KNOWN FAULTS · Toyota

Toyota C-HR (II) 1.8 / 2.0 Hybrid common problems.

2023–2026 · Hybrid

Sources are not verified in real time and no entry confirms that your car is affected.

3 known faults with sources

Applies if: The Toyota USA bulletin does not list this model, but its hybrid battery is also cooled with cabin air through a filter.

Clogged hybrid battery cooling fan and filterHigh-voltage battery

Engine / equipment: Hybrid battery cooled with cabin air (intake next to the rear seat): Prius, Yaris, Auris, Corolla, C-HR, RAV4, Camry and others
Period mentioned: 2003 onwards
Symptoms: Hybrid battery cooling maintenance message, warning light with codes P0A80 or P0A7F, a noisy fan and less electric assistance; if ignored, the battery ages faster.
Possible cause described: Dust, pet hair or dirt block the filter and fan that cool the battery; so do objects covering the intake. Toyota USA issued bulletin T-SB-0074-20 (2003–2020 Prius and Camry, Corolla, Highlander, RAV4 and Mirai hybrids up to 2020) and recommends cleaning the filter every 5,000 miles (about 8,000 km).
Check for the garage: Clean or replace the filter and clean the fan before condemning the battery; keep the intake grille clear. At the garage, read the codes and, if needed, install the software Toyota specifies.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Applies if: The same campaign 25SD-063 (Rapex alert 33/2025) covers the C-HR built from 2022 to 2025; confirm by VIN.

Instrument cluster that goes blank because of its memory (Yaris and Yaris Cross)Electrical and electronic systems

Engine / equipment: Toyota Yaris and Yaris Cross
Period mentioned: 2022–2025
Symptoms: The cluster goes black: the speedometer and warning lights cannot be seen.
Possible cause described: A 2025 Rapex alert (Toyota campaign 25SD-063, about 900,000 cars of several models worldwide) says a programming flaw wears out the instrument-cluster memory and the display may stop working.
Check for the garage: Check campaign 25SD-063 by VIN at a Toyota dealer.
Cost cited in the source: Free under the recall.A rough figure from the original database, not an up-to-date quote.

Applies if: Only the 2.0 Hybrid (M20A-FXS), not the 1.8. Toyota USA bulletin for the same engine.

Milky oil and low oil-pressure warning in freezing weather (Toyota 2.0 M20A and 2.5 A25A engines)Engine

Engine / equipment: Petrol 2.0 (M20A-FKS), 2.0 hybrid (M20A-FXS) and 2.5 hybrid (A25A-FXS): Corolla, Corolla Cross, C-HR, RAV4 and Camry
Period mentioned: 2018–2024
Symptoms: In sub-zero temperatures with many short trips: milky or discoloured oil on the dipstick and under the filler cap, an “Oil Pressure Low” message on the instrument panel and the engine warning light. Codes P05202A (oil pressure sensor stuck) and P052477 (oil pressure too low).
Possible cause described: According to Toyota USA bulletin T-SB-0104-21, moisture from the blow-by gases condenses and builds up in the oil on short trips in extreme cold; when that moisture freezes, oil pressure can drop and the warnings appear. The same milky look appears if coolant mixes with the oil through an internal leak, which is a different and more serious fault.
Check for the garage: With the oil-pressure warning, stop the engine and do not carry on until it is checked. The garage first pressure-tests the cooling system to rule out an internal leak; if there is none, it changes the oil and filter, wipes the milky residue off the cap and checks with the engine warm (coolant at about 50 °C) that the warning and codes do not come back. If they do, the diagnosis must continue with the workshop manual.
Cost cited in the source: An oil and filter change if there is no internal leak; the bulletin does not cover it under warranty.A rough figure from the original database, not an up-to-date quote.