Diagsheet

Symptom explainer · every vehicle on the site

Battery dies or the car will not start

Most reported: 2017 Subaru Outback with 336 reports. Across the 571 model years on this site with at least five, owners filed 13,033.

  • 13,033owner reports
  • 571model years affected
  • 36,175median miles
  • 135involved a crash
  • 279involved a fire

These owners walk out to a car that's dead. Some find it drained after sitting only a day or two, some need a jump start every week, and some have had the battery replaced more than once without the problem going away. A good number describe the dealer testing the battery, calling it fine, and sending them home.

Which cars report it most · By model · When it happens · What it is and what to do

The 25 vehicles with the most reports

Each row is one model year. The bar is its count of dead battery reports; the share is how much of that car's complaint file this problem takes up. Bigger sellers draw more reports, so read the share alongside the count. Red dots mark crashes and fires in these reports; amber marks a recall on the same system.

  1. 1
    2017 Subaru Outback2 crashes1 fire
    33637% of its complaints30k mi
  2. 2
    28327% of its complaints14k mi
  3. 3
    23837% of its complaints40k mi
  4. 4
    21023% of its complaints8k mi
  5. 5
    17021% of its complaints19k mi
  6. 6
    2015 Chrysler 2004 crashes1 firerecall
    1598% of its complaints66k mi
  7. 7
    2016 Honda Pilot1 crash1 firerecall
    1599% of its complaints50k mi
  8. 8
    1428% of its complaints20k mi
  9. 9
    2014 Honda Accord1 crash3 firesrecall
    14116% of its complaints53k mi
  10. 10
    2019 Subaru Ascent1 firerecall
    13731% of its complaints12k mi
  11. 11
    12832% of its complaints20k mi
  12. 12
    2024 Jeep Wrangler2 firesrecall
    11716% of its complaints13k mi
  13. 13
    2015 Honda Accord1 firerecall
    11419% of its complaints52k mi
  14. 14
    2021 Jeep Wrangler3 crashes3 firesrecall
    11312% of its complaints32k mi
  15. 15
    2017 Chevrolet Volt2 crashes1 fire
    11116% of its complaints62k mi
  16. 16
    1087% of its complaints21k mi
  17. 17
    10715% of its complaints43k mi
  18. 18
    1067% of its complaints35k mi
  19. 19
    2018 Jeep Compass1 crash2 firesrecall
    10311% of its complaints36k mi
  20. 20
    2018 Chrysler Pacifica2 crashesrecall
    9511% of its complaints26k mi
  21. 21
    2023 Hyundai Ioniq 52 crashes1 firerecall
    9525% of its complaints16k mi
  22. 22
    2022 Kia EV62 crashesrecall
    9334% of its complaints40k mi
  23. 23
    9131% of its complaints8k mi
  24. 24
    2020 Subaru Ascent1 firerecall
    9028% of its complaints7k mi
  25. 25
    9019% of its complaints30k mi

Where it dominates the complaint file

Model years with at least 25 reports, ranked by the share of all their complaints that describe dead battery. That takes most of the sales-volume effect out (small sellers still swing more).

  1. 1
    2897% of its complaintsfew mileages
  2. 2
    6149% of its complaintsfew mileages
  3. 3
    2019 Jaguar I-PACE2 firesrecall
    6645% of its complaints26k mi
  4. 4
    23837% of its complaints40k mi
  5. 5
    2017 Subaru Outback2 crashes1 fire
    33637% of its complaints30k mi
  6. 6
    2022 Kia EV62 crashesrecall
    9334% of its complaints40k mi
  7. 7
    12832% of its complaints20k mi
  8. 8
    4331% of its complaints11k mi
  9. 9
    2019 Subaru Ascent1 firerecall
    13731% of its complaints12k mi
  10. 10
    9131% of its complaints8k mi

By model, every year together

The 12 models with the most reports. Each chip is a model year; the darker chip is its worst year.

When it happens

5,510 of the 13,033 reports state a mileage. The middle half fall between 14,500 and 61,900 miles; the median is 36,175. Each column is a 20,000-mile band.

Battery Drain Problems reports by mileage at failure: 0: 1720, 20k: 1217, 40k: 1073, 60k: 676, 80k: 394, 100k: 199, 120k: 117, 140k: 61, 160k: 22, 180k: 12, 200k+: 191,72001,21720k1,07340k67660k39480k199100k117120k61140k22160k12180k19200k+

Reports by model year

Every report of dead battery, grouped by the model year of the car. 135 involved a crash and 279 a fire. 98 people were hurt.

Battery Drain Problems reports by model year: 2014: 1233, 2015: 1230, 2016: 1247, 2017: 1628, 2018: 1351, 2019: 1632, 2020: 1076, 2021: 964, 2022: 975, 2023: 732, 2024: 511, 2025: 386, 2026: 681,233'141,230'151,247'161,628'171,351'181,632'191,076'20964'21975'22732'23511'24386'2568'26

What owners describe

Share of the 13,033 reports that use each phrase. One report can use several.

warning lights or messages54%
battery replaced more than once32%
dead after sitting a day or two24%
the dealer found a drain18%
needed a jump start17%
the dealer found nothing11%

What got replaced

Reports that name the part, across every vehicle.

the battery11,674
the module617
the alternator560
the starter420

What it is and what to do

What is usually involved

Three parts share the job. The Car Care Council describes the battery storing the energy, the starter turning that energy into the force that cranks the engine, and the alternator producing current to replace what the starter used and to run the electrical loads once the engine is going. A fault in any of them can end with a car that won't start. The other common cause in these reports is a drain: something that keeps drawing power after the car is locked, so a healthy battery runs flat overnight. Owners here name the battery, alternator, starter and various electronic modules.

What a shop checks first

A battery test comes first, and the council suggests testing every fall and considering replacement once a battery is three years old or more. If the battery tests fine and still dies, ask whether they checked how much current the car draws while it's parked and locked, since a module that never goes to sleep won't show up on a battery test. Warning signs the council lists for this system include dimming headlights and interior lights, a battery or check engine light, and accessories that stop working.

When to stop driving

A car that won't start isn't dangerous where it sits. The risk is a charging fault that lets the car start but then runs the battery down while you drive, which can end with the car shutting down on the road. If the battery light comes on while driving, head somewhere safe and get it looked at before you rely on the car again. Hybrids and EVs have a separate 12-volt battery that runs the lights and electronics, and NHTSA notes it's very different from the high-voltage pack.

What to tell the mechanic

Say how long the car sat before it died, whether it happens in all weather, and what you've added (dash cams, chargers and remote starters all draw power). List every battery and alternator replacement with dates. If a warning or message appeared before it went dead, write down what it said.

Recalls, bulletins and warranty

When a drain turns out to be common on one model, the fix may come as a dealer bulletin. Automakers must file those bulletins with NHTSA, and you can read them by searching your year, make and model at NHTSA's recall page. The FTC's advice on warranty claims applies here: keep records of every repair and visit, since the manufacturer can ask for them and a claim without them may be denied.

Counts are unique NHTSA complaints on the 1,040 vehicle model years that have a page here, grouped by the word patterns described on the method page. A vehicle needs five matching reports to be counted in this ranking. Checked Sep 27, 2026. All problem explainers.