Almost every horror story about extended warranties traces back to the same thing: the buyer never read the exclusions, and found out what they meant on the worst possible day. Here's what to look for, in the order that matters.
You don't need to read all forty pages. You need to read four sections: What Is Not Covered, Limits of Liability, Your Responsibilities, and Cancellation. And you need to know what you're looking for in each. That's a ten minute job.
1. Consequential damage
This is the one that catches the most people. Most contracts cover a covered part when it fails, but not damage that part causes to other parts.
Example: a water pump fails, the engine overheats, and the head gasket goes. Some contracts pay for the water pump and deny the engine damage as consequential. That's a $300 payout on a $4,000 repair.
What to look for: language about "consequential," "resulting," or "secondary" damage in the exclusions section. Better contracts cover consequential damage to other covered parts. Ask the question directly and get the answer in writing.
2. Labour rate caps
Buried in Limits of Liability, many contracts cap what they'll pay per hour of labour. If your contract caps at a rate below what shops in your area actually charge, you pay the difference on every single claim, quietly and forever.
What to look for: a stated maximum hourly labour rate, and whether it's tied to a published labour guide. Then call your usual shop and ask what they charge. If the cap is meaningfully lower, that's a real cost you should factor into the price.
3. Betterment clauses
A betterment clause says that if a repair leaves your car in better condition than before (a new part replacing a worn one), you pay a share proportional to the wear.
In practice this shows up on high-mileage vehicles: the contract pays 70% of a replacement, you pay 30%, because the old part had 70% of its life used up. It's not necessarily unfair, but it's a surprise if you didn't know it was there.
What to look for: the words "betterment," "pro rata," or "depreciation" applied to parts.
4. Aggregate payout limits
There are usually two ceilings: a per-claim limit and a lifetime aggregate limit, often the vehicle's actual cash value at the time of the claim.
The aggregate limit is the one to check. If your contract caps total lifetime payouts at, say, the car's book value, then a single large engine claim may consume most or all of your coverage, and the contract effectively ends there even though the term hasn't.
What to look for: "aggregate limit of liability," "maximum benefit," or "actual cash value."
5. Maintenance and documentation requirements
This isn't hidden. It's stated plainly in Your Responsibilities, and it's still the single most common reason large claims get denied.
The contract requires you to maintain the vehicle per the manufacturer's schedule and to be able to prove it. On a $5,000 engine claim, the administrator will ask for your service records. No records, no payout.
What to do: photograph every service receipt and keep them in one folder on your phone. Two seconds per oil change, and it's the cheapest insurance on your insurance.
6. Prior authorization
Every contract requires the shop to call the claims line and get authorization before starting work. Repairs completed without it can be denied outright, even when the part was clearly covered.
This trips people up in emergencies. You're stranded, the shop is helpful and fast, and by the time anyone thinks about the contract the car is already apart.
What to do: put the claims number in your phone the day you buy the contract, under the car's name. Tell the shop about the coverage before you hand over the keys, not after.
7. Use-based exclusions
Standard contracts assume personal use. Rideshare driving, food delivery, plowing, towing above rated capacity, commercial use, and track days are typically excluded, and driving for a rideshare platform is common enough now that it catches people who never thought of their car as "commercial."
What to look for: a "commercial use" clause in the exclusions. If you drive for any platform, say so up front. Coverage for it often exists as an endorsement; what doesn't work is staying quiet and hoping.
The two-minute version
Ask the person selling it these five questions, and get the answers in writing:
- Is consequential damage to other covered parts included?
- What's the maximum labour rate you'll pay per hour?
- Is there a betterment or depreciation clause?
- What's the lifetime aggregate limit?
- Who is the administrator, and what's their claims number?
Anyone who can't or won't answer those five has told you everything you need to know. A real provider answers them in a couple of minutes, because they already know the contract they're selling.
Want a second set of eyes on a contract?
If someone's already quoted you, from me or from anyone else, send it over and I'll read the exclusions with you. No charge, and no obligation to buy from me.
This article is general information, not advice about a specific contract. Coverage, exclusions, and pricing vary by vehicle, administrator, and province. Your contract's terms control.