IsItAGoodCar
Reliability Guide

Common Problems with the
2023 Suzuki Swace

Mid-cycle upgrade introducing Toyota's fifth-generation hybrid system boosting power to 140PS, Motion and Ultra trim renaming, 10.25-inch infotainment, and full 7-inch digital driver instrument cluster.

What changed for 2023

  • •Power output increased from 122PS to 140PS with a stronger 70kW electric drive motor
  • •Trim structure renamed to Motion and Ultra with standard wireless Apple CarPlay
  • •Upgraded high-definition 10.25-inch central multimedia touchscreen and digital driver binnacle

Common MOT watch-outs

  • !Headlamp beam aim misalignment following electronic control module software updates
  • !Rear brake caliper slide pin stiffness causing slight brake drag on roller tests
3
Known Issues
2
Serious
1
Moderate
0
Minor

All Known Issues

12V Auxiliary Battery Rapid Discharge and No-Start

SeriousElectrics & Electronics

The 12V auxiliary battery located under the boot floor on the Suzuki Swace suffers from accelerated parasitic discharge when the vehicle is parked for more than seven to ten days or used solely for short urban hops. Unlike conventional vehicles with an alternator, the 12V battery is replenished via the hybrid DC-DC converter only when the vehicle is actively in 'READY' mode. Continuous background draw from the smart key receiver and telematics modules pulls the voltage below the threshold needed to boot the hybrid ECUs, resulting in total vehicle immobilization.

Est. Repair Cost: £130–£280
Warning Signs:

Vehicle completely unresponsive with key fob failing to unlock doors, Flashing warning lights on the instrument cluster and hybrid system malfunction message, Inability of the hybrid system to engage 'READY' mode when pressing the power button

What to Inspect:
  • Measure the resting voltage across the auxiliary 12V battery terminals in the boot
  • Power the vehicle into READY mode and check that the charging voltage exceeds 14.0 volts
  • Inspect the battery age and check whether an upgraded AGM unit has been retrofitted
Verified by IsItAGoodCar Research TeamUpdated

Exhaust Heat Recirculation System Coolant Leak

SeriousCooling System

The 1.8-litre 2ZR-FXE hybrid powertrain utilizes an exhaust gas heat recovery (EGHR) heat exchanger integrated into the exhaust manifold to rapidly bring engine coolant up to operating temperature. Over extended heat cycles and corrosive UK winter road spray exposure, microscopic fractures can develop in the internal heat exchanger core. This allows engine coolant to escape directly into the exhaust pipe, causing progressive coolant level drops, sweet-smelling white exhaust vapour on warm restarts, and potential engine overheating if unaddressed.

Est. Repair Cost: £450–£950
Warning Signs:

Unexplained drop in engine coolant expansion tank level without external puddle, Faint sweet syrupy smell and thin white steam from the exhaust tailpipe when warm, Engine temperature gauge creeping above normal or high coolant temperature warning light

What to Inspect:
  • Inspect the pink Super Long Life Coolant level in the translucent expansion bottle
  • Examine the exhaust heat exchanger under the vehicle for pink crusty coolant staining
  • Check service records to confirm whether the revised exhaust heat exchanger has been fitted
Verified by IsItAGoodCar Research TeamUpdated

Rear Brake Caliper Slider Corrosion and Binding

ModerateBrakes

Because the Swace relies heavily on regenerative motor braking for routine decelerations, the hydraulic rear disc brakes see minimal mechanical friction during daily suburban driving. In damp UK road conditions with winter salt application, the sliding guide pins and caliper bracket channels suffer from lack of exercise, leading to rust formation, seized sliders, and uneven pad drag. The dragging rear pads cause premature disc grooving, elevated wheel hub temperatures, reduced fuel efficiency, and MOT test advisories for uneven braking effort.

Est. Repair Cost: £180–£420
Warning Signs:

Deep circular scoring, heavy rust lip, or glazed patches on rear brake disc faces, Excessive brake dust or radiant heat from one rear alloy wheel after a gentle drive, High-pitched metallic squeaking or binding noise during low-speed crawling

What to Inspect:
  • Feel rear wheel hubs carefully after a 15-minute test drive to detect sticking calipers
  • Visually inspect outer and inner rear brake disc faces through wheel spokes for severe pitting
  • Verify the electronic parking brake engages and releases crisply without binding drag
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2023 Suzuki Swace

  • Verify the operation of the digital instrument cluster and ensure no persistent warning icons remain lit
  • Confirm that both original smart key fobs are supplied and test keyless entry on all doors