Hyundai vs Kia Lemon Law Problems: What California Owners Report

Published October 19, 2026 · Updated October 19, 2026 · California lemon law

Which has more lemon law problems in California, Hyundai or Kia?

Side-by-Side Comparison

What California Hyundai Owners Report

California owners of 2019 to 2027 model year Hyundais filed 1,104 NHTSA complaints between 2021 and 2026. The electrical system was by far the most-reported area with 294 complaints. The engine was second with 163, then brakes (99), collision warning and driver-assist systems (79), and the transmission and powertrain (78).

The Ioniq 5 led all Hyundai models with 278 complaints, which is about one in four Hyundai reports in this data. That is a lot for one electric crossover. The Palisade (134), Tucson (115), Elantra (94) and Santa Fe (78) followed.

The city list includes an Inland Empire entry. Los Angeles had 60 complaints and San Diego 59, then Riverside (22), Sacramento (19) and San Francisco (16). Riverside ranking third is a reminder that lemon law problems are not limited to the biggest coastal cities.

Because the Ioniq 5 is so prominent, some of Hyundai's electrical complaints likely come from EV owners describing charging, battery or power issues in electrical terms. That is a reasonable guess from the data, not a finding. Each owner's own repair orders show what was actually wrong.

• Electrical system: 294 complaints
• Engine: 163 complaints
• Brakes: 99 complaints
• Collision warning and driver-assist systems: 79 complaints
• Transmission and powertrain: 78 complaints

What California Kia Owners Report

Kia owners in California filed 892 NHTSA complaints for the same model years and filing period. Like Hyundai, the electrical system led, with 175 complaints. The engine was close behind with 156. The transmission and powertrain had 86, lights, cameras and visibility had 69, and brakes had 53.

The engine number stands out when you compare it to the electrical number. For Kia, the two are nearly even. For Hyundai, electrical complaints are almost double engine complaints. One likely reason is model mix: Kia's most-reported models in this data are mostly gas-powered SUVs, while Hyundai's top model is electric.

The Telluride was the most-reported Kia with 173 complaints. The Sorento had 106, the EV6 81, the Soul 64 and the Forte 51. Kia's electric model ranks third, not first, which is a clear contrast with Hyundai's list.

San Diego had the most Kia complaints (43), slightly ahead of Los Angeles (41). Sacramento (24), San Jose (19) and Riverside (14) completed the top five. Riverside shows up on both brands' lists.

Lights, cameras and visibility (69) is a Kia category that does not appear in Hyundai's top five. Complaints in this area can involve headlights, backup cameras, mirrors or wipers. Some of these, like a backup camera that goes dark, can raise safety questions as well as convenience ones.

Two Brands, Two Different Companies on the Claim

Hyundai and Kia vehicles often share engineering, and many shoppers compare them side by side. For a California lemon law claim, though, the company you name depends on which brand issued your warranty. For a Hyundai, that is usually Hyundai Motor America. For a Kia, it is usually Kia America, Inc.

That matters for small but important steps. If your warranty booklet or owner's manual clearly asks you to notify the manufacturer directly, send that notice to the right company. Notice to the wrong brand's customer line may not help you. Keep a copy of the letter or email and any case number you receive.

Warranty repairs for both brands run through franchised dealers. A Hyundai dealer cannot do warranty work on a Kia, and the reverse is also true, even when the vehicles share parts. Your repair history will come from dealers of your own brand.

The core rule is the same for both. If the manufacturer or its dealers cannot fix a warranty defect that substantially impairs use, value or safety after a reasonable number of attempts, it must replace or repurchase the vehicle, and you get to choose a buyback instead of a replacement (Civil Code 1793.2(d)(2)).

EV Problems on the Ioniq 5 and EV6

The Ioniq 5 (278 complaints) and EV6 (81 complaints) are the electric models in this comparison. EV problems often show up as warning messages, charging that stops or will not start, reduced power, or a vehicle that will not move at all. Some of these are safety issues and some are not.

A loss of drive power while moving, or a car that will not respond to the accelerator in traffic, can be a defect likely to cause death or serious injury. Within 18 months or 18,000 miles, 2 repair attempts for that kind of defect can be enough to presume a reasonable number of attempts (Civil Code 1793.22(b)). A charging port that fails in your garage is more likely to follow the 4-attempt or 30-day path.

EV repairs can take a long time when a part is back-ordered. The manufacturer must complete repairs within 30 days unless you agree otherwise (Civil Code 1793.2(b)). Ask the dealer to write the date the vehicle arrived and the date it was ready on every repair order, and keep your own calendar as a backup.

If you paid for a rental, a tow or public charging because of the defect, keep the receipts. Restitution can include incidental damages like reasonable towing and rental costs.

Engine Complaints and the 4-Attempt Rule

The engine is the second most-reported area for both brands, with 163 Hyundai complaints and 156 Kia complaints. Engine problems vary widely. Oil consumption, knocking, check engine lights, rough idle and stalling are all common descriptions.

Not every engine problem is a safety defect. A check engine light that keeps returning may be annoying and may lower the car's value, but it may not be likely to cause serious injury. For that kind of problem, the presumption usually needs 4 repairs of the same defect or more than 30 days out of service within 18 months or 18,000 miles.

Stalling is different. An engine that shuts off while you are driving can be a serious safety risk. If that happens, tell the dealer exactly when and where it happened and make sure the repair order says the engine stalled while driving.

Outside the 18-month or 18,000-mile window, you can still have a claim if the defect first showed up while the car was under warranty. The presumption is one way to prove a case, not the only way. A lemon law attorney can look at your full history and tell you how the law likely applies.

Example: A Telluride With a Backup Camera That Keeps Failing

This example is invented to show how the process works. It is not about a real person. Rosa bought a new Telluride in Riverside. At 9,000 miles, the backup camera started going black and the screen showed a camera error.

The dealer reset the system on the first visit. When it failed again, the dealer replaced the camera. A third visit found a wiring issue in the tailgate, and that repair took nine days because of a parts delay. After the fourth failure, Rosa asked whether the problem could ever be fixed.

Rosa kept each repair order, saved photos of the error screen, and sent a written notice to Kia America, Inc. using the address in her owner's manual. She also kept receipts for two days of rental car use while her SUV was in the shop.

During her free case review, the attorney counted four repair attempts for the same defect inside 18 months, which fits one path to the presumption. The attorney also reviewed whether a backup camera failure is a safety issue. Rosa kept making her loan payments the whole time.

Documents to Gather for a Hyundai or Kia Claim

Before you call, collect the paperwork that shows what you bought, what went wrong, and how many times you asked for help. You do not need everything to start. An attorney can often request missing repair records from the dealer.

If you win, the manufacturer pays your attorney fees and costs (Civil Code 1794(d)), so a free case review costs you nothing. Warranty claims generally must be filed within four years (Commercial Code 2725), and timing rules are technical, so ask early.

Put the repair orders in date order and highlight the lines where you described the problem and where the technician wrote what they did. That makes it easy to see how many visits were for the same defect. If the dealer printed a technical service bulletin number, note it, because a TSB shows the manufacturer had issued repair instructions for a known issue.

If the manufacturer has opted in to the 2025 pre-lawsuit rules, your attorney may need to send written notice and exchange documents early for many claims (Code of Civil Procedure 871.20). Having your file organized from the start helps that go smoothly. Keep making loan or lease payments during the claim, since missed payments can hurt your credit.

• Purchase or lease contract and any warranty booklet
• Every repair order, including "no problem found" visits
• Written notice sent to Hyundai Motor America or Kia America, Inc.
• Photos or videos of warning messages
• Rental, towing and charging receipts
• Recall notices for your VIN from the NHTSA lookup

Signs Your Hyundai May Qualify

• Your Hyundai has been in for the electrical system 2 or more times and it is a safety issue
• The same Hyundai problem has been repaired 4 or more times
• Your Hyundai has been out of service more than 30 days for warranty repairs
• You own a Hyundai Ioniq 5 and the problem keeps coming back

Signs Your Kia May Qualify

• Your Kia has been in for the electrical system 2 or more times and it is a safety issue
• The same Kia problem has been repaired 4 or more times
• Your Kia has been out of service more than 30 days for warranty repairs
• You own a Kia Telluride and the problem keeps coming back

Key Facts (as of October 2026)

• Complaint counts are California owner reports to NHTSA for 2019 to 2027 model years, filed 2021 to 2026. They are not verified defects and are not adjusted for sales.
• Both brands' most-reported areas include the electrical system and engine.
• For either brand, a reasonable number of repair attempts is presumed within 18 months or 18,000 miles after 2 tries for a serious safety defect, 4 tries for the same defect, or more than 30 days in the shop (Civil Code 1793.22(b)).

Talk It Through With a Lemon Law Attorney

Every case is different. Our attorneys, listed in firm order: #1 Jacob Shayesteh (founding attorney), #2 Armig Khodanian and #3 Kamau Edwards, will look at your repair history and tell you which option fits. 5.0 stars on Google from 77 reviews (October 2026). You pay $0, win or lose.

What Our Clients Say on Google

“Jacob Shayesteh picked up the phone himself, which already blew me away. He knew exactly what was going on with my situation, explained the entire California lemon law process in plain English, and handled absolutely everything on my end.”

Brenda E. · 2024 Jeep Wrangler · 5-star Google review

“He helped me obtain all of my repair records and purchase documents through the vehicle's app within the hour and officially started my California Lemon Law case the same day. The entire process was straightforward and stress-free, and I never had to deal directly with the manufacturer.”

Miki B. · Lemon law client · 5-star Google review

“My husband spoke with Jacob directly, and the process could not have been easier. He handled everything from start to finish and was able to secure a full buyback for the family.”

Jen B. · Family vehicle · 5-star Google review

Read all 78 reviews on Google (5.0 stars, October 2026). Reviews describe past clients' experiences; every case is different.

FAQ

Is it harder to win a lemon law case against Hyundai or Kia?

The legal test does not change by brand. For a Hyundai or a Kia, the strength of a claim comes from documented repair visits and how the defect affects use, value or safety.

What do California Hyundai owners complain about most?

In NHTSA complaints from California owners, the top areas are the electrical system, engine and brakes. The most complaints were for the Hyundai Ioniq 5, Hyundai Palisade and Hyundai Tucson.

What do California Kia owners complain about most?

In NHTSA complaints from California owners, the top areas are the electrical system, engine and transmission and powertrain. The most complaints were for the Kia Telluride, Kia Sorento and Kia EV6.

Sources and Official References

• NHTSA recall lookup by VIN
• NHTSA, report a vehicle safety problem
• California Civil Code section 1793.2 (California Legislature)
• California Civil Code section 1793.22 (California Legislature)
• California Commercial Code section 2725 (California Legislature)

Laws change. This page reflects California law as of October 2026 and was reviewed by Jacob Shayesteh, Esq.

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Attorney advertising. Wynn Law Group, APC, 10850 Wilshire Blvd, Suite 1010, Los Angeles, CA 90024. General information, not legal advice. Results vary. Prior results do not guarantee a similar outcome.