BatteryMedium
Hybrid battery degradation on high mileage cars
- Typically appears
- 120,000+ miles
- What to inspect
- Get a hybrid health check before purchase
2013–2022 Lexus IS · common problems & known faults
A dependable executive saloon where the hybrid drivetrain outlasts most rivals.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2013–2022 Lexus IS are Electric water pump failure or leakage on the 2.5L hybrid engine, Hybrid battery degradation on high mileage cars and Rear disc corrosion from regen use. 1 of the documented issues are rated high severity · inspect these first. Full inspection points, onset mileage and what to check are listed below.
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Build the inspection planReliability snapshot
Based on the documented faults on this page for the Lexus IS.
6.0/ 10
- Critical
- 0
- High
- 1
- Medium
- 4
- Low
- 3
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
BrakesMedium
Rear disc corrosion from regen use
- Typically appears
- 30,000+ miles
- What to inspect
- Inspect discs for pitting and scale
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Build the inspection planSuspensionLow
Damper and bush wear
- Typically appears
- 90,000+ miles
- What to inspect
- Check for weeping dampers and knocks
BodyLow
Kerbed alloys and parking damage
- Typically appears
- Age-related
- What to inspect
- Inspect wheels and bumper corners
Interior / ElectronicsMedium
Infotainment screen delamination or continuous system rebooting.
- Typically appears
- 50,000-80,000 miles
- What to inspect
- Turn on the ignition and examine the central display for air bubbles or peeling under the glass. Test the rotary dial to ensure the system does not freeze or reboot.
Body / InteriorMedium
Water ingress into the boot and 12v battery tray due to perished rear pressure relief vents.
- Typically appears
- 60,000-90,000 miles
- What to inspect
- Lift the boot floor carpet and inspect the 12v battery well on the left side, plus the spare wheel well, for standing water, dampness, or a musty smell.
Engine / CoolingHigh
Electric water pump failure or leakage on the 2.5L hybrid engine.
- Typically appears
- 80,000-120,000 miles
- What to inspect
- Open the bonnet and shine a torch down the front of the engine block. Look for pink, crusty coolant deposits around the pump housing and listen for a high-pitched bearing whine.
Climate ControlLow
HVAC blend door servo motor failure causing unequal cabin temperatures.
- Typically appears
- 70,000-110,000 miles
- What to inspect
- Start the engine, set the dual-zone climate control to maximum heat on one side and maximum cold on the other. Swap the settings and listen for rapid clicking behind the dashboard.
Inspecting a Lexus IS?
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Build my inspection planFrequently asked questions
Are they genuinely reliable?
Yes, among the most dependable used executive saloons.
What should I check?
Hybrid health and brake disc condition.
Do they sell fast?
Yes to private buyers looking for low running costs.
Does it need a main dealer service history to maintain the hybrid warranty?
Yes, to benefit from the Lexus Relax warranty and the extended 15-year hybrid battery cover, the car requires an annual service and Hybrid Health Check at a franchised Lexus dealer. Independent servicing voids these manufacturer guarantees, which significantly impacts the retail value on the forecourt.
Which engine variant is the most desirable for the UK market?
The IS 300h hybrid heavily dominates the UK market due to its low emissions, excellent fuel economy, and favourable company car tax bands. The IS 250 V6 is exceptionally smooth but penalised by high road tax, while the turbocharged IS 200t remains rare and less sought-after by typical buyers.
Are the F Sport models worth a premium over the standard trims?
F Sport models command a noticeable premium and are highly requested by buyers. They feature aggressive styling, LFA-style digital dials, and supportive sports seats. However, dealers should note that the firmer suspension setup and larger staggered alloy wheels slightly compromise the ride quality compared to Luxury or Premier specifications.
Sources & further reading
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.
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