My New Car Shakes or Vibrates at Highway Speed. Is It a Lemon?

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

The Short Answer

Signs Your Vibration Problem May Qualify

• The car shakes through the steering wheel, seat or floor at certain speeds
• The dealer balanced or replaced tires, or replaced parts, and the vibration returned
• The vibration gets worse when braking, accelerating or turning
• It comes with a noise, a pull to one side or a warning light
• You have been to an authorized dealer for it at least twice
• The car is under the new car warranty, or the vibration began while it was

What a Highway Vibration Can Mean

A new car should feel smooth at freeway speed. When it starts to shimmy, shake or buzz, something is out of balance, out of round, loose or wearing wrong. Common sources include wheels and tires, wheel bearings, axles or the driveshaft, suspension parts, brake rotors, and engine or transmission mounts. In electric cars, a drive unit can cause a vibration too.

Where you feel it gives clues. A shake in the steering wheel often points to the front wheels, tires or brakes. A vibration in the seat or floor may come from the rear wheels, the driveshaft or the drivetrain. A shake only when braking often points to brake rotors. A vibration that rises and falls with engine speed instead of road speed may come from the engine or mounts.

You do not have to figure this out yourself. Under California case law, the buyer does not need to prove the exact technical cause of a defect (Oregel v. American Isuzu Motors, 2001). Your job is to report it clearly and give the dealer a chance to fix it.

A vibration that changes over time is worth noting. Many defects start as a faint buzz at one speed and grow into a shake across a wider range. If you notice it getting worse, write down the date and the new speed range, and book a visit. The repair orders should show that progression.

Can a Vibration Be a Lemon Law Defect?

California's lemon law, the Song-Beverly Consumer Warranty Act (Civil Code 1790 and following), covers a warranty defect in a new or leased vehicle that substantially impairs its use, value or safety, when the manufacturer or its dealers cannot fix it after a reasonable number of attempts. A vibration that makes highway driving tiring or unnerving affects use. A car known to shake is worth less. And a vibration from a failing axle, loose suspension part or warped brake rotor can affect how the car steers and stops.

Civil Code 1793.22(b), the Tanner Act presumption, looks at the first 18 months or 18,000 miles, whichever comes first. Within that window, the manufacturer is presumed to have had a reasonable number of attempts if the same defect was repaired four or more times, or the car was out of service more than 30 total days. If the vibration comes from a defect likely to cause death or serious bodily injury, two attempts can be enough. The repair-count paths also depend on direct notice to the manufacturer when the owner's manual clearly requires it.

If the standard is met, the manufacturer must replace or repurchase the car, and the buyer may choose a buyback (Civil Code 1793.2(d)(2)).

When the Dealer Blames the Tires

Vibration complaints often end with the dealer saying the tires are the problem. Sometimes that is true. Tires can be out of round or have a belt that shifted. Dealers sometimes add that the tires are covered by the tire maker's own warranty rather than the vehicle warranty, and send you to a tire shop.

Handle this carefully. Ask the dealer to write their findings on the repair order, including any balance or road force measurements and what they think is wrong. If they replace or rebalance the tires and the vibration continues, that is strong evidence the problem is somewhere else. If they send you to a tire shop, keep that paperwork, but also come back to the dealer when the vibration returns.

Remember that repairs at an independent shop, or done yourself, do not count as repair attempts under the lemon law. A tire shop visit can help rule out the tires, but the record that matters most is what the authorized dealer did and found.

If the car came from the factory with the tires it still has, mention that. A dealer may say the vibration is a tire defect. If the vibration continues after the tires are replaced, that is a strong sign of another cause. Keep the old and new tire paperwork together.

What to Tell the Service Advisor

A vibration is easy to describe badly. 'It shakes sometimes' gives a technician little to work with. Be specific, and ask that your description be copied onto the repair order.

Bring the car in when the vibration is present, not after a stretch of city driving where you cannot feel it. If you have a regular freeway route where it always happens, tell the advisor the route so the technician can drive the same road.

• The speed range: 'starts around 62 mph, worst at 70, smooths out at 80.'
• Where you feel it: steering wheel, seat, floor, pedals or the whole car.
• When it happens: steady cruising, braking, accelerating, turning or on certain road surfaces.
• Other symptoms: a hum, a clunk, a pull, uneven tire wear or a warning light.
• How long it has been going on, and whether it is getting worse.
• That you are willing to ride along so the technician feels what you feel.

Repairs That Count, Including Software and Recalls

Each authorized dealer visit for the vibration can count as a repair attempt, whether the dealer balanced the wheels, replaced tires, swapped an axle, replaced mounts, resurfaced or replaced rotors, or found nothing. Visits where the dealer could not find or fix the problem can still count.

Software is less common in vibration repairs but does happen, for example when an engine or electric motor control update is used to smooth out a shudder. As a firm, we treat a software update, including an over-the-air update, as a repair attempt that can count when it was done to address the reported defect.

Check your VIN for recalls on the NHTSA site. Because a recall is a manufacturer safety repair program, the recall work can count as a repair attempt. A technical service bulletin is a repair instruction to dealers for a known issue, not a safety recall. If either one applies to the parts involved, ask that the repair order say so.

If the dealer needs to order parts such as an axle or a set of rotors, ask how long it will take and whether you can have a loaner. Repairs generally must be finished within 30 days unless you agree otherwise (Civil Code 1793.2(b)), and the days the car is out of service count.

Example: A Shake That Survived Four Sets of Fixes

Imagine a made-up owner to see how this works in practice. Mei bought a new sedan in Irvine. At around 3,000 miles, she noticed a shake in the steering wheel between 65 and 75 mph on the freeway. Her passenger recorded a video showing the wheel trembling.

On the first visit, the dealer balanced the tires. The shake came back within a week. On the second visit, the dealer did a road force balance and replaced two tires. On the third, after Mei mentioned the shake got worse when braking, the dealer replaced the front rotors. On the fourth, after a ride-along, the technician replaced a front axle and noted 'vibration verified at 70 mph.' It returned again.

Mei called a lemon law attorney with four repair orders and her video. The attorney reviewed her contract and history and contacted the manufacturer. This example shows how a vibration complaint can be documented over several visits. It does not suggest any result.

The detail that helped most was consistency. Every order listed the same speed range and the same complaint, so it was clear one problem kept returning.

Mei also avoided a common trap. When the dealer suggested she try a tire shop, she went, but she brought the tire shop's notes back to the dealer on her next visit. That kept the authorized dealer in charge of the repair and kept every attempt on the record.

She also kept every tire receipt in the same folder as her repair orders, so anyone reviewing the file could see the full sequence in one place.

Refunds, Offsets and Attorney Fees

If the manufacturer repurchases the vehicle, restitution is the actual price paid or payable, including collateral charges like sales tax, license and registration fees, plus incidental damages such as reasonable repair, towing and rental car costs (Civil Code 1793.2(d)(2)(B)). If you paid for tires or alignments because of the defect, keep the receipts. The manufacturer can subtract a mileage offset based on miles driven before you first reported the vibration (Civil Code 1793.2(d)(2)(C)). Every case is different.

A winning buyer recovers attorney fees, costs and expenses from the manufacturer under Civil Code 1794(d). Our clients never pay us out of pocket, and if the case is lost, they owe us nothing.

Keep making your loan or lease payments, keep up with scheduled maintenance, and keep driving within what the dealer says is safe. If the shake suddenly gets worse, stop and have the car checked right away.

Act before the warranty runs out. Warranty claims are generally subject to a four-year statute of limitations (Commercial Code 2725), and the timing rules can be technical. A short call to a lemon law attorney can tell you where you stand.

What to Do Next

1. Note the speed range where the vibration starts and stops, and whether you feel it in the wheel, seat or floor.
2. Have a passenger record a short video of the steering wheel or a cup of water on the console at that speed.
3. Ask the dealer to road test the car at that speed and to write 'vibration at 65 to 75 mph, felt in steering wheel' or whatever matches your experience.
4. Ask what was measured or replaced, such as wheel balance, road force, tires, axles or mounts, and make sure it is on the order.
5. Keep every repair order and tire receipt together.
6. Call 877-536-6620 for a free case review and talk with an attorney.

Key Facts (as of October 2026)

• The Tanner Act presumption (Civil Code 1793.22(b)) applies within 18 months or 18,000 miles after four repairs of the same problem or more than 30 cumulative days out of service.
• Incidental damages such as reasonable repair, towing and rental car costs are part of restitution (Civil Code 1793.2(d)(2)(B)).
• Tip: a short passenger video of the steering wheel at the speed where the shake starts helps the dealer and your attorney see the problem.

Talk to a Lemon Law Attorney Today

You speak directly with an attorney. 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 honestly whether you have a case. The review is free. You pay $0 out of pocket: the manufacturer pays the attorney fees when you win, and if we lose, you owe us nothing.

What Our Clients Say on Google

“Jacob was sharp, responsive, and honest about what to expect. He communicated with Audi directly so my parents didn't have to deal with any of it, and the case moved fast.”

Joshua G. · 2024 Audi Q5 hybrid · 5-star Google review

“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

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

FAQ

Does a tire balance count as a repair attempt?

A balance or tire replacement done by an authorized dealer for your vibration complaint can count. Work done at an independent tire shop does not count as a repair attempt under the lemon law.

My car only shakes when I brake on the freeway. Is that a safety issue?

It can be, since it may point to brake rotors or front end parts. Report it right away and describe it as a braking vibration on the repair order.

Can an alignment problem make my car a lemon?

A simple alignment issue is usually fixed easily. If the car keeps going out of alignment or the vibration continues after repeated repairs, that pattern may point to a defect.

What if the vibration started after I installed new wheels?

Aftermarket wheels or tires can give the manufacturer an argument about the cause. Tell your attorney, and consider testing with the original wheels if you still have them.

Sources and Official References

• California Civil Code section 1793.2 (California Legislature)
• California Civil Code section 1793.22 (California Legislature)
• California Civil Code section 1794 (California Legislature)
• NHTSA recall lookup by VIN

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.