2014 Chevrolet Sonic electrical system problems

“A new EverStart Maxx lead-acid battery (Group Size H5/47, 12V, 650 CCA) was bought at Walmart on 07/14/2026 and installed the same day in a 2014 Chevrolet Sonic. It was installed correctly: correct polarity, both terminals tight and free of corrosion, hold-down secured. The car ran normally for about eight weeks, with no warning lights or electrical symptoms. On 09/10/2026 at about 12:00 p.m., the car caught fire while parked. It had not been driven or started since about 5:00 p.m. the day before (about 19 hours), so the engine and charging system were off. The fire appears to have started at the battery. It stayed in the engine compartment but melted the underhood fuse box and the engine wiring harness. The local volunteer fire department responded, and a police report was filed. No one was hurt, but a battery fire in a parked, unattended car could easily spread to a home, garage, or other vehicles. The car had an earlier front-end repair after hitting a deer. It had been driven for more than a year since that repair with no electrical problems. The vehicle and the battery remains have been left in place and are available for inspection. The retailer and…”

“Vehicle keeps throwing error code P2138 there is a current known issue that GM is aware of see notice 070604019F. Water gets in the electrical connections of sensors and is an issue as it causes check engine light and can decrease power of the acceleration of the vehicle which is a safety hazard. My vehicle has been with the dealer now for a third time for same issue. They’ve had it for 3 weeks and 2 days total. Still an issue.”

“The car is completely shutting off all power while driving. The doors will start locking and unlocking and the no power at all. I have taken it to multiple mechanic and it reads no codes. It has done this to me on the Highway. car was completely stopped and i was very lucky a car did not hit me. it usually will start again after shutting down”

“My auto started out with a Check Engine Light. I noticed the engine smelled of overheated radiator and coolant smell. Parts were replaced for fix (Hose)...but check engine light continued as well as the overheated coolant smell. The auto was placed for checking on machine for codes for check engine light, but none of codes made sense to Mechanic. Told to bring back for further testing/looks. Brought back several times. No idea what was wrong but last time I was told I needed to leave for extended testing and test driving as gears were not shifting in D struggled engine for me, no acceleration and RPMs raced at times. (Dangerous and unpredictable on highway and in town). Now I turned in for testing to Chev Mechanic, and now am facing a part that was replaced in control of electrical (over $500) and after they repaired that and tested I am told that I have a TOTAL TRANSMISSION REPAIR over $5200 - for a 2014 auto!!! It was in with dealership mechanics a total of 6-7 times. I was informed the electrical controls were confusing the engine reactions. Auto a dealers for $5200 + $500 repairs now 20230702 and problems seen & looked at since March for smell of…”

“Car has problems starting after gas is put in it u have to step on gas peddle several times to get it to start car does not have working backup camera in it or even a working radio in it car has a check engine light on I took it to were I ought it twice they cleared codes out of car but codes come back on all the time I would like to exchange this vehicle if possible can u help me Manns Performance Vidalia Ga 30474 is were it was purchased 6/01/2023 this has been a issue since I got from dealership crack in window after having it two weeks even with windows cracked sitting in the yard”

“This car just dies on me randomly while driving at high or low speeds and is very dangerous, the dash lights go out sound stops working and you have to stop put it in park and turn car off and restart to get it started again. I have had it to service department and there are no codes generated, this started back in 6/2021 and continues to be a problem”