2023 Toyota Highlander Problems: 1 Issues Every Owner Should Know
2023 model year · 920+ owner reports · Updated April 2026
According to Au7o's analysis of 920+ owner reports, the 2023 Toyota Highlander has 1 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is 8-Speed Automatic Transmission Shudder and Hesitation with 920 owner reports. Across all issues, repair costs range from $0 to $2,500. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2020-2024 Toyota Highlander, the Direct Shift 8AT transmission in 4th-gen Highlanders exhibits shudder, hesitation on acceleration, and rough downshifts. The torque converter lockup clutch causes vibration at low speeds, particularly between 25-45 mph.
Common Symptoms
- Shudder at 25-45 mph under light throttle
- Hesitation on acceleration from stop
- Rough downshifts when slowing
- Vibration felt through seat and steering wheel
How to Fix
Visit dealer for TCM software update (TSB 0011-21). Transmission fluid drain and refill with Toyota WS ATF may help. Some owners report improvement after the transmission 'learns' driving habits over 5,000+ miles. Persistent cases may need torque converter replacement.
What Owners Are Using
Parts and tips from 920+ owners who fixed this issue
- Tip
- Tip
- UpgradeTransmission flush kit for complete fluid exchange to address shudder (Liqui Moly Transmission Flush Kit)
- UpgradeFull synthetic ATF designed to reduce shudder in automatic transmissions (Valvoline MaxLife ATF Full Synthetic)