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)

Why a Nissan Leaf Won’t Charge — PDM Failure Diagnosis If your Nissan Leaf suddenly won’t charge and the dealer is quoting $4,000-5,000 for a...

2016-2019 Toyota Prius Exhaust Heat Exchanger Failure

Why Your “Head Gasket Problem” Might Be Something Else Prius Exhaust Heat Exchanger Failure: Why It Mimics a Head Gasket What is this problem? If...

2010-2015 (Generation 3) Toyota Prius Head Gaskets

A comprehensive guide from Atomic Auto, Portland’s hybrid specialists What’s happening with Gen 3 Prius head gaskets? The third-generation Toyota Prius (2010-2015) has a well-documented...