Known Issues by Model

Model-specific known problems and repairs for Toyota, Nissan, Honda hybrids and EVs.

How to Jump Start a Prius (2016–2022 Gen 4, Including Prime)

Short version: This guide is specifically for the 2016–2022 (Gen 4) Prius, including the Prius Prime — for other years, use our all-generations jump-start guide....

2005 Honda Element engine failure from a broken heater valve

Short version: A 2005 Honda Element lost cabin heat, then the engine quit near Hood River. A broken heater control valve had let the coolant...

Highlander Hybrid Brake System: Why One Fix Isn't Always Enough

Short version: A 2009 Highlander Hybrid’s brake warning came back two weeks after we replaced the ABS actuator pump for a C1256-141 accumulator low pressure...

Nissan Leaf Won't Charge? It Might Be the PDM (Power Delivery Module)

Short version: A 2016 Nissan Leaf that wouldn’t charge at all turned out to be a failed Power Delivery Module (PDM), a known failure point...

2016-2019 Toyota Prius Exhaust Heat Exchanger Failure

Short version: If your 2016-2019 Prius or 2017-2019 Prius Prime is losing coolant with no visible leak, the exhaust heat exchanger may be leaking coolant...

2010-2015 (Generation 3) Toyota Prius Head Gaskets

Short version: The 2010-2015 Gen 3 Prius (2ZR-FXE engine) has a well-documented head gasket weakness, with most failures between 130,000-200,000 miles—the classic tell is a...