Why won't my Scion FR-S manual start—clutch switch or something else?
Likely causes, ranked
- Clutch interlock / starter safety switchDIY
- Battery / starter / ground issuesDIY
- Fuel/ignition after it does crankShop
Real-owner fix counts will appear here as reports come in.
DIY or shop: See DIY or shop section
Parts to check
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Short answer: Many FR-S manual no-starts are the clutch safety switch or a weak battery. Confirm crank vs no-crank, then test the switch before throwing parts.
Symptom: No crank in gear with clutch down, intermittent start depending on pedal position, or cranking with no fire.
What to check first
- Try starting in neutral with the clutch fully depressed.
- Test battery voltage under load.
- Check the clutch switch adjustment/continuity.
- Scan for immobilizer or engine codes if it cranks but will not run.
Likely causes
- Clutch interlock / starter safety switch. On manuals, the clutch pedal switch must close for the starter. Owners sometimes get a start only when the pedal is pressed just right.
- Battery / starter / ground issues. A weak battery or poor ground mimics a no-crank. Test voltage while cranking.
- Fuel/ignition after it does crank. If it cranks but will not fire, look at immobilizer, fuel, and spark next—not the clutch switch.
What it usually costs
A clutch switch is usually inexpensive; diagnosis time at a shop varies.
Is it safe to keep driving?
Yes to diagnose in a safe place. Do not keep grinding a weak starter.
DIY or shop?
Switch testing and battery checks are DIY for careful owners.
Recalls, bulletins and complaints in plain words
- Related recalls: NHTSA lists these recalls touching this area of the Scion FR-S: 16V075000 (2013-2016 model years, power train:automatic transmission:park/neutral start interlock switch); 18V772000 (2013-2013 model years, engine and engine cooling:engine). Check your VIN at nhtsa.gov/recalls. If your car is part of a recall, the dealer fixes it for free.
- Plain words: The complaint count below shows how often owners reported problems that mention these words to NHTSA. A count is not proof of a defect.
- NHTSA complaints: 19 keyword-matched complaints for Scion FR-S 2013–2016 (of 202 unique complaints queried, NHTSA complaints API by model year, queried 2026-11-06; keywords: no start, crank, clutch, interlock, battery). This counts complaints that mention these words. It is not a defect finding.
What owners report
- In Please help my frs wont start‼️(manual) on Reddit r/ft86, a manual FR-S owner asked for help when the car would not start and the community walked through clutch-switch and basic no-start checks.
- In MY 2013 SCION FRS WONT START PLEASE HELP on Reddit r/MechanicAdvice, a 2013 Scion FR-S owner posted a no-start plea; replies focused on systematic starter, battery, and clutch-safety diagnosis.
Quick tip
Separate no-crank (switch/battery/starter) from crank-no-start (fuel/spark/immob).
Vehicle focus: Scion FR-S 2013-2016 manual transmissions (related Subaru BRZ/Toyota 86 similar).
Safety / mechanic note
A car that will not restart in traffic needs a tow plan. Verify with a mechanic.
Recalls & service bulletins
No recalls or service bulletins are listed for this page yet.
NHTSA complaints: 19 keyword-matched complaints for Scion FR-S 2013–2016 (of 202 unique complaints queried, NHTSA complaints API by model year, queried 2026-11-06; keywords: no start, crank, clutch, interlock, battery).
Always check your VIN for open recalls at nhtsa.gov/recalls.
Sources
What actually fixed it?
Had this problem? Tell other owners what the real fix was. Reports are counted above; we never show made-up numbers.