Toyota Prius Transmission Repair Chicago
Expert Toyota Prius transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
Expert Toyota Prius transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
2001–2003: e-CVT (Toyota Hybrid System I) — 1.5L hybrid. 2004–2009: e-CVT (THS II) — 1.5L hybrid, MG1 and MG2 motor-generators. 2010–2015: e-CVT (THS II) — 1.8L hybrid. 2016–2022: e-CVT with improved transaxle. 2023–2024: All-new hybrid e-CVT on fifth-gen Prius. Prime (plug-in) models: same e-CVT with additional high-voltage battery pack.
Prius e-CVT is a hybrid-specific system — not a conventional automatic. We diagnose hybrid Prius transmissions using Toyota Techstream diagnostic software to read HV system data alongside transmission function. Most bearing issues require transaxle removal and overhaul. We do not diagnose or service the HV battery pack — only the mechanical transaxle.
Toyota Hybrid Transaxle Fluid (specific part — do not use conventional ATF or CVT fluid). The Prius transaxle uses a dedicated fluid separate from the HV inverter coolant.
Transaxle inspection: 1 day. Transaxle rebuild: 4–5 days (hybrid work is slower due to HV safety procedures).
"Honest diagnosis, fair price, and the repair was done right. Chicago Transmission has been my go-to for years. Wouldn't trust anyone else with my car."
"The free diagnostic alone was worth the trip. They found the problem fast, gave me a written estimate, and completed the work on time. Exceptional service."
"Family owned and it shows. They treated my car like it was their own. The lifetime warranty on my rebuild gives me total peace of mind. Highly recommend."
On a Prius, that's almost certainly MG (motor-generator) bearing wear inside the transaxle. Very common on Gen 2 (2004–2009) Prius over 150k miles. Get a diagnostic.
Yes — parking pawl failure is a safety issue. Don't park on any incline. Get it diagnosed immediately. This is a transaxle repair.
Yes — Toyota recommends the transaxle fluid check at 60,000 miles. We recommend inspection every 30,000 miles. Unlike a conventional auto, Prius doesn't have a pan to drop — inspection requires a different process.
Yes, we can rebuild the mechanical portion of the Prius transaxle. We do not service the HV battery system — only the gear sets and motor-generators.
Prius engines last 300,000+ miles with oil changes. If the transaxle fails at 200k, a rebuild makes economic sense vs. buying a new car. Our rebuilt Prius transaxles carry a 2-year/24,000-mile warranty.
Same-day appointments available. Honest estimates, no surprises. We've been doing this since 1987.
