2016 Toyota 4RUNNER problems & reliability
77 owner complaints filed with NHTSA for the 2016 Toyota 4RUNNER, alongside 8 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
5 complaints report injuries (6 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Electrical System → | 18 | 23% |
| Unknown OR Other | 16 | 21% |
| Air Bags → | 10 | 13% |
| Suspension | 9 | 12% |
| Structure | 7 | 9% |
| Engine | 6 | 8% |
| Power Train | 6 | 8% |
| Service Brakes | 5 | 6% |
| Fuel/propulsion System | 4 | 5% |
| Steering | 4 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 19 reported components →Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Among the 38 complaints that included a usable odometer reading, the median reported incident mileage was 26,500 miles (middle 50% between 16,986 and 48,625 miles).
Complaints by incident year
What owners report
“The paint is failing on this vehicle. The color is 8S6 Nautical Blue Metallic. The paint is peeling on the roof, hood, and two doors. The failure has been confirmed by a body shop.”
Structure · filed Jun 2, 2026
“We were traveling down the mountain of Mt. Nebo in Dardanelle, AR, around 1:08pm on Friday, May 22, 2026. It had been misty rain for a few hours. As we were traveling down the switchbacks of the mountain, we pressed on the brake to slow the vehicle; however, the vehicle did not slow down any. Since we were coming to…”
Air Bags · filed May 26, 2026
“On March 6, I was on South bound on Rt 29 in Culpeper County VA at the posted speed limit of 55mph when I hit a debris item on the road. I do not know what it was but it impacted the front skid plate and seems to be no other damage from the impact. There was no contact with the bumper, wheels or otherwise. There was…”
Air Bags · filed Mar 24, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Desiccated Air Bag Inflator Rupture
Engineering Analysis EA21002 · opened Sep 17, 2021 · open
Technical service bulletins
249 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2016 Toyota 4RUNNER. The 10 most recent:
Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The…
T-SB-0055-24 Rev2 · Service Bulletin/Repair Instructions · issued Jan 7, 2026
The 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 Bulletin aid in locating, inspecting, and…
T-SB-0058-23 Rev1 · Service Campaign · issued Jun 13, 2025
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and…
T-SB-0039-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from…
T-SB-0038-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal…
T-SB-0035-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024
Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow…
T-SB-0061-23 Rev2 · Service Bulletin/Repair Instructions · issued Dec 5, 2024
Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can…
T-SB-0062-23 Rev2 · Service Bulletin/Repair Instructions · issued Dec 3, 2024
Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The…
T-SB-0055-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 29, 2024
Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The…
T-SB-0055-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 29, 2024
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and…
T-SB-0039-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2016 Toyota 4RUNNER has 8 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2016 Toyota 4RUNNER?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Among complaints with usable mileage, the median reported incident mileage was 26,500 miles. This does not predict when a particular vehicle will develop a problem.