Will Prius start after sitting 2 weeks

Yes, just make sure you disable the Smart Key System. There is a button for it.

 

Not in the Gen 3--it's automatic--per owners manual:

Battery-saving function
In the following circumstances, the entry function is disabled in order to prevent
the vehicle battery from discharging and electronic key battery from
depleting.
l When the entry function has not been used for 5 days or more
l When the electronic key has been left within approximately 6 ft. (2 m) of
the vehicle for 10 minutes or more
l If the entry function has not been used for 9 days or more, the vehicle
cannot be unlocked by a door other than the driver’s door. To unlock the
vehicle, grip the driver’s door handle or use the wireless remote control
or the mechanical key.
The system will resume operation when...
l The vehicle is locked touching the door handle lock sensor area.
l The vehicle is locked/unlocked using the wireless remote control function
(→P. 63) or the mechanical key. (→P. 533)

 

Good luck getting better than 'should' for any car. Or for that matter, any thing. "It will be all right" is always a lie.

What probability would you be willing to accept (assuming someone knew enough to give you an accurate estimate of probability)?

 

Mine has been sitting for 3 weeks now and will probably sit for a total of 5.5 weeks until I get home. I can't get my wife to drive it at all she refuses to she is happier and more comfortable in her Tacoma.

 

Suggestion, assuming you have some sort of secure parking at home:

1. Get a low amperage, intelligent charger, ie: one that will run through a variety of charging methods to bring your 12 volt battery to full charge, and then back off to just applying a small, intermittent trickle of charge, while monitoring the battery's state.

2. Leave your car at home hooked up to this charger, and take a cab or public transit to the airport.

Addendum:

While the Owners Manual cautions against this, and advocates removing the 12 volt battery completely from the car before charging, I've had no issues charging using the jump-start terminal in the underhood fuse box (positive, red terminal), and a bare metal bolt on the engine block (negative, black terminal). This is the charger I'm using:

http://smartercharger.com/battery-chargers/#mus3300

(I use it on the "car" setting, not "snowflake". Basically as it shows in the picture.)

 

Reader's Digest Version: Don't worry about it. If you park your G3 for more than a week or so very often, consider getting and using a battery tender.
Yer call.
------------------------------------

Tolstoy Version:

If I were going to park anything (normally) started by a 12-volt battery for two weeks once every year or two...I wouldn't worry about it.
As stated above...you "should" be OK.
However (comma!) 12-volt Prius batteries are hideously expensive! At least for a humble technician with my modest income.
'My' company car is already on its second start battery, with eight months/11,000 miles on the clock. I don't swing wrenches on this car, and I have no idea how long it languished on the dealer's lot before my beloved company adopted it for use as a $26,000 placard to put an "I'm greener than you" sticker on, so I really couldn’t do anything about it. The car never sat idle for more than 3 days. TIFWIW.

In addition to the use of a company car I currently own six starter motors (2 each: car, motorcycle, lawn tractor) and only 1 butt---so, I have to rely on a 'battery tender' to keep from being a frequent ‘battery buyer’.
Do not confuse battery tender with trickle charger!!
They're not overly expensive, unless you fall for the marketing hype, nor are they hard to use. I've used them for up to 6 years on the aforementioned vehicles, without issues. Several of these sit idle for months at a time.
If you only own the one vehicle, or you do not normally park your car for weeks at a time, then as stated above don’t worry about it. You really can't do anything about it anyway, unless you want to lose all of your vehicle's volatile memory data.
Like I said.
Yer call.

Good Luck!
Enjoy the trip!

 

An 80-mile drive to the airport "should" (there's that word again! ) leave your 12-v battery fully charged when you arrive at the airport.
You should thence be OK after a 2-week slumber, or Priuses by the hundreds would be parked in dealership lots awaiting new batteries.

Enjoy your trip and don't worry about it!

 

As he said it should start, but if it doesn't the problem will be the 12V battery. It can be jumped, there is a jump start connection under the hood. Directions in the owner's manual starting on page 543.

 

80 miles down a country road? Ok, ok. Bottom line: you should be ok, sitting 2 weeks.

Just for insurance, put a set of jumper cables in the trunk. Then if you're stuck, and there's anyone with a vehicle around, you should be able to get out of there. I would suspect there's some sort of jump start service at the airport, it would be a very common occurence.

Or consider a portable jump start source:

Clore Automotive

Or a solar charger:

Blue Planet Solar Panel, 1.8W | Canadian Tire

I've seen the latter in windshields of cars on dealers lots.

 

Or, put a 12V DeWalt battery fully charged in the trunk...that is all you need to jump-start a Prius.

 

that works! i've even used a higher voltage dewalt that was drained yet still had plenty of power to jump the car... i'll admit it was around 13 to 14v... but 3 seconds hooked up to the car did no damage (that was over 2 years ago)

it was a 16v battery... (dead)

 

Most paid airport parking lots have portable chargers available on-site for cars with dead batteries. I believe your car will be fine after two weeks, but you may want to be clear on the charging procedure for the Gen 3 Prius ... just in case.

 

I left my Prius at the airport for 15 days while traveling last month. The car started right up when I got back, no loss of bars on the traction battery after 15 days.

I think this issue is much ado about nothing. Probably someone left their door ajar once and drained the battery, and now everyone is panic-y about this non-issue.

 

My 2010 Prius sat for 60 days after I had knee replacement surgery, it started right up no problems at all.

 

I have parked my car for weeks at a time in Michigan winters (because I didn't want to go out in the cold) and nothing happened. Even now, I use it only once a week on most weeks unless I am going out of town.

 

Good news! I just returned from a 2 week visit with my daughter & her family. When I got home, my 2010 Prius started up right away. It had been parked on the street in 100+ degree weather.