2022 Toyota Highlander Coolant Capacity & Type
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The 2022 Toyota Highlander holds approximately 6.9 to 7.4 quarts (6.5 to 7.0 liters) of coolant, depending on the engine. Properly maintaining your Highlander's cooling system is crucial for its longevity and performance, preventing overheating and corrosion.
Quick Answer
- Total Cooling System Capacity:
- 2.5L Hybrid: 6.9 quarts (6.5 liters)
- 3.5L V6: 7.4 quarts (7.0 liters)
- OEM Coolant Specification: Toyota Super Long Life Coolant (SLLC) – Pink, Phosphate Organic Acid Technology (P-OAT).
- Mix Ratio: 50/50 prediluted.
Capacity by Engine Option
Below is a detailed breakdown of the coolant capacities for the different engine options available in the 2022 Toyota Highlander:
| Engine Type | Approximate Capacity (Quarts) | Approximate Capacity (Liters) |
|---|---|---|
| 2.5L Hybrid (A25A-FXS) | 6.9 | 6.5 |
| 3.5L V6 (2GR-FKS) | 7.4 | 7.0 |
Always consult your owner's manual for the most accurate and up-to-date information specific to your vehicle's trim and engine.
Flush Interval
Toyota recommends the following coolant flush intervals for the 2022 Highlander using Super Long Life Coolant:
- First flush: 100,000 miles (160,000 km) or 120 months (10 years)
- Subsequent flushes: Every 50,000 miles (80,000 km) or 60 months (5 years) thereafter
Severe Duty: If you operate your Highlander under severe conditions (e.g., towing heavy loads, frequent short trips in extreme temperatures, dusty conditions), it
More specs for the 2022 Toyota Highlander
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2022 Toyota Highlander Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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Values can vary by engine, trim and build date; check your VIN-specific service information. Updated 2026-06-28.