Diagsheet

2018 Honda Accord · symptom sheet

Battery dies or the car will not start

  • 42owner reports
  • 28,000median miles
  • 1involved a crash

Newest report Sep 1, 2026 · checked Oct 2, 2026

296 of the 1,883 complaints on this car are about the electrical system. 42 of those describe dead battery.

1 recall on this systemcovering the 2018 model year
1 crashin 42 reports
1 person hurtin these reports

Tick what matches of 42 reports

10
3
15
25
3
3

Dead battery on other Accord years

Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026.

What this problem usually is

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.

Read the full explainer · Which cars report it most

What got replaced

Owners who name the part that was replaced mention the battery (40 reports) and the alternator (3 reports).

Recalls and investigations

One recall on the electrical system covers the 2018 model year. A recall on the same system isn't always the same failure, so read the defect text.

20V-771Dec 10, 2020
Electrical System:Body Control Module:Software

A software error may cause intermittent or continuous disruptions in communication between the Body Control Module (BCM) and other components.

Risk, remedy and owner complaints on recall 20V-771

All 6 recalls on the 2018 Honda Accord, with the owner complaints on each recalled system

NHTSA investigations into the electrical system on the Accord

EA09-001opened Jan 5, 2009
Electrical · model years 2003

Ignition shift interlock. Closed oct 14, 2010, led to recall 10V-364.

RQ08-006opened Sep 8, 2008
Electrical · model years 2002 to 2003

Ignition park-shift interlock. Closed jan 5, 2009, led to recall 10V-364.

PE05-002opened Jan 13, 2005
Electrical · model years 1999 to 2002

Ignition-park interlock. Closed feb 2, 2005, led to recall 05V-025.

DP04-006opened Oct 8, 2004
Electrical · model years 1999 to 2001

Ignition-park interlock. Closed jan 13, 2005.

EA03-017opened Sep 9, 2003
Electrical · model years 1998 to 2001

Ignition-park interlock. Closed dec 17, 2003, led to recall 03V-423.

None of these investigations covers the 2018 model year.

When it happens

The middle half of failures fell between 8,085 and 45,000 miles, from the 13 reports that gave a mileage.

Complaints by the year NHTSA received them: 2018: 3, 2019: 2, 2020: 4, 2021: 9, 2022: 5, 2023: 3, 2024: 3, 2025: 7, 2026: 63'182'194'209'215'223'233'247'256'26

Is this a known problem?

The manufacturer has sent NHTSA 3 service bulletins or notices for the 2018 Honda Accord that deal with this problem. Newest first.

Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.

What owners wrote

“2 weeks ago. All of my warnings and lights for my car came on. We undid my battery, charged it and did it again. The lights went away and about 3 days ago they came back on. Now my car is overheating and the system is reading wrong.”

Filed Aug 14, 2026

“Door locks alternate not locking/unlocking with either the door buttons or key fob buttons (battery is good). Available for inspection. Vehicle has not been inspected. No warnings prior. This has happened on and off for about 2 years and now seems like it’s 24/7 a thing with multiple doors at a time now.”

Filed Nov 9, 2025

“While accelerating car jerks at times. At time car will go in limp mode I’ll have to safely try to get to side of road turn car off. Restart and continue driving. I’ve changed spark plugs, coil packs, turbo, fuel injectors, fuel pump and battery. I continue to put money into my car and nothing helps.”

Filed Oct 30, 2025

“This is about the 5th time this has happened to the car. All warning lights appeared spontaneously while driving. The lights would turn off if the car was turned off for a long period of time or is we disconnected battery for a long period of time. We have tried to research the problem and no one seems to know what the cause or permanent fix is.”

Filed Jun 11, 2025

Should you keep driving it?

This page can't tell you that. 1 of 42 reports involved a crash and 1 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.

Guide Paid for this repair before a recall covered it? How recall reimbursement works

Other problems on this car