Volvo XC90: Starting and driving / Brake Assist System

Brakes

The brake pedal is used to apply the vehicle's regular brakes, which are part of the brake system. The vehicle is equipped with two brake circuits. If one brake circuit is damaged, the brake pedal may go down further when depressed...

Braking on wet roads. Braking on salted roads

Braking on wet roads Prolonged driving in heavy rain without braking may cause braking effect to be slightly delayed the first time the brakes are applied...

Other information:

Volvo XC90 2015-2024 Owners Manual: Starter battery

The starter battery is used to start the electrical system and power the starter motor and other electrical equipment in the vehicle. The vehicle has a single-pole electrical system that uses the chassis and engine mount as conductors. The vehicle has a voltage-regulated alternating current generator...

Volvo XC90 2015-2024 Owners Manual: Adaptive Cruise Control limitations

(Option/accessory.) Adaptive Cruise Control (ACC1) may have limited functionality in certain situations. Steep roads and/or heavy loads Adaptive Cruise Control is primarily intended to be driven on flat roads. The function may not be able to maintain the correct time interval to the vehicle ahead when driving down steep hills...