedal position switch may not be registering -- have Tesla service check it.

  3. No repair is needed in normal operation.

Frequently Asked Questions

What does "press brake pedal to shift" (DI_a191) mean on a Tesla?

It is the normal shift interlock: you must have the brake pedal pressed to shift out of Park or into a drive gear. Press and hold the brake, then shift. It is not a fault.

My Tesla will not shift even when I press the brake -- what now?

If the car will not shift with the brake firmly applied, the brake-pedal position switch may not be registering the press. That is rare; have Tesla service check the brake switch.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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