2023 Toyota Highlander problems & reliability
170 owner complaints filed with NHTSA for the 2023 Toyota Highlander, alongside 9 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.
11 complaints report injuries (12 injured).
Federal crash records (FARS 2020–2023): 2023 Toyota Highlander vehicles were involved in 3 fatal crashes with 0 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Unknown OR Other | 38 | 22% |
| Structure | 31 | 18% |
| Engine | 27 | 16% |
| Service Brakes | 17 | 10% |
| Fuel/propulsion System | 16 | 9% |
| Power Train | 16 | 9% |
| Air Bags | 12 | 7% |
| Electrical System | 12 | 7% |
| Seats | 11 | 6% |
| Vehicle Speed Control | 9 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Complaints by incident year
What owners report
“2023 Toyota Highlander Hybrid Regenerative Brake Transition loss of brake pad pressure resulting in acceleration of the vehicle under downhill conditions. Have momentarily experienced the loss of braking frequently during braking when going downhill. This results in the vehicle gaining speed during this 1 or 2 second…”
Service Brakes · filed Aug 5, 2026
“The contact owns a 2023 Toyota Highlander. The contact stated that while attempting to start the vehicle, the driver’s and passenger’s side mirrors moved downward independently, causing the contact to manually adjust the side mirrors. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed…”
Visibility · filed Jul 31, 2026
“Vehicle has strong gas smell and has gas vapor streaming out from under rear driver side wheel well and gas cap area.”
Fuel/propulsion System · filed Jul 30, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
130 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2023 Toyota Highlander. The 10 most recent:
Some 2020 – 2026 model year Highlander and Highlander Hybrid vehicles may exhibit a water leak from the roof rack attachment clips. This may be caused by the sealant in the roof channel obstructing the proper seating…
T-SB-0040-24 Rev1 · Service Bulletin/Repair Instructions · issued Jun 25, 2026
Some 2020 – 2024 model year Highlander and Highlander Hybrid vehicles may exhibit a condition in which the air conditioner does not cool due to a leak and/or corrosion in the rear underbody air conditioner tube and…
T-SB-0021-26 · Service Bulletin/Repair Instructions · issued Mar 18, 2026
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
Some 2020 – 2023 model year Highlander and Highlander Hybrid vehicles may exhibit a condition in which the Power Back Door (PBD) will not open or close and/or stops moving while opening or closing. A modified PBD unit…
T-SB-0086-25 · Service Bulletin/Repair Instructions · issued Nov 18, 2025
A new head unit software update is available for 2022 – 2025 model year Tundra, and Tundra Hybrid; 2023 – 2025 model year Corolla Cross, Corolla Cross Hybrid, Highlander, Highlander Hybrid, Mirai, and Sequoia Hybrid…
T-SB-0083-25 · Service Bulletin/Repair Instructions · issued Nov 7, 2025
Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers’…
22TE09 · Service Campaign · issued Sep 17, 2025
A new head unit software update is available for 2023 model year Corolla Cross, Corolla Cross Hybrid, Highlander, Highlander Hybrid, and Mirai vehicles equipped with Toyota Multimedia (earlier than version 2170). This…
T-SB-0015-24 Rev2 · Service Bulletin/Repair Instructions · issued Sep 9, 2025
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
To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system…
T-TT-0779-25 · Service Bulletin/Repair Instructions · issued Apr 2, 2025
To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system…
T-TT-0779-25 · Service Bulletin/Repair Instructions · issued Apr 2, 2025
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 2023 Toyota Highlander has 9 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 2023 Toyota Highlander?
- · 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.