This is the maximum weight your vehicle can safely tow, considering its engine, brakes, transmission, and other factors. It’s determined by the manufacturer and specified in the owner’s manual.

This is the most common way to transfer data between functions. The first function performs its work and returns a value. The second function then receives this returned value as input.

It’s important to note that some Volvo S40 models may require professional programming for new key fobs. If you are unsure whether your car can be programmed yourself, consult your owner’s manual or contact a Volvo dealership.

Physically disabling the turbocharger wouldn’t be the best solution. Blocking airflow or fuel would damage the unit and potentially the engine. Removing the turbo entirely would require major modifications and leave you with significant power loss even in “NA mode.”

Implementing a reliable and safe system to switch between turbo and N/A operation on-the-fly is incredibly complex. You’d need to modify various engine components, including the intake manifold, exhaust system, wastegate control, and ECU programming.

Within the 20 seconds of “learn mode,” press any button on the first key fob. The system should learn the code for this fob, and the LED should flash once.

Both cars have received good safety ratings from the National Highway Traffic Safety Administration (NHTSA). However, the Civic might have a slight edge in specific categories based on the year and trim level you’re considering.

The first step is to check your car’s owner’s manual. Sometimes, there might be a specific procedure outlined for programming multiple key fobs for your exact model. This method might involve a different button sequence or include additional steps to retain both fobs’ functionality.