2016 Toyota Tacoma: Soy based wiring being chewed by rodents
Common wear/failure (not a recall)
Symptoms
Owners of the 2016 Tacoma report: soy based wiring being chewed by rodents. CarComplaints.com lists 2 owner complaints, average mileage 4,950 miles.
NHTSA has 36 owner complaints for the 2016 Tacoma in this area. Examples:
- NHTSA complaint ODI #11677329 (filed 07/30/2025): “I am reporting a persistent and unsafe issue with the factory-installed entune infotainment system in my 2016 toyota tacoma. while driving — whether locally or on the highway — the system frequently freezes, becomes unresponsive, or abruptly resets itself, oft…”
- NHTSA complaint ODI #11617153 (filed 09/30/2024): “Seat heating module for my driver seat has melted and is further irrepairable without buying the entire harness to fix the issue. there are multiple reports of this happening across forums.…”
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: new harness by dealer (1 reports) replace wiring (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 $2,810 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
- CarComplaints.com: Soy based wiring being chewed by rodents (2016 Tacoma)
- NHTSA complaints API, 2016 Tacoma
Page last updated .