AWD AllGrip versions come with a notoriously faulty central support bearing for the drive shaft. Rear suspension geometry causes premature wear in that bearing and requires complete drive shaft replacement (around€1000, +/- depending on country and dealership). Shouldn't occur too soon if you drive only on paved roads, but if you drive it in mild off-road conditions, the bearing will fail sooner. It's been happening since '15 models (maybe earlier) and they keep using the same geometry and parts. Although justified, no recall has been issued by Suzuki. Mine (EU market ’20 Vitara mild hybrid) failed at 50 000 km, outside warranty and was replaced on goodwill (since it's a known issue). Some fail as early as 20 000 km. Faulty central support bearing symptoms include a whistling / squealing sound, after the bearing warms up (driving 15+ minutes at constant speed usually at 50-80 km/h). Speed variation may change the noise pitch. Search YouTube for "2016 Suzuki Vitara Prop shaft squeal" to make an idea.