c1391 Toyota Highlander Hybrid: Power, Efficiency, and Reliability Combined

The c1391 Toyota Highlander Hybrid stands out as a powerful, efficient, and technologically advanced SUV, redefining what a hybrid vehicle can deliver on the road. Combining bold performance with exceptional fuel economy, it’s a top choice for families and eco-conscious drivers alike.

C1391 Hybrid Performance and Design

Powered by a seamless 3.5-liter V6 engine paired with electric motors, the c1391 Highlander Hybrid delivers 361 horsepower and instant torque, ensuring confident acceleration and responsive handling. Its sleek, rugged exterior design with bold LED lighting and off-road-ready styling reflects both elegance and capability, making it a standout in the midsize SUV segment. Built for versatility, this hybrid balances comfort, space, and advanced safety features like adaptive cruise control and lane-keeping assist.

Exceptional Fuel Economy and Eco-Friendly Innovation

The c1391 Highlander Hybrid achieves up to 34 miles per gallon combined, thanks to Toyota’s Hybrid Synergy Drive that intelligently manages power delivery and regenerative braking. With zero emissions in city driving and impressive efficiency on highways, it delivers strong value while minimizing environmental impact. This hybrid solution proves that sustainability and performance go hand in hand, appealing to those prioritizing both efficiency and responsibility.

Cutting-Edge Tech and Family-Centric Features

Inside, the c1391 Highlander Hybrid offers a premium cabin with a 12.3-inch touchscreen, Apple CarPlay and Android Auto integration, and a suite of driver-assist technologies including automatic emergency braking and blind-spot monitoring. Spacious third-row seating for up to eight passengers, ample cargo headroom, and thoughtful tech like a power liftgate enhance daily usability. Whether commuting, road-tripping, or heading to the grocery store, this hybrid delivers a seamless, connected experience built for modern families.

The c1391 Toyota Highlander Hybrid blends powerful hybrid performance, intelligent efficiency, and family-focused innovation into one iconic vehicle. With its proven reliability, advanced tech, and eco-conscious design, it’s more than a car—it’s a smarter, cleaner way to explore life. Discover the c1391 Highlander Hybrid today and experience the future of sustainable driving.

If your Toyota or Lexus hybrid suddenly shows the C1391 abnormal leak in the accumulator fault, it's not just another warning light. This code signals an internal brake system leak that can compromise safety and leave you vulnerable on the road. At Hybrid EV Engineering, we specialize in diagnosing and repairing C1391 accumulator leak malfunctions on Prius, Camry, Highlander, and Lexus.

So my highlander has the dreaded accumulator pressure low, internal leak code. I'm sorta of puzzled what part that needs to be replaced. Is it the block actuator thing or the pump / accumulator? I have access to Techstream and would like to fix this problem on the cheap.

I don't wan't to throw. Repair Information for C1391 Toyota code. Learn what Abnormal Leak Of Accumulator Pressure means, location and how to repair.

The C1391 diagnostic code for Toyota vehicles indicates an abnormal leak of accumulator pressure within the vehicle's braking system. This issue typically affects vehicles equipped with an anti-lock braking system (ABS). The accumulator is a component that stores hydraulic pressure for the ABS system to use in emergency braking situations.

Highlander models may face brake accumulator leaks and speed sensor failures causing warning codes. The C1391 code indicates an abnormal leak in the brake accumulator, often due to worn seals or hoses. Since the vehicle's brakes feel normal, inspect the accumulator's rubber diaphragm and brake lines for cracks or leaks.

2008-09 Toyota Highlander hybrid C1391 code fix (that BuZZzzing sound coming from the ABS pump)ABS Control module: https://ebay.us/m/4GXGYG. I am curious if anyone knows how to force one or more of these DTCs (C1391 C1252 C1256 C1253)? Thank you! For reference, I am including a link to a Youtube video I found that displays the same symptoms in which the brake booster pump is running more so frequently. The C1391 code is a diagnostic trouble code (DTC) that is specific to the Toyota Highlander.

This code indicates a problem with the vehicle's engine control module (ECM) or the engine's electronic throttle control system. TOYOTA: Tsb: some 2008? 2010 model year highlander hybrid vehicles may exhibit a condition where the brake, abs, and/or trac warning light (s) are on and/or a check vsc message displays. Diagnostic trouble codes (dtcs) C1391, C1252, C1253, and C1256 may be stored.

Toyota is providing coverage for repairs related to the certain internal malfunctions of the brake booster assemblies. One or more of the following specific Diagnostic Trouble Codes (DTCs) C1391, C1252, C1256 or C1253 will be stored in the vehicles memory to be used as verification.