Does the 2021 Toyota Highlander have any recalls?

The 2021 Toyota Highlander has 2 recalls on file with NHTSA, including issues with air bags:sensor:occupant classification.

How many complaints have been filed for the 2021 Toyota Highlander?

555 consumer complaints have been filed with NHTSA for the 2021 Toyota Highlander.

Are there technical service bulletins (TSBs) for the 2021 Toyota Highlander?

There are 179 technical service bulletins (TSBs) on file with NHTSA for the 2021 Toyota Highlander.

2021 Toyota Highlander Service and Repair Manual

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Factory-Grade Data

2021 Toyota Highlander service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

Step-by-step repair procedures and service information
Specifications, torque values, and reference data
Electrical diagnostics with full wiring diagrams
Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
Diagnostic trouble codes and troubleshooting flow
Maintenance schedules and fluid capacities

Trims covered

Hybrid LE
Hybrid Limited
Hybrid Platinum
Hybrid XLE
L
LE
Limited
Platinum
XLE
XSE

Index / Table of contents

Body
Brakes
Chassis Electrical
Driveline
Engine Cooling
Engine Electrical
Engine Mechanical
Engine Performance & Emission Controls
Fuel System
General Information & Identification
Heating, Ventilation, & Air Conditioning
Hybrid & Electric Vehicle Systems
Maintenance & Lubrication
Specifications
Steering
Suspension
Transmission, Clutch, & Transfer Case
Diagnostic Trouble Codes
Technical Service Bulletins
Wiring Diagrams

Payment & Security

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Vehicle Safety Data

2021 Toyota Highlander Recalls & Complaints

NHTSA #23V86500020/12/2023Component: AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450

Consequence

An air bag that does not deploy during a crash increases the risk of injury.

Remedy

Dealers will inspect and replace the sensor as necessary, free of charge. Interim letters notifying

NHTSA #24V45200018/06/2024Component: TIRES

Southeast Toyota Distributors, LLC (SET) is recalling certain 2021-2024 Highlander vehicles. The 20-inch accessory tires with an insufficient load rating for the vehicle's Gross Axle Weight Rating (G

Consequence

Tires with an insufficient load rating can be overloaded and fail, increasing the risk of a crash.

Remedy

SET will inspect and replace the tires and information placard, as necessary free of charge. Owner

TSB #11031158

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 accessory assembly. The ant

TSB #11028726

OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.

TSB #11028722

Some 2018 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software.

TSB #11028712

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 purpose of this Servic

TSB #11026318

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 assembly is available to

TSB #11024080

Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyotas New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers ownership experience. Toyot

TSB #11020657

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 repairing refrigerant

TSB #11019332

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 and are only to be u

Showing the 8 most recent of 179 technical service bulletins on file with NHTSA.

20251110Component: STEERINGCrash reported3 injured

Vehicle had a very loud high pitch whining noise the rapid accelerated I was braking and brakes were not working vehicle screen was flashing Vehicle Malfunction. yes vehicle is available. I could not

20251110Component: SERVICE BRAKESCrash reported3 injured

Vehicle had a very loud high pitch whining noise the rapid accelerated I was braking and brakes were not working vehicle screen was flashing Vehicle Malfunction. yes vehicle is available. I could not

20251110Component: POWER TRAINCrash reported3 injured

Vehicle had a very loud high pitch whining noise the rapid accelerated I was braking and brakes were not working vehicle screen was flashing Vehicle Malfunction. yes vehicle is available. I could not

20210524Component: AIR BAGSCrash reported2 injured

Traveling south bound on SC11 (in Seneca South Carolina) a vehicle that was traveling east bound, failed to stop and traveled across my path. The front end of my vehicle impacted the drivers side / pa

20251002Component: AIR BAGSCrash reported1 injured

The contact owned a 2021 Toyota Highlander. The contact stated that while his wife was driving at an undisclosed low speed and in the process of merging into the highway, the vehicle was suddenly rear

Showing the 5 most serious of 555 complaints filed with NHTSA.

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