If you’re shopping for a car in California, there’s a new reason to slow down before you sign.
Starting October 1, 2026, California’s Combating Auto Retail Scams (CARS) Act changes what licensed dealers must tell consumers about vehicle prices, financing and add-on products. For qualifying used-vehicle purchases, it also creates a new three-day cancellation right.
The law applies to licensed California dealers selling or leasing light-duty vehicles under 10,000 pounds, with important exceptions. California DMV’s CARS Act guide lays out the rules for consumers.
The practical takeaway is simple:
Don’t look only at the advertised price or monthly payment. Look at the total deal.
Before You Sign: Your California Car-Buying Checklist
1. Check the total price
When a dealer advertises a specific vehicle or makes an initial written communication about a specific vehicle or financing terms, the CARS Act requires the total price to be disclosed.
The rule is intended to give buyers a clearer number earlier in the process, rather than having important pricing information emerge only after negotiations begin. The DMV says the total price must appear clearly and conspicuously in the applicable advertisement or first written communication. (California DMV)
Ask:
“What is the total price of this vehicle?”
Get the answer in writing.
2. Don’t shop by monthly payment alone
A low monthly payment can sound affordable while costing more over the life of the deal.
The CARS Act requires dealers to provide additional information when they make certain representations about financing, including the total amount a consumer would pay if payments are made as scheduled. The law also addresses representations involving down payments and trade-ins. The California statute is more detailed than the average buyer needs to be, but the practical question is easy:
“How much will I pay altogether?”
That’s a more useful number than the monthly payment by itself.
For families already trying to make every monthly dollar stretch, the difference matters. This issue on the broader affordability pressure our community is feeling is further explained in or reporting of California’s cost-of-living squeeze.
3. Ask what the add-ons actually are
Extended warranties, GAP coverage, theft protection and other products can appear during the buying process.
The new rules require certain add-on products to be identified as optional in writing before the buyer signs. Dealers also cannot charge for certain products that provide no meaningful benefit to the consumer.
Ask:
“Is this optional, and can I buy the car without it?”
If you’re negotiating primarily in a language covered by California’s existing language-disclosure requirements, the law also contains language-specific disclosure requirements.
4. Buying a used car? Check whether you have the three-day cancellation right
This is one of the biggest changes for consumers.
For a qualifying used vehicle valued at $50,000 or less, California now provides a three-day right to cancel the purchase. The cancellation period includes weekends, and conditions can apply, including mileage and a possible restocking fee.
But there’s an important catch:
This is not a universal three-day return policy for cars.
The exceptions matter
The three-day cancellation protection does not apply to every vehicle or every transaction.
Among the important limitations:
- It applies to qualifying used vehicles, not every car purchase.
- New vehicles do not receive this general three-day cancellation right.
- The used vehicle must be valued at $50,000 or less.
- Certain auction transactions are excluded.
- The law also contains exemptions for certain wholesale transactions, fleet sales and commercial purchasers.
- Mileage and restocking-fee conditions can apply.
California DMV’s Car Buyer’s Bill of Rights provides additional information about the cancellation process and other protections.
Don’t sign assuming you can simply bring the car back because you changed your mind. First make sure your vehicle and transaction qualify.
5. Save the advertisement and written communications
The new rules make the dealer’s written communications especially important.
Save screenshots of the vehicle advertisement, emails and texts you receive. If the advertised price changes when you arrive at the dealership, stop and ask why.
That documentation can also matter if you later need to challenge what you were told.
The DMV’s consumer guidance for the CARS Act explains how consumers can file complaints when they believe a dealer has violated applicable requirements.
What the new law does and doesn’t do
The CARS Act is designed to increase transparency around vehicle pricing and financing and prohibit certain dealer misrepresentations.
It does not mean:
- every car can be returned within three days;
- every dealer fee disappears;
- every add-on is prohibited;
- every vehicle qualifies for cancellation; or
- a buyer can automatically cancel a new-car purchase.
Before you sign, check:
☐ Advertised price — What price brought you to the dealership?
☐ Total price — What will the vehicle actually cost?
☐ Financing — What is the total amount you’ll pay?
☐ Add-ons — Which products are optional?
☐ Cancellation — If it’s a qualifying used vehicle, do you have the three-day right?
☐ Exceptions — Does your vehicle or transaction fall outside the protection?
☐ Paperwork — Does the contract match what you were told?
Buying a car is one of the biggest purchases many households make. And as Parriva has reported in its coverage of California household costs and transportation expenses, the cost of owning a vehicle doesn’t stop when you leave the dealership.
The new CARS Act doesn’t mean you need to become a lawyer before buying a car.
It does give you another reason to slow down, ask for the numbers in writing and understand the deal before you sign.
