Help! Engine management system problem and heated seat system problem warning

Djmj1111 · Apr 9, 2024

Hello,
We have a 2019 odyssey elite 68k miles. As I was driving today it stalled on me at a stoplight, entertainment shut off for a quick second, and it went into park mode. Was able to switch it back to drive quickly, but I got two warning messages—engine management system problem and heated seats system problem. I was not using the heated seats at the time. Also, when the car is turned on without the engine we get a low battery message. I assumed it was a battery issue (it did just get a new battery 7 mo the ago), so I went and got it tested. The battery and alternator all tested out completely fine. I am now quite anxious about the messages and what the issue might be.

please help!!
TY!

bandit400 · Apr 10, 2024

Sounds very similar to my vehicle when the alternator failed. You can get a digital voltmeter that plugs into the cigarette lighter for around $10 on Amazon. This would make troubleshooting much easier.

WiiMaster · Apr 10, 2024

Test results cannot always be trusted either.

DJVAN · Apr 10, 2024

@Djmj1111
Can you stop by an auto parts house and have them check for an error code and come back here and post it?

Djmj1111 · Apr 11, 2024

Apparently the fix was tightening the battery terminals. Hopefully it was and stays that simple! If not, I’ll tell them to look into the alternator again even tho it is tested fine. Thanks!

tessa · Nov 26, 2024

We had same issue, same two light warnings (first the heated seat and then the engine system warning), and your post helped- I asked them to check the battery terminal and one was loose. Lights off now!

Help! Engine management system problem and heated seat system problem warning

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