The Toyota RAV4 is the best-selling SUV in North America for a reason: legendary reliability, excellent fuel economy, and high resale value. However, if you are in the market for a used RAV4 Hybrid (2019-2022) or RAV4 Prime, there is one “hidden” defect that could cost you over $6,000 if you aren’t careful.
In our recent pre-purchase inspections (PPI), we uncovered a recurring issue that every buyer needs to know about. Here is your definitive guide to shopping for a Toyota RAV4 without getting burned.
1. The #1 Red Flag: “Cablegate” Explained
The most significant issue we find on RAV4 Hybrids and Primes—especially in “salt-belt” regions like Canada or the Northeast US—is high-voltage cable corrosion.
The issue in a nutshell:
- The Location: The high-voltage cable connects to the rear electric motor (MGR). It is located under the vehicle, exposed to road salt, water, and debris.
- The Problem: The orange protective casing traps moisture and salt against the connector. Over time, the wiring corrodes, eventually causing a “Hybrid System Malfunction” warning.
- The Cost: Because this is a high-voltage component, Toyota often recommends replacing the entire cable harness, which can cost between $5,000 and $7,000 CAD out of warranty.
Pro Tip: Look for the “New Design” cable. Newer models (late 2022+) have an open-bottom connector cover that allows debris to fall out rather than trapping it.
2. 5 Things to Watch Out For When Shopping
Beyond the hybrid cable, our inspections of these RAV4s highlighted several other key areas for buyers to investigate:
A. Roof Rail Leaks
Earlier models of the current generation (2019-2021) have a known issue where the roof rail mounting clips fail, allowing water to leak into the headliner and onto side-curtain airbags.
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Look for: Water stains on the A-pillar or headliner, or a musty smell inside the cabin.
B. Battery Drain Issues
Many RAV4 owners have reported “parasitic draw” where the 12V battery dies overnight.
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Check: Ensure the vehicle has had the latest DC-DC converter software update performed by a Toyota dealer.
C. Power Liftgate Malfunctions
The motorized struts on the RAV4 liftgate are prone to failing or making a loud grinding noise. Replacement is surprisingly expensive.
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Check: Open and close the trunk 3–4 times before your test drive to ensure smooth operation.
D. Floor Mat & Carpet Moisture
Due to the roof leak mentioned above or AC drain clogs, moisture can settle under the floor mats.
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Check: Lift the mats and feel the actual carpet for dampness. Corrosion on the floor-mounted hybrid battery components can be catastrophic.
3. Case Study: Real-World Inspection Results
In the example showcased here (allbeit a 2024, but very similar car) which was analyzed by our team, we performed a comprehensive mechanical and electrical audit:
- Visual Underbody Audit: We specifically checked the rear motor connector. Even on lower-mileage units, surface oxidation can be a sign of future failure.
- Diagnostic Scanning: We used Toyota-Compatible diagnostic tools to check for “History Codes” in the Hybrid Control and Battery Management modules.
- Paint Depth Analysis: Both vehicles were checked for original paint thickness to ensure no hidden structural repairs from unreported accidents.
4. The Buyer’s Negotiation Checklist
Before you sign the papers on a used RAV4 Hybrid, ask the seller or dealer these three questions:
- “Has the rear high-voltage cable been inspected for corrosion recently?” especially if the vehicle is pre 2023 (Ask for photos of the connector).
- “Are there any open recalls for the roof rail leaks or the 12V battery drain?”
- “Can I see a ‘Health Check’ report from a Toyota Techstream diagnostic or similar aftermarket reputable diagnostics tool?”
Final Verdict: Is the RAV4 Still a Good Buy?
Yes. Despite these issues, the RAV4 remains a top-tier SUV. However, the “Toyota Reliability” badge doesn’t mean you should skip a Pre-Purchase Inspection. Identifying a corroded cable before you buy gives you the leverage to walk away or demand a $6,000 price reduction.
Shopping for a RAV4 in Montreal? Don’t guess—know exactly what you’re buying. Book your Car Inspected™ PPI today.
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