Like most other gadgets, cars also come with a ‘warranty void if…’ sticker. It’s actually very easy to get your car’s warranty voided, and dealers often void warranties for the flimsiest of the reasons. We take a look at the reasons why one could lose a car’s warranty, and how you can protect your car’s warranty by avoiding certain things.


Mahindra Scorpio Modified

As covered in one of our story on why not to modify your car, the biggest reason was the risk of losing the warranty. Car companies are pretty strict that way – if there has been a deviation from the stock condition, then there’s a chance that you’ll lose the warranty.

Structural modifications

Mahindra Scorpio Limousine

Say for instance you do a chassis elongation (limousine etc.) or transform the way the car looks, the manufacturer will surely take away all the warranty benefits.

Also read: Illegal car modifications

Tampering with the engine

Volkswagen TDI engine

Minor tweaks to the engine are fine but once you start getting serious upgrades done, then there’s a chance of losing the warranty. So while a replacement air filter might not do any harm, but if you retrofit an alternate fuel like CNG or LPG (unless your car’s manufacturer gives you that option), then that too effectively throws warranty out of the window.

Remaps and tuning boxes

Tuning box

One of the strong points behind modifying a car is to extract more performance but that’s likely to come at an expense. Changing the original engine map in the ECU to something that offers a better fuel economy or quicker 0-100 times might be a little problematic, as it can potentially take the warranty away. Same goes for the added tuning boxes.

Upsized wheels and tyres

Mahindra XUV500 Modified

There’s a lot of science that backs the manufacturers’ decision to stick to a particular tyre size. A size too big will hamper the ride quality while a size too small will not be the best option in terms of dynamics. When someone goes for upsized wheels and tyres, he/she risks damaging the original balance of the car. In addition, a bigger tyre might start rubbing against the wheel-arch and other components, which could lead to a fatal injury as well.

Also read: Automotive ‘Jugaads’ of India

Electric mods/spliced wires

Carefully concealed underneath the panels is a web of wires that the untrained might faint by just looking at it. One wrong connection and there’s a potential shock, damage to equipment, and maybe fire waiting to happen. Hence carmakers are pretty clear about electric mods. Also since warranties are mostly claimed after something goes wrong in the car, if the company finds that you tampered the connection, then your chances of getting a claim etc. for what could have been even a manufacturing defect are lost.

Not getting the car serviced on time


One of the reasons why you as a car owner should keep a record of your vehicle’s servicing is because these thing matter. A car serviced on time is likely to be healthier and will also have a longer life. So in the rare scenario, something goes wrong with the car and you don’t have a service history to back the fact that there has been no lapse in ownership, your case becomes weak.

Not running it the way it’s supposed to be run…

Track day Fiat Linea

[Image courtesy Team-BHP]

Before entering competitions like rallies and races, ensure that the company’s warranty supports that as well. As long as you’re not making a modification (mostly the irreversible ones), there shouldn’t be an issue, but it’s best to ask the company the same. Like some insurance companies don’t cover competitive events…

Also, stick to the manufacturer-recommended grade for engine oil etc.