2015 Toyota Highlander: Electrical System complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 54 owner complaints for the 2015 Toyota Highlander that list the electrical system component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11760154 (filed 08/27/2026): “The a/c condenser was damaged due to impact of road debris. this caused loss of proper system operation. the cost to repair was $1100+. the debris entered thru the front grill, which has nothing in place to prevent debris from entering the engine compartment.…”
- NHTSA complaint ODI #11750990 (filed 07/17/2026): “The contact owns a 2015 toyota highlander. the contact stated that the power liftgate consistently failed halfway through while opening and closing the liftgate. the vehicle was not taken to the dealer. the vehicle was not diagnosed or repaired. the contact became aware of information online about t…”
- NHTSA complaint ODI #11741329 (filed 06/01/2026): “The contact owns a 2015 toyota highlander. the contact stated that while driving on several occasions at various speeds, the infotainment screen would go blank and the system would turn on inadvertently. this issue became more frequent, occurring approximately every 10 seconds. the power steering wa…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Moderate
Finding and splicing chewed wiring is doable with a multimeter and patience but can be time-consuming; harness replacement is pro work. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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Sources
Page last updated .