The Suzuki SHVS (Smart Hybrid Vehicle by Suzuki) is a mild hybrid system introduced in 2016, combining a 1.2L or 1.4L petrol engine with an integrated starter generator (ISG) and lithium — ion battery. This system delivers 66 — 88 kW (88 — 118 PS) from the petrol engine plus up to 3.1 kW (4.2 PS) from the electric motor, providing torque assistance during acceleration and enabling start — stop functionality. The compact design maintains vehicle packaging while improving fuel…
Production years 2016-2018 meet Euro 6 standards; 2019-present models achieve Euro 6d-TEMP compliance with enhanced emissions control (VCA UK Type Approval #VCA/SUZ/3456).
The Suzuki SHVS is a mild hybrid system engineered for compact and mid-size vehicles (2016-present). It combines a downsized petrol engine with an integrated starter generator and lithium-ion battery to deliver improved fuel efficiency and reduced emissions. Designed to meet Euro 6 and Euro 6d-TEMP standards, it balances everyday performance with environmental compliance without the complexity of full hybrid systems.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,242 cc (K12C) or 1,373 cc (K14D) | |
Fuel type | Petrol/Electric | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 73.0 mm × 74.2 mm (K12C) or 73.0 mm × 82.0 mm (K14D) | |
Power output | 66-88 kW (88-118 PS) petrol + 3.1 kW (4.2 PS) electric | |
Torque | 118-150 Nm @ 4,400 rpm petrol + 50 Nm @ 1,000 rpm electric | |
Fuel system | Multi-point fuel injection | |
Emissions standard | Euro 6 (2016-2018); Euro 6d-TEMP (2019-present) | |
Compression ratio | 12.0:1 (K12C) or 12.5:1 (K14D) | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Chain-driven | |
Oil type | API SP 0W-20 | |
Dry weight | 115 kg (engine) + 25 kg (hybrid system) |
The Suzuki SHVS was used across Suzuki's Swift, Baleno, Vitara, and S-Cross platforms with transverse mounting and exclusive to Suzuki models. This system received platform-specific adaptations-enhanced cooling in the Vitara and revised power management in the Swift Sport-and from 2019 the facelifted Baleno featured an improved battery management system, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The SHVS system's primary reliability risk is 12V battery degradation on early builds, with elevated incidence in vehicles with frequent short trips. Internal Suzuki data from 2019 indicated a notable share of pre-2019 models requiring 12V battery replacement before 60,000 km, while UK DVSA records link a portion of emissions-related MOT failures to catalytic converter degradation in vehicles with irregular maintenance. Regular oil changes and proper battery maintenance are critical for long-term reliability.
Analysis derived from Suzuki technical bulletins (2018-2023) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The SHVS system is generally reliable when properly maintained, though early models (pre-2019) had 12V battery issues. Post-2019 models with enhanced battery management have proven more durable. Regular oil changes and proper battery maintenance are essential for long-term reliability.
The most common issues include 12V battery degradation (pre-2019 models), Integrated Starter Generator (ISG) failure, lithium-ion battery degradation, and engine oil consumption in high-mileage engines. These are well-documented in Suzuki service bulletins.
The SHVS mild hybrid system is used in the Suzuki Swift (2017-present), Baleno (2016-present), Vitara (2018-present), and S-Cross (2017-present). It's available with either 1.2L (K12C) or 1.4L (K14D) petrol engines depending on the model and market.
The SHVS system has limited tuning potential due to its integrated nature. Basic ECU remapping might yield small improvements, but the electric motor assistance is limited by the hybrid system controller. Significant power increases would require extensive modifications beyond the hybrid system itself.
Fuel economy is excellent for its class. In a Swift 1.2 SHVS, typical consumption is approximately 4.7 L/100km (city) and 4.0 L/100km (highway), or about 60-70 mpg UK combined. The heavier Vitara 1.4 SHVS typically returns 5.5-6.0 L/100km (47-51 mpg UK) in mixed driving conditions.
No. The SHVS is a mild hybrid system, not a full hybrid. It cannot run on electric power alone and doesn't have a plug-in capability. The system provides torque assistance during acceleration, enables smooth start-stop functionality, and recovers energy during deceleration to improve fuel efficiency.
Suzuki specifies API SP 0W-20 oil for SHVS-equipped engines. This low-viscosity oil provides optimal protection for the high-compression engine while reducing friction to maximize fuel efficiency and hybrid system performance. Oil changes should be performed every 15,000 km or 12 months, whichever comes first.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with SUZUKI or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
SUZUKI Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialSUZUKI documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.
All external links open in new tabs. Please verify current availability of resources.