Before changing lanes you must:

Question: Before changing lanes you must:

Answer options:

• Just signal ✅ Mirror check, signal and shoulder check
• Speed up
• Brake

Correct answer: Mirror check, signal and shoulder check

Explanation: Under injury-prevention and safety rules detailed in the ICBC guide, you must always perform a mirror check, signal, and shoulder check before moving laterally. This sequence is correct because it ensures you actively see oncoming traffic and clear your vehicle's blind spots. Merely signaling is insufficient and dangerous, while slowing down or accelerating before verifying a clear path can cause rear-end collisions. Officially, the BC Motor Vehicle Act requires drivers to ensure a lane change can be made safely before executing it. Mastering this sequence is crucial, as failing to shoulder check is a major cause of automatic failure on the Class 7 road test.