2018 - All dash lights on
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Joined: Jan 2023
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2018 - All dash lights on
Hi all.
I have seen similar postings about this, but all solutions seem to lead back to replacing the battery - which I have done this evening without solving my problem. My issue start below...
After the intense cold in the Midwest about 1-1.5 weeks ago, all my dash sensors came on along with all warnings being shown. ACC, brake system, tires, hill assist, cannot turn into sport mode, traction control, and so on. Car was driving great since we bought it in August up until the day before the cold. Went out in the morning to turn it on given the cold to run for a bit and noticed all of the lights and warning messages. Chalked it up to the -20 to 0 degree weather that day or two. I ran a check engine light testing which gave me the code P2195 which I believe is a sensor - is this causing all sensors to go off then?. Cleared the code and all lights but about 10 miles later it all came back on.
Once I replaced the battery this evening, the lights were still on in the driveway. Once I took off, they disappeared. However, after about 20 minutes or so of driving around (went and returned the old battery....) all lights suddenly came back on. I can tell there are some minor issues with all of these lights on including the transmission feeling like its slipping going into 2nd gear, the AC was previously not working correctly (only hot air or freezing air - however, working still despite dash lights being back), and just feel an overall performance lost (even MPG dropped from about 26mpg to 22mpg).
Hoping to hear recommendations or suggestions before I turn to the dealership (really would prefer not to go there...).
Thank you in advance!
I have seen similar postings about this, but all solutions seem to lead back to replacing the battery - which I have done this evening without solving my problem. My issue start below...
After the intense cold in the Midwest about 1-1.5 weeks ago, all my dash sensors came on along with all warnings being shown. ACC, brake system, tires, hill assist, cannot turn into sport mode, traction control, and so on. Car was driving great since we bought it in August up until the day before the cold. Went out in the morning to turn it on given the cold to run for a bit and noticed all of the lights and warning messages. Chalked it up to the -20 to 0 degree weather that day or two. I ran a check engine light testing which gave me the code P2195 which I believe is a sensor - is this causing all sensors to go off then?. Cleared the code and all lights but about 10 miles later it all came back on.
Once I replaced the battery this evening, the lights were still on in the driveway. Once I took off, they disappeared. However, after about 20 minutes or so of driving around (went and returned the old battery....) all lights suddenly came back on. I can tell there are some minor issues with all of these lights on including the transmission feeling like its slipping going into 2nd gear, the AC was previously not working correctly (only hot air or freezing air - however, working still despite dash lights being back), and just feel an overall performance lost (even MPG dropped from about 26mpg to 22mpg).
Hoping to hear recommendations or suggestions before I turn to the dealership (really would prefer not to go there...).
Thank you in advance!
Honda-Tech Member
Joined: Dec 2003
Posts: 388
Likes: 5
From: south Ga, north Fla
Re: 2018 - All dash lights on
the P2195 is a MAF code. first thing to do is check the MAF sensor and make sure it doesn't have some sort of debris in it. And yes, little things like a fly wing can wreak all sorts of havoc on a MAF sensor. Also, if any sort of trouble code is detected, almost every single time, the system will shut off ALL of the driver aides, like cruise control, traction control, ACC and LKAS.
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