2015 Toyota Prius 1.8L Hybrid electric (clean) · LP64 JGV

The latest MOT test on the 2015 Toyota Prius recorded a failure for the offside front position lamp system, indicating a persistent electrical fault that has not been rectified despite passing subsequent tests. This failure, coupled with the previous advisory for the same component in 2025 and a minor lamp intensity issue, suggests a recurring issue with the offside front position lamp circuit or wiring, which may stem from a failing relay, sensor, or connector. While the vehicle has otherwise passed recent MOTs without major defects, the repeated electrical failures warrant immediate attention to prevent further compliance issues and potential safety risks, such as reduced visibility during low-light conditions. The absence of other critical failures in the last two clean tests indicates that the core mechanical and structural systems are likely in a stable condition, but the lamp issue demands prompt resolution before it escalates. The recorded mileage of 222,212 miles for a vehicle aged approximately 11 years represents a high annual usage rate of around 20,201 miles per annum, which is notably elevated for its age. Such mileage accumulation typically accelerates wear on consumables like brake pads, suspension components, and fluid systems, as well as on drivetrain elements such as the transmission and exhaust manifold. The rapid mileage suggests either intensive use or a combination of high-mileage driving and periods of prolonged standing, which can exacerbate issues like brake disc corrosion, suspension bush degradation, and fluid degradation from heat exposure. The absence of significant gaps in the MOT history implies consistent use, which may have contributed to the observed wear patterns, particularly in the braking and lighting systems. For a prospective buyer, the most critical immediate checks should focus on the electrical and braking systems due to the recurring MOT issues. Begin by inspecting the offside front position lamp circuit, including the wiring harness, connectors, and relay, for signs of corrosion, loose connections, or physical damage. During a test drive, listen for any intermittent electrical whining or clicking noises that could indicate a failing lamp module or sensor. Next, verify the near-side rear brake disc condition, as the 2024 advisory suggests moderate wear or pitting, which could worsen with further use. Check for uneven brake pad wear, brake fluid leaks under the vehicle, and signs of brake shudder or pulsation, which may indicate warped discs or binding calipers. Additionally, ensure the near-side rear stop lamps are functioning correctly, as the 2023 failure highlights a persistent issue that must be addressed to comply with MOT standards. Beyond the immediate concerns, conduct a thorough inspection of the vehicle’s suspension, tyres, and fluids to mitigate long-term risks. Given the high mileage, examine the suspension for signs of worn suspension bushes, coil spring failure, or excessive play in the struts, which can lead to clunking noises over bumps or uneven ride quality. Inspect the tyres for sidewall perishing, which is more likely with age and low mileage, as well as uneven tread wear that could indicate alignment or suspension issues. Check the brake fluid level and condition, as prolonged standing can cause brake fluid to degrade, leading to reduced braking performance. Verify the engine oil and transmission fluid levels and condition, ensuring they meet the manufacturer’s specifications and are free of contaminants. Lastly, assess the battery health, particularly if the vehicle has been left unused for extended periods, as standing corrosion or a failing battery can lead to electrical failures and poor starting performance. Prioritise a professional inspection of the drivetrain and exhaust system to confirm there are no hidden issues, such as catalytic converter blockages or transmission fluid leaks, which could affect fuel efficiency and emissions compliance.