A long winter garage sit usually kills the Tesla 12V, so the car won’t unlock. A local operator jumps the 12V on site and clears the lockout. The door handles present once the 12V wakes the car.

A Tesla parked in a downtown Chicago parking garage with doors that won't open

Why the Tesla locks you out

The Tesla 12V wakes the car, locks the doors, runs the contactors, and lights the dash. A 12V that has died cannot present the door handles. The driver walks up to the car and gets no response from any control. The phone-as-key cannot reach the car because the cellular module is on the same dead 12V.

A long winter garage sit is the most common cause. The sentry mode runs the cameras. The phone-as-key waits for a wake. The climate conditioning wakes the BMS briefly. The 12V drains below threshold while the high-voltage pack sits at 50 percent.

What to try first

Walk through these in order before you call a local operator.

  1. Press the brake pedal and look for any dashboard glow. A faint glow means the pack is awake. A black dash means the 12V is dead.
  2. Try the Tesla app on your phone. If the app shows the pack state, the car is still reachable on the network and the 12V is still running the cellular module.
  3. Try the key card by holding it against the driver’s side B-pillar. The card reader works even when the 12V is flat. The car unlocks and the handles present.
  4. Try the mechanical key hidden in the fob. The fob has a small blade that opens the driver’s door manually. The alarm will sound until you put the fob inside.

What the operator does

The independent operator we connect you with brings a portable 12V booster matched to your Tesla. The operator clips onto the under-hood jump points, lets the booster wake the 12V, and tries the start. The door handles present within seconds. The car unlocks. The DC-DC converter recharges the 12V once the car is on.

If the 12V is too far gone for a jump, the operator carries a replacement and swaps it on site. The car unlocks and drives normally after that. The operator quotes before any work starts and bills the driver directly. Charge Pro does not set the price.

Where this hits in the metro

Downtown garages and Lower Wacker are the worst case. The car sits for a workday or a weekend. The sentry mode runs. The 12V drains. The driver returns to a brick. The local operator pulls into the garage and clears the lockout on site.

O’Hare and Midway economy parking is the second case. A driver who parks for a week in January returns to a 12V that has drained through the cold. The operator pulls into the lot and wakes the car.

If your Tesla is dead and locked out anywhere in Cook, DuPage, Lake, Will, Kane, or McHenry county, call (858) 925-5546. We connect you with an independent operator who can quote a 12V jump or replacement on site.