2020 Toyota Camry: battery drain or dead battery

Filed Oct 24, 2025 · Electrical, Engine · 18,000 miles · MA

The contact owns a 2020 Toyota Camry. The contact stated that while starting the vehicle, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where it was not diagnosed. The contact was informed that the engine oil was changed, and the oil warning light was reset. The mechanic informed the contact that the wiring harness had been damaged due to rodent activity and needed to be replaced. Additionally, the contact reported an issue with the battery draining. The vehicle was diagnosed with a battery failure, and the battery was replaced several times; however, the check engine warning light was occasionally illuminated. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 18,000. The VIN was not available.

Filed Aug 29, 2024 · Electrical · CA

Consistent issues regarding battery draining when car sits over 24 hours. Dealer can not find or resolve the problem.

Filed Feb 2, 2024 · Airbags, Driver assistance · IN

There is a current recall on my 2020 camry. I was notified by email in December 2023. It is for the passenger side air bag. I do not feel safe driving the car since being made aware of the recall. The Toyota dealership I go to has said there is nothing they can do as there is no remedy for this recall. I also have had multiple issues over the years with the sensors and battery. I bought the car brand new, with 2 miles I rolled off the lot. A few days after purchasing it my battery died. My battery died multiple times within the first few months, sensors did not work, screen display was off, Toyota said they had to reset the computer software. There was an issue draining the battery. Fast forward to November 2023, I had to buy a new battery. Even though I have had issues with the battery since purchasing the brand new car, I had to pay for the battery out of pocket. Toyota said I just barely missed the warranty. Now once again I have issues with the parking sensors not working and the rear camera display not showing. I get the notification RCD unavailable. Even though my camera is clean and was checked at the dealership. I feel as if I have bought a bad car from the start. And now I do not feel safe driving it as well as being completely frustrated with it. What can I do?

Filed Nov 28, 2023 · Electrical · PA

The vehicle has a parasitic electrical drain that has lead to my wife being stranded twice.

Filed Dec 6, 2022 · Electrical · CO

Two instances of parking the 2020 Toyota Camry and electrical system going "dead" within 24-36 hours. Battery drained/unable to enter via FOB/unable to start vehicle. Car maintenance and inspection occurred in November 2, 2022. Testing of battery by Toyota Service Center confirmed battery was not issue and worked as normal. Battery less than two years old. Overall safety was not at risk, as car was parked in garage during both instances (March 2022/November 2022). Problem was not able to be reproduced. No warnings were given prior to either event by warning lamps/messages.

Filed Dec 27, 2021 · Electrical, Engine · MO

Dead battery at 21000 miles. Car is less than 2 years old and didn't drive it for 36 hours and the battery completely drained. Even after jump start electronic dash wouldn't function properly.

Filed Apr 7, 2021 · Electrical · 2,000 miles · NH

Tl* the contact owns a 2020 toyota camry. The contact stated the battery became inoperable. The vehicle was towed to toyota of nashua (10 marmon dr, nashua, nh 03060, (603) 689-1500) to be diagnosed. The contact was informed that the vehicle was not driven enough which caused the battery drainage. The contact was informed to use a trickle charger between use of the vehicle to keep the battery fully charged always. The vehicle was repaired. The manufacturer was notified of the issue. The failure mileage was 2,000.

Filed Mar 16, 2021 · Electrical, Engine · VA

Twice recently 2020 toyota camry with less than 8,000 miles on it would not start after being parked in a garage. In both cases, we charged the battery and car started right away. No doors were left open, no lights on, etc. What is causing the battery to drain after a day or two not being driven? My older toyota with 150,000 is more reliable, sadly. Have read about a battery drain issue with this car, but toyota customer service says my VIN number is not part of the recall. Seems like I am not the only one with this problem. Taking to dealership this week to see if problem can be identified.

Filed Mar 7, 2021 · Electrical · 2,678 miles · CA

Problems with the dead battery ' draining. I bought the car in july 2020. It has been 2 times I've had to call roadside assistance because my car was completely dead. First time, they said it was because the car was parked at the dealership with no use. Second time, they said it was because my car has low miles since I've bought it. I wanted to buy a new car to not go through "issues" and I should not be forced to drive my car more than what I need to, nor I should have to buy a trickle charger the tech service guy recommended me to buy and follow his instructions on having to drive at least 30 minutes twice a week, when I already drive it to work everyday. Now I am affraid to drive my car, worried that it won't work at any given moment. What should you expect when they tell you "I cannot garantee this won't happend again in 6 or 7 months"?. Very disappointed. I then, started doing resaerch on my own online and found out that there are a lot of people experiencing the same problem.

Filed Mar 3, 2021 · Electrical · 1,224 miles · MA

Tl* the contact leased a 2020 toyota camry. The contact stated that the vehicle would not start sporadically and required a jump start. The contact took the vehicle to boch toyota (277 providence hwy, norwood, ma 02062) where it was diagnosed as a parasitic drain in the battery from the computer demand overload. The dealer informed the contact that the remedy options were to drive the vehicle for half an hour twice a week, replace the battery, or sign a new 36 month lease for a new vehicle. The contact stated she could not sign a new 36 month lease and should not be penalized for the manufacturer defect failure of the vehicle. The failure recurred. The manufacturer was not notified of the failure. The failure mileage was 1,224.

Filed Mar 2, 2021 · Engine · 878 miles · MA

I leased this vehicle in july 2020 for 24 months, the battery is not dependable; frequently, at random times, the car won't start.. I have had to call for assistance 6 times. Toyota explained that the battery has a defect called parasitic drain because of overload from 40 computers and only solution is to drive at least 1/2 hour twice a week. I am 88 years old with macula degeneration and consider this an unsafe requirement. Toyota suggested buying a new battery but if, as stated by the mechanic, the battery is getting continuously drained by overload, that makes no sense, I asked if they could block off some of the drainage (like bluetooth) they said not this model.I complained that I wasn't informed of this defect before buying and they explained it was in the manuel which I didn't receive until I signed the agreement.

Filed Nov 23, 2020 · Electrical · 2,800 miles · RI

Battery died my new 2020 toyota camry has 2800 mi's. Triple a said it was a defective battery and couldn't be repaired. . A graage said its a rampant problem with 2020 toyotas on line sites sites say its a deep electrical problem. I had it towed to dealer who said it was the sos button on ceiling malfunctioning they said the battery wasn't damaged. There is a lot on the web saying this is a major electrical problem with 2020 toyota's? I will pick up and keep paperwork in case you need it..