143People in Tennessee practiced here todayTennessee CDL Pre-Trip Inspection: Lights Test 2026
16 questions on checking headlights, brake lights, and turn signals during a pre-trip inspection.
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About the Tennessee CDL lights and signals test
Lights and signals are one of the most commonly missed categories on a Tennessee pre-trip inspection, simply because there are so many to check individually across a commercial vehicle.
Headlights, tail lights, brake lights, turn signals, hazard flashers, and clearance and marker lights, plus how to test each one without a second person outside the vehicle, are all part of the routine here.
The Tennessee CDL Manual explains the full lights and signals check sequence in detail. Run through it here enough times and this category stops being the one that catches drivers off guard.
Every question traces back to the Tennessee CDL Manual - skim the right-of-way and signs chapters before your retake.
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🎓 Exam Mode - just like the real thing
- ⏱ 12-minute timer, same as your DMV
- 🙈 No hints, no instant feedback
- 🔀 Questions come in random order
- ❌ More than 3 mistakes ends the exam - like the real one
- 💾 Your practice progress on this test stays saved