2017 Lexus RC Problems: 1 Issues Every Owner Should Know
2017 model year · 1,100+ owner reports · Updated May 2026
According to Au7o's analysis of 1,100+ owner reports, the 2017 Lexus RC has 1 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is Carbon Buildup on Intake Valves (2.0T) with 1,100 owner reports. Across all issues, repair costs range from $400 to $800. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2016-2022 Lexus RC 2.0L 8AR-FTS Turbo, the direct-injected 2.0L turbo in the RC200t and RC300 accumulates carbon deposits on the intake valves identically to the IS with the same engine. Without port injection to wash the valves, carbon buildup causes progressive performance degradation starting around 40,000 miles.
Common Symptoms
- Rough idle and engine vibration
- Hesitation on acceleration
- Reduced power output
- Slight misfire feel at low RPM
- Decreased fuel economy
How to Fix
Walnut shell blasting of intake valves every 40,000-60,000 miles. Install an oil catch can to reduce the rate of carbon accumulation. Use top-tier fuel to minimize deposit formation.
What Owners Are Using
Parts and tips from 1,100+ owners who fixed this issue
- UpgradeJLT Performance oil catch can — same recommendation as the IS. The 8AR-FTS engine benefits significantly from catch can installation. (JLT Performance #JLT-3012P)