2017 Toyota 4RUNNER Electrical system Problems
- Complaints
- 5about this part
- Share
- 14%of 36 total for the year
- Median mileage
- 1,100miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the electrical system of the 2017 Toyota 4RUNNER, 14% of the 36 complaints for this model year. Where a mileage was given, the median is 1,100 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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. The truck stayed overnight so they could diagnose but she was pretty sure that it was rodents chewing on the wires because it was a common problem. My husband and I did some checking while it was in service and found out that they use a soy base on the wiring and that rodents love it and it's pretty common problem. …”
NHTSA complaint #10970966, filed 2017-04, 1,599 miles“Car stalled on the free way while driving . The dash board had a warning to check engine at dealer. The car was towed to the dealership (tansky sawmill, dublin oh). They reset the car and it was returned to us. According to dealership, diagnostics detected two error codes reported a) p0a0f, b) p3190 currently do not feel safe driving on the free way”
NHTSA complaint #11051617, filed 2017-11, 120 miles“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 phone's app running and other times it will - sometimes it won't work even when the app is running. Often, when the entertainment system fails to connect it stops functioning and pops up messages that require user input while driving. …”
NHTSA complaint #11090079, filed 2018-04, 8,600 miles“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. I cannot keep this vehicle outside for any period of time without the threat of the harnesses getting chewed.”
NHTSA complaint #11722858, filed 2026-03Related service bulletins
- 11022964Aug 20, 2025Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low.
- 11020657Jun 13, 2025The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service…
- 10245488Oct 25, 2023TI: TECHNICAL INSTRUCTIONS FOR LIMITED SERVICE CAMPAIGN K0P CUSTOMER SUPPORT PROGRAM 19TE12 SAFETY CONNECT SYSTEM ? VEHICLE LOCATION INACCURATE CERTAIN 2013 ? 2019 MODEL YEAR…
- 10245487Oct 25, 2023DP: The Data Communication Module (DCM) in the subject vehicles are equipped with software to identify the location of the vehicle using the Global Positioning System (GPS) to…
- 10238157May 30, 2023TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered…
- 10224102Jun 3, 2022TSB: Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 01013E), Entune? Audio Plus (version 010156 or 01015C), or Entune? Premium Audio (versions…
- 10220177Jun 3, 2022TSB: Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 01013E), Entune? Audio Plus (version 010156 or 01015C), or Entune? Premium Audio (versions…
- 10211830Apr 29, 2022Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 01013E), Entune? Audio Plus (version 010156 or 01015C), or Entune? Premium Audio (versions…
- 10207963Jan 28, 2022TSB This Service Bulletin includes guidelines meant to help determine whether to repair or replace a wire harness assembly based on damage type. This Service Bulletin should be…
- 10188915Feb 8, 2021TSB: Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 01013E), Entune? Audio Plus (version 010156 or 01015C), or Entune? Premium Audio (versions…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 14% |
| 2025 | 8 | 13% |
| 2024 | 2 | 20% |
| 2022 | 2 | 5% |
| 2021 | 3 | 8% |
| 2020 | 1 | 3% |
| 2019 | 8 | 12% |
| 2018 | 4 | 7% |
| 2017 | 5 | 14% |
| 2016 | 18 | 23% |
| 2015 | 13 | 15% |
| 2014 | 24 | 31% |
| 2013 | 4 | 11% |
| 2012 | 6 | 6% |
| 2011 | 6 | 4% |
| 2010 | 4 | 3% |
| 2009 | 4 | 18% |
| 2008 | 5 | 5% |
| 2007 | 13 | 8% |
| 2006 | 18 | 5% |
| 2005 | 9 | 2% |
| 2004 | 22 | 3% |
| 2003 | 12 | 2% |
| 2002 | 3 | 1% |
| 2001 | 6 | 3% |
| 2000 | 4 | 1% |
| 1999 | 17 | 5% |
| 1998 | 11 | 4% |
| 1997 | 6 | 2% |
| 1996 | 3 | 2% |
| 1995 | 6 | 3% |
| 1993 | 5 | 10% |
| 1992 | 6 | 11% |
| 1990 | 1 | 1% |
Other parts of the 2017 Toyota 4RUNNER
14 complaintsBrakes
9 complaintsAir bags
3 complaintsEngine
2 complaintsFuel system
2 complaintsSteering
2 complaintsBody and structure
2 complaintsSuspension
2 complaintsVehicle speed control
2 complaintsLatches, locks and linkages
1 complaintsSeat belts
1 complaintsSeats
1 complaints
← All problems reported for the 2017 Toyota 4RUNNER
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology