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TRATexas Roadside Assistance

EV

Tesla and EV jump start: the 12-volt battery

An electric car carries two batteries, and only the small 12-volt one gets jumped. When it runs down, the car may not unlock or switch on even with a full main battery. We help with the 12-volt system, so tell us it's electric when you request.

Jump Start from $49 + $19 dispatch

Service price

from $49$49–$75
  • Semi trucks and 18-wheelers$140
Dispatch fee, once per job
+ $19

Service prices are plus a $19 dispatch fee charged once per job. Dispatch confirms the final price for your vehicle and location before a driver is sent.

Questions about pricing? Call (945) 412-1215

Two batteries, one we can help with

The big high-voltage battery drives the wheels and is refilled at a charger. We don't work on it, and a roadside jump doesn't charge it. The small 12-volt battery wakes the car up and runs the locks and the screens, and it's the one a jump start is for.

Once the car is on, the main battery keeps the 12-volt battery charged again. If the small battery keeps running down anyway, it may be worn out. Ask the driver whether it needs replacing; a battery replacement is $239–$255 for eligible vehicles and batteries, plus the dispatch fee.

Signs it's the 12-volt battery

Any of these points at the small battery rather than the big one:

  • The car won't unlock with the key fob or the phone app.
  • The screens stay dark when you get in.
  • A low 12-volt or low-voltage battery warning showed up in the days before.
  • On a hybrid, the car won't switch on and the ready light never comes on.

When a jump won't help

If the car shows a low main battery, or it has simply run out of range, a jump does nothing for it. That needs a charger, or a tow to one, and we provide neither. We also don't do mechanical repair.

The two look different. A low main battery shows up as a low charge level or a range warning on a screen that still works. A drained 12-volt battery shows up as a car that does nothing at all.

How to ask, and what it costs

Note the vehicle type in your request, and add the year, make and model and that it's electric in the notes, so we can dispatch the right equipment. Whether it's a Tesla or another make, the 12-volt jump start is $49–$75, plus the $19 dispatch fee, once per job.

Dispatch confirms the price for your vehicle before a driver is sent, and we text or call when the driver is on the way. A hybrid goes through the same steps; just note that it's a hybrid.

What happens after you call or send a request

  1. 1. Send a request or callShare your location, the vehicle and what happened. No account and no membership.
  2. 2. Hear the price firstDispatch confirms the service price and the $19 dispatch fee for your vehicle before a driver is sent.
  3. 3. Hear when they're on the wayWe text or call you when your driver is heading to you. Average arrival is 30 minutes; actual time depends on location and traffic.
  4. 4. Fixed where the car sitsDriveway, parking lot, garage or shoulder: there's no shop to get to.

Common questions

No. A jump only helps the 12-volt battery. A low main battery needs a charger, or a tow to one.

We help with the 12-volt system on electric cars, Teslas included. Note the vehicle type and details in your request so the right equipment is dispatched.

The idea is the same: the 12-volt battery is what gets the jump. Note that it's a hybrid in your request.

No. We don't tow.

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