2010 Toyota Highlander: Door locks not functioning
Common wear/failure (not a recall)
Symptoms
Owners of the 2010 Highlander report: door locks not functioning. CarComplaints.com lists 3 owner complaints, average mileage 86,350 miles.
NHTSA has 55 owner complaints for the 2010 Highlander in this area. Examples:
- NHTSA complaint ODI #11722240 (filed 03/05/2026): “When applying the brake slowly all of a sudden the car went full acceleration and crashed 500ft away at high speed. the car is crashed but available for inspection for a short period of time until the insurance company takes full posession. there are not open …”
- NHTSA complaint ODI #11706861 (filed 12/23/2025): “The contact owns a 2010 toyota highlander. the contact stated that the gear shifter had been stuck on several occasions. the vehicle was taken to the dealer, where the fuses were replaced on several occasions; however, the failure persisted. the vehicle was ta…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: repair ecu (1 reports) replaced rear hatch door lock assembly (1 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
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
CarComplaints.com owners report a typical repair cost of about $600 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
- CarComplaints.com: Door locks not functioning (2010 Highlander)
- NHTSA complaints API, 2010 Highlander
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