2012 Toyota Highlander Problems: 5 Known Issues
2012 model year · 1,200+ owner reports · Updated November 2026
According to Au7o's analysis of 1,200+ owner reports, the 2012 Toyota Highlander has 5 documented known issues, with 1 rated critical. The most serious is Hybrid Battery Pack Wears Out and Sets P0A80 "Replace Hybrid Battery" Code ($1,999-$2,999 repair). The most commonly reported issue is Hybrid Battery Pack Wears Out and Sets P0A80 "Replace Hybrid Battery" Code with 1,200 owner reports. Across all issues with published estimates, repair costs range from $50 to $2,999. DIY maintenance guides at au7o.io.
2012 · XLE · 3.5L V6
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All 5 Known Issues
NHTSA Recalls11 recalls
ELECTRICAL SYSTEM
Fujian Wanda Automobile Glass Industry (Wanda) is recalling certain aftermarket Replacement Windshields sold for use in 2014-2018 Toyota Highlander vehicles. The windshields have an attached wire harness that water may leak into, possibly causing damage to the vehicle's Engine Control Module (ECM).
EQUIPMENT
Gulf States Toyota, Inc. (GST) is recalling certain 2017 Toyota Highlander and Highlander Hybrid vehicles equipped with accessory roof rail cross bars. The fasteners for the roof rails may not be torqued properly.
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020 RAV4, 2019-2020 Sequoia, 2017-2020 Sienna, 2019-2020 Tundra, 2018-2020 Lexus ES350, 2017 Lexus GS200t, 2017-2019 Lexus GS350, 2019 Lexus GS300, 2018-2020 Lexus LC500h, 2019-2020 Lexus LS500, 2018-2019 Lexus GX460, 2017 Lexus IS200t, 2019 Lexus IS300, 2019 Lexus IS350, 2018-2020 Lexus LC500, 2018 Lexus LS500, 2019 Lexus LS500h, 2018-2019 Lexus LX570, 2017 Lexus RC200t, 2019 Lexus RC300, RC350, 2017 and 2019-2020 Lexus RX350, 2018-2020 RX350L, 2019 Lexus UX200, 2018-2019 Lexus NX300 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018 Toyota Camry and Highlander vehicles, 2017 Toyota Sienna and Tacoma vehicles and 2017 Lexus RX350 vehicles. During the manufacturing process, the oil galley in the rotor for the brake booster vacuum pump assembly may have been improperly machined possibly resulting in a sudden loss of brake assist.
TIRES:TEMPORARY/EMERGENCY SPARE TIRE
Gulf States Toyota, Inc. (Gulf States) is recalling certain 2017 4Runner , 86, Avalon, Camry, Camry Hybrid, Corolla, Corolla iM, Highlander, Highlander Hybrid, Prius, Prius C, RAV4, RAV4 Hybrid, Sienna and Yaris vehicles. The spare tire air pressure was not adjusted to the proper pressure as stated on the Tire Pressure Label.
+ 6 more recalls. Check all on NHTSA.gov
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Frequently Asked Questions
What are the most common Toyota Highlander problems?
According to Au7o's analysis of 1,200+ owner reports, the 2012 Toyota Highlander has 5 documented issues. The most frequently reported are: Hybrid Battery Pack Wears Out and Sets P0A80 "Replace Hybrid Battery" Code, Rear A/C Underbody Line and Rear Evaporator Refrigerant Leak — Rear Vents Blow Warm First, Power Liftgate Support Arm and Hinge Failure (Rear Hatch Bows / Won't Close) — Class Action. Of these, 1 is rated critical and should be addressed promptly.
Is the Toyota Highlander reliable?
The 2012 Toyota Highlander has 5 known issues documented across 1,200+ owner reports. 1 issue is rated critical: Hybrid Battery Pack Wears Out and Sets P0A80 "Replace Hybrid Battery" Code. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Toyota Highlander problems?
Repair costs for known Toyota Highlander issues range from $50 to $2,999, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Hybrid Battery Pack Wears Out and Sets P0A80 "Replace Hybrid Battery" Code, typically costs $1,999-$2,999 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2006-2013 Toyota Highlander Hybrid Battery Pack Wears Out and Sets P0A80 "Replace Hybrid Battery" Code?
The Highlander Hybrid's high-voltage (HV) traction battery loses capacity with age and mileage. When the battery system detects a problem, the check-engine light comes on and the car stores P0A80 ("Replace Hybrid Battery Pack"), sometimes along with P0A7F. Toyota's service bullet… Repairs typically run $1,999-$2,999. Severity: high.
What is the 2008-2013 Toyota Highlander Rear A/C Underbody Line and Rear Evaporator Refrigerant Leak — Rear Vents Blow Warm First?
Highlanders equipped with rear air conditioning route refrigerant lines along the underbody, up the passenger side, to a rear evaporator and expansion valve behind the trim. Those long runs, their crimped hose-to-aluminium-line joints, and the rear evaporator core itself are a we… Repairs typically run $250-$1,600. Severity: medium.
What is the 2008-2019 Toyota Highlander Power Liftgate Support Arm and Hinge Failure (Rear Hatch Bows / Won't Close) — Class Action?
The power liftgate on second- and third-generation Highlanders (and the Hybrid) is prone to the power lift arm/strut breaking away from the gate, which lets the driver-side hinge bow and can leave the hatch stuck open or unable to latch closed. A class action filed in 2025 (Morga… Repairs typically run $250-$1,500. Severity: medium.
What is the 2008-2019 Toyota Highlander Rear Cargo / Hatch Water Leak (Taillight & Hatch Seal Intrusion)?
Water pools in the rear cargo area, spare-tire well, and behind the rear interior trim because of leaks at the taillight seals/gaskets and the liftgate/hatch weatherstrip, plus secondary paths through the third (high-mount) brake light, the rear air-deflector/spoiler bracket foam… Repairs typically run $50-$400. Severity: low.
What is the 2008-2013 Toyota Highlander Second-Row Walk-In Seat Latch and Seatback Release Cable Breakage — Third-Row Access Blocked?
On XU40 Highlanders the second-row seat uses a latch, cable and linkage assembly to fold the seatback and auto-slide the seat forward for third-row access. The plastic cable retainer in the latch mechanism cracks and lets the release cable jump out of position, and the cables the… Repairs typically run $80-$600. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.