Electrical System Related Problems of the 2017 Toyota 4Runner

Table 1 shows three common electrical system related problems of the 2017 Toyota 4Runner. The number one most common problem is related to the electrical system (three problems). The second most common problem is related to the software (one problem).

Table 1. Electrical System related problems of Toyota 4Runner

Problem Category Number of Problems
Electrical System problems
3
Software problems
1
Wiring problems
1

Recently reported Electrical System problems of the 2017 Toyota 4Runner

The Electrical System problem

For the 2nd time in 5 weeks, the main wiring harness and knock sensor have been eaten and destroyed by rodents. This has caused thousands of dollars worth of damage, and it's due to the soy based wiring used in the wiring harness.   Read details...

The Software problem

Toyota entune (iphone app) will not pair with your phone or disconnects during use because app does not maintain the user's login credentials. The behavior of the connectivity between the vehicle's entertainment system and phone is difficult to predict, sometimes the system won't work without the   Read details...

The Wiring problem

My car was parked overnight and the next day when I got in to run errands and my check engine light was flashing and my trac off light was on. When I put the vehicle in drive it was very sluggish, I called the dealer and they sent a tow truck.   Read details...


Electrical System related problems in other Toyota 4Runner model year vehicles:



4Runner Service Bulletins
4Runner Safety Recalls
4Runner Defect Investigations