2021 Hyundai Elantra Service and Repair Manual

Hyundai sold the 2021 Elantra with three different powertrains — a turbocharged 1.6L, a 2.0L, and a full hybrid — and this factory service and repair manual is keyed to the exact year, engine and trim of your car, so every specification and sequence it lists is the one Hyundai published for this vehicle rather than an approximation pulled from another Elantra.

Engines covered

• 1.6L inline-four (97 cu in) — DOHC, turbocharged, gasoline
• 2.0L inline-four — DOHC, naturally aspirated, gasoline
• 1.6L inline-four full hybrid (96 cu in) — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Essential
• Limited
• Limited Hybrid
• N Line
• Preferred
• Preferred Hybrid
• SE
• SEL
• SEL Hybrid
• Ultimate
• Ultimate Hybrid

Known issues on the 2021 Elantra. Four recalls are on federal record for this model year. The first covers the windshield: during manufacturing it may not have been properly bonded to the vehicle, and a windshield that detaches during a crash can increase the risk of injury. The second covers the driver and front passenger seat back recliners, which may have been improperly welded — an improperly welded recliner could separate from the seat back frame during a crash. The third and fourth both concern the front seat belt pretensioners: in the event of a crash they may explode, projecting metal fragments into the vehicle. Owners have logged 210 complaints for the year and Hyundai has issued 79 technical service bulletins. The factory diagnostic and repair procedures behind each of those systems are here.

Whether you are checking a seat belt pretensioner, inspecting a seat back recliner weld, or servicing the 1.6L turbo or the hybrid system, it keeps you on the OEM procedure and the correct specification for your specific 2021 Elantra.