Has your car experienced rear-camera and electrical problems that undermine your safety and trust in a vehicle you paid good money for? It’s a serious problem when a vehicle repeatedly loses image feed, freezes mid-maneuver, or glitches in the infotainment control unit.
That’s exactly what happened to Alan. Just past 14,000 miles, his instrument cluster alerts started flashing an electrical/non-PCM concern. While in reverse, his rear camera froze, buzzed loudly, and then rebooted. He brought his car in right away, but days later the problem returned — and again the following week.
Each repeat visit the car was in the shop, technicians couldn’t duplicate the issue and created a STAR case testing all connectors and pins. Eventually, they were told to order a new infotainment system altogether.
If you have a lemon car like Alan, you have options under California’s Lemon Law. The first step? As part of your pre-litigation settlement posture, you can write a formal demand letter, including a summary of material defects and manufacturer tech case numbers.
In this article, we walk through how to document your case effectively and why a certified mail with receipt matters.
Assemble the proof
The standard of proof in most lemon law cases is “preponderance of the evidence.” This requires showing that the claim is more likely true than not.
Since manufacturers use tactics to deny or stall claims, you need clear evidence. When you can prove the issue, attempts to repair it, and the impact, you have more leverage to demand relief. If you can’t, you may be denied a refund or your case may be dismissed.
At the least, your documentation should include:
- All repair orders with dates/mileage
- Parts recommendations
- “Cannot reproduce” entries
- Connector/pin inspections
- Total days-in-the-shop log
- Videos/photos of malfunctions like warning lights, reboots, no-start, flicker, charger faults
- Purchase/lease agreement, registration, warranty
- Witness statements
- Tow, rental, rideshare receipts
- Your timeline of dates, miles, defect, result (one line each)
Why certified mail?
When you send your demand letter by certified mail with receipt, you create a paper trail and proof the manufacturer received your letter. Even if the manufacturer refuses to sign for or receive your letter, multiple delivery attempts and a returned envelope can still serve as proof of notification.
This creates a documented timeline, which is important if your case goes to court. It also shows you’re serious and prepared to escalate your actions if necessary.
Draft the demand & set deadlines
How should you draft your demand? While you don’t need to use legal jargon, your letter should clearly explain:
- What the defect is.
- When and how often the problem occurs.
- How it compromises the vehicles’ safety or value.
- What the dealership did (or didn’t do).
- How much time was wasted on repairs.
What to include
Cite Civil Code §1793.2(d)(2) and state what you want: a buyback (repurchase), replacement, or cash-and-keep minus a mileage offset. Under CA lemon law, you also have the right to a civil penalty request. Fee-shifting requires the manufacturer — not the consumer — to pay attorney fees.
Include the VIN, vehicle details, purchase date, current mileage, and a list of itemized restitution. Attach your evidence, including documents, repair orders (ROs), invoices, and dealer notes.
Once the manufacturer receives your demand, they have a 30-day response window to resolve your claim. If they ignore you, delay, or refuse to make a fair offer, your next step: file complaint and take legal action.
Ready to contact a lemon law attorney? You paid for a safe, working car — not endless repairs, excuses, and lost time. Don’t settle for less than what you’re owed.