The 2018 Santa Fe Sport's braking system generates consistent complaints across two main NHTSA recalls: Campaign 22V056000 and 22V810000. The most dangerous pattern is complete brake failure at low speeds—owners describe pressing the brake pedal and the vehicle not slowing at all, forcing swerves and resulting in at least one rear-end collision. Failures are intermittent; brakes often work again after the incident.
ABS modules are failing regularly. One owner had the same module replaced three times within months, each time leaking brake fluid. Dealers confirm the failures, but replacements don't stick. After recall repairs, owners report ABS lights returning within weeks, with independent mechanics diagnosing faulty wheel speed sensors (quoted repair: $300–$600).
The biggest complaint is recall part unavailability. Most complaints describe owners receiving recall notices, calling dealers months later, and being told parts still aren't available. Some owners report receiving a second notice to schedule repair, only to be told the same thing again. Hyundai advised one owner to park the vehicle away from buildings. No timeline for parts is given.
A smaller but alarming subset report engine seizures or fires occurring during or after brake events. One vehicle caught fire at 5 MPH and was destroyed. Another lost all power at 50 MPH with the engine seizing. Owners have not received satisfactory explanations.
Failure modes owners describe
ABS module failure with hydraulic leak
ABS module leaks brake fluid, causing repeated illumination of ABS warning light and traction control warning light. Owners report multiple replacements (up to 3 times) that do not resolve the issue.
When: 77,000 miles; 61,000 miles; 20,000 miles
Symptoms owners cite: ABS warning light illuminates intermittently; Traction control warning light illuminates; Abnormal sound from underneath vehicle; Low voltage controlling module reported by dealer
Repairs/costs cited: ABS module replaced multiple times (3 replacements in one case); dealer confirmed module was leaking brake fluid in at least one case
Recalls/TSBs owners mention: NHTSA Campaign 22V056000 (Service Brakes, Hydraulic) issued; owners report Hyundai refused warranty assistance; one owner states Hyundai USA contact yielded no help
Complete brake failure during driving
Brake pedal becomes unresponsive or soft during city driving, requiring hard pedal pressure or swerving to avoid collisions. One rental resulted in rear-end collision when brakes failed at traffic light. Failures are intermittent and then resolve.
When: Under 100 miles after rental pickup; 35,000 miles; low speeds (5–50 MPH)
Symptoms owners cite: Brake pedal does not respond when pressed; Hard brake pedal on second press; Vehicle continues moving despite full brake pedal pressure; Brakes work again intermittently after failure
Repairs/costs cited: One rental vehicle destroyed; no repairs completed in most cases; one owner advised to approach speed bump to regain brakes
Recalls/TSBs owners mention: NHTSA Campaign 22V810000 referenced by owners; no manufacturer assistance documented for actual brake failures
Wheel speed sensor or hub assembly fault
ABS warning light persists or returns weeks after recall repair completion. Independent mechanics and dealers diagnose faulty speed sensor in wheel hub. One owner reports sensor replacement estimated at $300, full hub assembly at $600+.
When: After recall repair completion; reported at 5,518 miles (early failure); approximately 1 month post-repair in another case
Symptoms owners cite: ABS warning light illuminates or returns after repair; No actual brake failure reported alongside this issue
Repairs/costs cited: Speed sensor replacement estimated $300+; wheel hub assembly replacement estimated $600+; dealers have quoted both parts separately
Recalls/TSBs owners mention: Recall repair (Campaign 22V056000) completed but sensor fault appears post-repair; one owner suspects recall work triggered the sensor failure
Recall part supply delays and unavailability
Massive backlog of owners unable to schedule or complete recall repairs (Campaigns 22V056000 and 22V810000) for extended periods. Multiple owners report being told parts are unavailable despite receiving recall notices months or over a year apart.
When: Delays spanning months to years after recall notice; ongoing at time of complaint
Symptoms owners cite: Unable to obtain appointment for recall; Repeated notification to owners that parts not yet available; Dealers unable to perform work
Repairs/costs cited: No repairs completed; manufacturer advised one owner to park vehicle outside away from structures pending repair
Recalls/TSBs owners mention: NHTSA Campaign 22V056000 and 22V810000 recall issued; parts distribution suspended or delayed indefinitely; one owner reports manufacturer suspended the recall; manufacturer advised parking vehicle away from structures
Engine seizure or engine fire
Engine seizes or catches fire during or after brake-related failures. One owner reports smoke and flames from engine after brake failure at 5 MPH; vehicle destroyed. Another reports loss of power at 50 MPH with engine seizing.
When: 125,000 miles; 170,000 miles; during low-speed brake event
Symptoms owners cite: Engine stalls during driving; Loss of motive power; Smoke from engine compartment; Flames visible from engine; Check engine light, battery light, oil light illuminated
Repairs/costs cited: One vehicle destroyed by fire; other vehicle towed but not repaired; no root cause diagnosis provided
Recalls/TSBs owners mention: Owners referenced Campaign 22V810000 (Service Brakes, Hydraulic); no manufacturer assistance provided; one owner not notified of manufacturer
Intermittent brake warning lights without complete failure
ABS or warning lights illuminate intermittently during normal driving without corresponding brake loss or system malfunction. Independent mechanics unable to replicate issue at dealership. Owners awaiting recall repair parts.
When: 61,000 miles; various mileages; timing unclear in many cases
Symptoms owners cite: ABS warning light flashes intermittently; Warning lights illuminate at undisclosed speeds; No corresponding brake failure reported
Repairs/costs cited: Some vehicles remain unrepaired pending recall; independent mechanics diagnosed defective ABS but no work completed
Recalls/TSBs owners mention: Recall Campaign 22V056000 applicable; dealers confirmed low voltage to module in one case; manufacturer offered no repair timeline
Synthesized from 44 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.