The Chassis of the Toyota Avanza are as follow:
| Variants | 2019 Toyota Avanza 1.5E | 2019 Toyota Avanza 1.5S | 2019 Toyota Avanza 1.5S+ |
| Driven Wheels | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive |
| Chassis Type | Unibody | Unibody | Unibody |
| Front Suspension | MacPherson Strut | MacPherson Strut | MacPherson Strut |
| Rear Suspension | Live Axle with Coil Springs | Live Axle with Coil Springs | Live Axle with Coil Springs |
| Adaptive Suspension | |||
| Front Tyres | 185/65R15 | 185/65R15 | 185/65R15 |
| Rear Tyres | 185/65R15 | 185/65R15 | 185/65R15 |
| Spare Tyre | Full-size 15" Steel | Full-size 15" Steel | Full-size 15" Steel |
