3 times over the last month, while I was driving my vehicle, the car suddenly lost power while I was driving on the highway. All the dashboard lights flashed on, check engine light and warning lights illuminated. The vehicle lost power, the accelerator was not working, and I was just barely able to pull the car over to the side of the road. Car turned off and was able to turn back on, now with illuminated check engine light and check hybrid system warning light illuminated. This is a big safety issue as the car is losing power in the middle of the road while my foot is on the accelerator. The first time this happened I was able to pull a couple codes from the code reader. Codes were: u0001 & u0100 the second and 3rd time this happened there were no codes coming up on the code reader.
2009 Toyota Highlander electrical problems
20 complaints (15% of all complaints for this car). Typical mileage when it fails: 72,900.
- owner complaints
- 20
- of this car's complaints
- 15%
- typical mileage
- 72,900
- crashes
- 0
- recalls
- 0
Which part fails
- 12v/24v/48v battery1
At what mileage
Complaints by mileage at the time of the problem.
Toyota Highlander electrical problems in other years
Specific symptoms reported on the 2009 Toyota Highlander electrical
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
What 2009 Toyota Highlander owners say
Most recent owner complaints, unedited.
Lock actuators mal-function when using the remote or when using the power locks. Unable to lock doors except manually with key or by hand. At times, certain locks will work and seem impacted by weather conditions, I.e. Humidity or rainy day vs. Fair weather day. This causes the owner to believe the doors are locked when they are not and the inconvenience they are unlocked when leaving your car parked in a public lot.
2009 toyota highlander limited door actuators have all broke, been replaced and broke again. Some are being replaced for the 3rd time since I owed the vehicle (making it the 4th lock on the car). At the moment only 1 door lock works and I have to climb across to open the other doors. I am extremely concerned that they will all break and I will not be able to get my daughter out of the car. I started contacting toyota in 2013 when they all started breaking. I also can not open the car with the key. 8/2012- drivers lock and actuator replaced and window 6/2013- right rear door actuator replaced 7/2013- passenger door actuator replaced 3/2014- left rear door actuator replaced 4/2014- drivers lock actuator replaced (again) 5/2014- right rear door actuator replaced (again) 2015- left rear actuator broke again this time my extended warranty is up and they want 600 to fix. 2016- passenger actuator broke 9/2018- drivers actuator broke for the 3rd time. I am left with leaving the car unlocked and hoping no one goes in or climb across my vehicle. I have contacted toyota numerous times to try and get them to help and they havent done anything but tell me I'm now out warranty even though I contacted them regarding the issues before my extended warranty was up.
My vehicle has an issue with the door locks which is a safety concern, the power door lock actuators have repeatedly failed on my vehicle. Each of the four door lock actuators have been replaced and several multiple times. The most recent was a drivers (left) side rear which was replaced in march 2014 and failed again. This makes the 6th or 7th time an actuator has failed on my vehicle. The cost to replace these is approximately $600. However my biggest concern is that the vehicle is unlocked when I believe it is locked. This is a worry both when transporting young children (who can open the door as child safety locks are inoperative) and potential unauthorized access or theft of the vehicle. I opened a case with toyota #1701210527. Toyota refuse to continue to assist with this or determine why my vehicle repeatedly has door lock actuators fail.
Rear door motor lift not working
Liftgate will not close or open when automatic button is pushed either on the dash or the button on the liftgate itself. Stays open and have to force the liftgate down manually. At times liftgate will open by itself while stationary or vehicle is moving. Closing or opening the liftgate automatically problem has be ongoing for about 6 months. Brought to dealership and they could not repair, but I could take to body shop for repair. Currently a service bulletin has been issued, but should be a safety recall.
$7155 quote to replace 2 electrical harnesses. Reason: "warning: SRS airbag check. Take vehicle to dealer". The junction box is hidden behind the driver side front panel. The pins in the junction box belonging to the airbag wiring harness (part # 82141-48r51) that runs underneath the dashboard were fried due to electrical short (unexplained). Because the junction box also brings the rear wiring harness (part # 82162-48d40 ) to tail, headliner, and back of the vehicle, this must be replaced as well. I fear that there is a major flaw in the electrical system / SRS airbags of this vehicle and the vehicle electrical system has experienced premature failure.
Lift gate and power door motor broke. The door stocked and could not be opened or locked. I was lucky that my toddler was not around. I am horrified what would happened if his hand stock in it and the door could not be open. We took it to molle toyota. They told me that beside the lift gate and motor the whole rear door and hinge has to be replace. They said that if I don't replace the doors I will have same problem few months later. They said that toyota modified the new rear door that they are aware that the door in my vehicle causing problems. They refused to pay for the door because it's outside warranty. The cost of motor and lift gate repair is $1500 the cost with new door is $3500. I don't understand why toyota does not pay for door that they are aware that are defective and needed to be modified. I also think that there should be a recall on this part because someone can get injured.
Recent trouble with electrical rear door hatch closing properly. My ongoing problem is at least 4+ years that nobody hears me. It's electrical, auto lock doors, AC or heat shuts off and on ad it wants, totally went to hi heat when I was driving, buttons do whatever they want to do no matter what is turned off or on.
This vehicle has an electrical problem, most mechanic shops I took it were not able to find out the nature of the problem. I've changed the battery twice and still experiencing the same problem. At the high way I noticed the that the temperature of the engine gets high, which obliged to drive in a much lower speed with the flashers on which always increases the traffic safety risks.
Questions about the 2009 Toyota Highlander electrical
Does the 2009 Toyota Highlander have electrical problems?
Owners have filed 20 complaints about the electrical of the 2009 Toyota Highlander, 15% of all its complaints.
At what mileage do 2009 Toyota Highlander electrical problems start?
The typical (median) mileage in owner complaints is 72,900 miles.
Was there a recall on the 2009 Toyota Highlander electrical?
There is no recall for this problem on this model year.
What year does the Toyota Highlander have the most electrical problems?
The Toyota Highlander model years with the most electrical complaints are 2019 (56 complaints), 2010 (53 complaints) and 2015 (52 complaints).
Other 2009 Toyota Highlander problems
Engine 28Brakes 26Body 15Acceleration 14Steering 11Airbags 8Transmission 7Visibility 7Tires 6Suspension 5Driver assistance 4Seats 3Wheels 3Fuel system 2Lights 2Locks 2Seat belts 2
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