2018 Toyota Sequoia

The 2018 Toyota Sequoia is a full-size SUV known for its reliability, spaciousness, and off-road capability. It offers a robust 5.7L V8 engine producing 381 horsepower and 401 lb-ft of torque, paired with a 6-speed automatic transmission. People often praise the Sequoia for its comfortable ride, ample cargo space, and Toyota’s reputation for durability. However, some common complaints include lower fuel economy compared to newer SUVs, a somewhat dated interior design, and its large size making it challenging to maneuver in tight spaces.

Engine

5.7L V8

• Oil Leaks from Timing Chain Cover
  • Description/Symptoms: Oil leak is usually slow. Signs include oil spots under the vehicle and/or a burning oil smell.
  • Solution: Removal of the timing chain cover and resealing with new gaskets/sealant.
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found
• Starter Failure
  • Description/Symptoms: The engine fails to crank, or there is a clicking sound when attempting to start the vehicle.
  • Solution: Replacement of the starter motor.
  • Estimated Cost to Fix: $400 - $700+
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leak is usually slow. Signs include oil spots under the vehicle and/or a burning oil smell.
  • Solution: Replacement of the valve cover gaskets.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Transmission

6-Speed Automatic

• Torque Converter Issues
  • Description/Symptoms: Shuddering or vibration during acceleration, especially at lower speeds. May also cause transmission slipping.
  • Solution: Replacement of the torque converter, or potentially a full transmission rebuild.
  • Estimated Cost to Fix: $800 - $3,000+
  • Recalls: None Found

Suspension

• Rear Air Suspension Failure (if equipped)
  • Description/Symptoms: Vehicle sagging in the rear, compressor running constantly, “suspension height low” warning light.
  • Solution: Replacement of the air springs, compressor, or height sensors. Sometimes all components need to be replaced.
  • Estimated Cost to Fix: $500 - $2,000+ per component.
  • Recalls: None Found
• Ball Joint Wear
  • Description/Symptoms: Clunking noises from the front suspension, especially when going over bumps. Steering may feel loose or vague.
  • Solution: Replacement of the worn ball joints.
  • Estimated Cost to Fix: $300 - $800+ per side.
  • Recalls: None Found

Electrical

• Alternator Failure
  • Description/Symptoms: Battery warning light, dimming headlights, difficulty starting, or complete electrical failure.
  • Solution: Replacement of the alternator.
  • Estimated Cost to Fix: $500 - $900+
  • Recalls: None Found
• Entune Infotainment System Issues
  • Description/Symptoms: Freezing, slow response, Bluetooth connectivity problems, and navigation malfunctions.
  • Solution: Software updates, system resets, or replacement of the head unit.
  • Estimated Cost to Fix: Varies depending on the issue and solution. Software updates may be free; head unit replacement can cost $500 - $1500+
  • Recalls: None Found

Exterior

• Rust on Undercarriage (especially in areas with road salt)
  • Description/Symptoms: Visible rust on frame components, suspension parts, and exhaust system.
  • Solution: Rust removal and treatment, undercoating application, or replacement of heavily corroded parts.
  • Estimated Cost to Fix: Varies widely depending on the severity. Rust removal and treatment $200-$1000+. Replacement of corroded parts $100-$2000+
  • Recalls: None Found

Interior

• Cracked Dashboard
  • Description/Symptoms: Cracking in the dashboard material, especially in hot climates.
  • Solution: Replacement of the dashboard or installation of a dashboard cover.
  • Estimated Cost to Fix: $800 - $2,000+ for dashboard replacement; $50 - $200+ for a dashboard cover.
  • Recalls: None Found

Summary

The 2018 Toyota Sequoia, while generally reliable, does have some common issues owners should be aware of. Engine-related oil leaks and potential starter failures are a moderate concern and can range in cost to repair. Suspension issues like air suspension problems (if equipped) and ball joint wear can affect ride quality and safety, also incurring a moderate repair cost. Electrical problems with the infotainment system and alternator can be annoying. Rust on the undercarriage is a major concern in certain environments, and can be costly to fix if not addressed early. The cracked dashboard is a cosmetic issue but can detract from the vehicle’s appearance and value, with a moderate to high cost to repair. Potential buyers should carefully inspect these areas, especially in areas with heavy use of road salt or harsh climates.