COMPONENT SPOTLIGHT

Toyota Corolla electrical problems

878 distinct owner reports with an electrical-system component in this snapshot.

Includes the electrical-system component and its detailed subcategories. Related recalls and investigations must also name this component; they are not linked by narrative keyword alone.

52 crash reports78 fire reports24 injury reports

Reports by model year

Recall and investigation columns show each year’s full history. A report naming several years can appear in more than one row.

When problems were reported

Mileage at the reported incident

539 reports with mileage · 339 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What owners actually said

878 reports
2023 model year · Mileage unknown · Apr 15, 2024
Electrical System

See attached document for complaint

NHTSA ODI #11583039

2020 model year · Mileage unknown · Apr 13, 2024
Electrical SystemEngine

Dashboard stated engine maintenance required- visit your dealer and it turned out to be a bypass coolant valve malfunction per Toyota mechanic specialists.

NHTSA ODI #11582798

2018 model year · Mileage unknown · Mar 13, 2024
Electrical SystemEngine

I was driving down the highway and I heard a tapping noise thought it might have been a piece of trim loose on the car so I pulled over and stopped. Immediately the engine died would not restart. I looked under the hood and the radiator cap had blown off and all of the coolant was gone The engine had overheated when I put compre…

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I was driving down the highway and I heard a tapping noise thought it might have been a piece of trim loose on the car so I pulled over and stopped. Immediately the engine died would not restart. I looked under the hood and the radiator cap had blown off and all of the coolant was gone The engine had overheated when I put compression test was done there was water shooting out of the valve cover. It was diagnosed as a blown head gasket The car never gave any warning lights or the thermostat never showed any temperature problem at all. I was sitting on the side of the highway for 12 hours trying to figure out what to do with the car because I didn't have money for a tow truck. Fortunately nothing terribly bad happened as a result However had I not heard the trim loose and pulled over and the car had died in the highway it could have been way worse.

NHTSA ODI #11577085

2016 model year · Mileage unknown · Mar 10, 2024
Electrical SystemEngineSteeringCrashInjury

I have been driving my car since 2016, however since Nov 24, 2023. Incidents that alarm me have happen. I have filed a police report but don't have the funds to get vehicle swept. All of these events occur while I am driving. Passenger windows goes up in and down a lot. Static in my speakers. Steering wheels lock. somethings dra…

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I have been driving my car since 2016, however since Nov 24, 2023. Incidents that alarm me have happen. I have filed a police report but don't have the funds to get vehicle swept. All of these events occur while I am driving. Passenger windows goes up in and down a lot. Static in my speakers. Steering wheels lock. somethings draining my battery. though I have ensured nothings on or there isn't any short fuses. Doors unlock. Door beeps though someone has had access. Trunk pops open. I am reaching out to NHTSA because my safety is at risk. Is any other Corolla owners reporting this. Please assist me.

NHTSA ODI #11576490

2024 model year · Mileage unknown · Feb 26, 2024
Electrical System

Experiencing a high-pitched whining/ringing sound from the air conditioning system. It is highly distracting and irritating, and basically prevents the use of some fan speed settings for extended durations due to the pain it causes. Many other Corolla owners are experiencing the same issue and Toyota refuses to take action in ev…

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Experiencing a high-pitched whining/ringing sound from the air conditioning system. It is highly distracting and irritating, and basically prevents the use of some fan speed settings for extended durations due to the pain it causes. Many other Corolla owners are experiencing the same issue and Toyota refuses to take action in every case, saying the problem is "characteristic of the vehicle" or something to that effect. Issue is well-documented in this forum thread among other places. [XXX] See in particular post [XXX] for objective evidence of the sound and a probable root cause analysis. A particular chip resonates at about 15.7 kHz. I encourage you to put that frequency into an online tone generator to get an idea of the problem, although for some people, especially those who are older, sounds this high are inaudible like a dog whistle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI #11574009

2020 model year · Mileage unknown · Feb 19, 2024
Electrical SystemForward Collision AvoidanceLane Departure

Electrical issue on vehicle says that vehicles safety features are unavailable and all the light indications on the dash are lit up. It was taken to the dealership several times but the issue still hasn’t been resolved.

NHTSA ODI #11572833

2009 model year · Mileage unknown · Feb 7, 2024
Electrical System

I purchased my car in March 2023. From the first week, it wouldn't start sometimes. Id wait 5 minutes, then it would start fine. I thought it was when it got wet, at first. I also had a certain part replaced air flow compressor, possibly was called?, thinking this would fix it. It did not. In fact, the problem seemed to be happe…

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I purchased my car in March 2023. From the first week, it wouldn't start sometimes. Id wait 5 minutes, then it would start fine. I thought it was when it got wet, at first. I also had a certain part replaced air flow compressor, possibly was called?, thinking this would fix it. It did not. In fact, the problem seemed to be happening more and more but, always, if I waited 5 to 10 minutes, sometimes messed around under the hood, it would start. This was not very comforting however, when it would stall at a light and not start right back up. I took it to AutoZone and was run on the diagnostics machine. Was told it needed new spark plugs and ignition coil packs. Which I got and replaced. Still happening. I took back to AutoZone, had it run again on diagnostic. This time it said battery. So I had a new battery put in. Still happening. All along, might I add, my fuses will blow randomly, my headlights And taillights will blow for no reason. One taillightooks like it melted through the plastic before it decided to blow. I e replaced some fuses, only to have blown again. I also have replaced the light bulb in taillight, only to have blown twice more. This is very dangerous, especially at a traffic light or, late at night if I need to go somewhere or leave somewhere And it won't start. I've been stuck in the middle of the road, on the wring sidevif the riad, in the midfle if a snowstorm, with it not starting for me. Also, it was gett5really cold without heat and, I was nearly hit several times as i was also at the bottom of a steep hill when my car decided to stop sliding backwards and stall on me and would not restart. That was the most fearful I have been with this issue and with good reason! I now see several others having similar issues with their same exact car. Why isn't Toyota addressing this?

NHTSA ODI #11570463

2021 model year · Mileage unknown · Jan 30, 2024
Electrical SystemPower TrainSeat Belts

Vehicle has numerous electrical/mechanical issues that seem to stem from an autonomous learning remote sensor. The problems include, but are not limited to 1. Seatbelt sticking on driver’s side, problem resolves itself, possibly after someone has had a good chuckle on satellite watching the driver struggle to disengage the safel…

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Vehicle has numerous electrical/mechanical issues that seem to stem from an autonomous learning remote sensor. The problems include, but are not limited to 1. Seatbelt sticking on driver’s side, problem resolves itself, possibly after someone has had a good chuckle on satellite watching the driver struggle to disengage the safely belt, 2. Trunk remotely popped at speeds ranging from 0 (park) to 70mph on highway, 3. Ignition light on and off, usually correctible by disengaging and reengaging battery lead, 4. Car shutoff and burglar alarm engaged while in park, again , correctible by disengaging and engaging battery lead, 5. Car gas gauge reading false on the light side ( less than E), then after disengaging and engaging battery lead, reverts back to 1/4 tank, 6. Clock time changed, presumably after vehicle shutoff and restarted in the middle of the night. Clock reset via auto computer, etc. All incidents are usually corrected by disengaging and engaging the battery lead, after a brief pause to reset the vehicle’s ECU.

NHTSA ODI #11568809

2014 model year · Mileage unknown · Jan 21, 2024
Air BagsElectrical SystemSeat BeltsCrashInjury

Air bags did not go off during the crash and the seats belt tensioner didn't lock up the seat belt resulting in injury to my self. Radio keeps rebooting

NHTSA ODI #11566833

2020 model year · Mileage unknown · Jan 17, 2024
Electrical SystemEngineUnknown Or Other

Around 40k miles I received an Engine Maintenance Required warning. After some research Engine Maintenance and Engine Service Required are two very different indicators. I received and P2681 code meaning the electrical coolant bypass valve had failed unfortunately one can’t tell if it’s stuck shut or open this could lead to one’…

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Around 40k miles I received an Engine Maintenance Required warning. After some research Engine Maintenance and Engine Service Required are two very different indicators. I received and P2681 code meaning the electrical coolant bypass valve had failed unfortunately one can’t tell if it’s stuck shut or open this could lead to one’s care over heating and or damaging one’s engine. After some research I’ve come to find out most 2020-2024 corollas have been having this issue tends to happen about 30-50k miles

NHTSA ODI #11566170

Related Official recalls

3

95V195001 · Electrical SYSTEM:12V/24V/48V Battery

Oct 11, 1995

THE BATTERY CAN HAVE A DEFECTIVE WELD INSIDE THE POSITIVE AND/OR NEGATIVE TERMINAL ALLOWING THE CONNECTION INSIDE THE TERMINAL TO SEPARATE.

Consequence & remedy

Consequence: THIS CONDITION CAN RESULT IN A NO-START CONDITION, OR A BATTERY EXPLOSION.

Remedy: DEALERS WILL REPLACE DEFECTIVE BATTERIES.

94V220000 · Electrical System:wiring

Nov 8, 1994

AN UNUSED HARNESS CONNECTOR FOR POWER WINDOWS, POWER DOOR LOCKS AND SUNROOF WAS IMPROPERLY ROUTED UNDER THE FLOOR CARPET IN THE LEFT KICK PANEL. IF THE VEHICLE IS OPERATED IN COLD WEATHER CONDITIONS WHERE LARGE AMOUNTS OF ROAD SALTS ARE USED, THE SALT WATER OR SNOW CARRIED INTO THE VEHICLE BY THE DRIVER'S SHOES CAN PENETRATE THE CARPET AND DRIP ONTO THE CONNECTOR RESULTING IN THE FORMATION OF A SALT BRIDGE BETWEEN THE TERMINALS.

Consequence & remedy

Consequence: THIS CAUSES AN ELECTRICAL SHORT INSIDE THE HARNESS, AND CAN RESULT IN A VEHICLE FIRE.

Remedy: DEALERS WILL REMOVE THE UNUSED HARNESS CONNECTOR.

83V133000 · Electrical System:alternator/generator/regulator

Dec 8, 1983

VOLTAGE REGULATOR WHICH CONTROLS THE AMOUNT OF FLOW IN THE ELECTRICAL SYSTEM BETWEEN THE BATTERY AND THE ALTERNATOR, MAY HAVE MANUFACTURING ERRORS IN AN INTEGRATED CIRCUIT. THE REGULATOR MAY OVERCHARGE THE BATTERY.

Consequence & remedy

Consequence: Not supplied

Remedy: DEALER WILL REPLACE THE VOLTAGE REGULATOR AT NO CHARGE.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

Related NHTSA investigations

1

PE87057 · Igniter Assembly Failure

Opened Sep 10, 1987 · Closed Mar 30, 1988

Status: closed (inferred from source dates) · Electrical System

SUMMARY: TOYOTA RECOVERED SOME FAILED IGNITION CONTROL MODULES FROM THEFIELD. INVESTIGATION SHOWED THAT A SOLDER JOINT IN THE POWER TRANSISTOROF THE MODULE WAS SUBJECT TO FAILURE. BECAUSE THE PART IS AN EMISSIONRELATED COMPONENT A VOLUNTARY EMISSIONS RECALL CAMPAIGN WAS CONDUCTED.THE PREDOMINANT MODE OF FAILURE IS AN INABILITY TO START THE ENGINE,ALTHOUGH A STALLED CONDITION CAN OCCUR WHILE THE ENGINE IS RUNNING.SINCE THE REPORTED OCCURENCE OF ACCIDENTS AND INJURIES IS SMALL, AND THEREPAIR IS BEING CONDUCTED UNDER THE EMISSIONS RECALL CAMPAIGN, THELIKLEHOOD OF FURTHER ACCIDENTS AND INJURIES IS REMOTE.===