2020 Toyota Corolla Bulb Sizes
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick Reference
| Location | Bulb Size | Type |
|---|---|---|
| Low Beam (Halogen) | H11 | Halogen |
| Low Beam (LED) | - | LED (Non-replaceable module) |
| High Beam (Halogen) | 9005 | Halogen |
| High Beam (LED) | - | LED (Non-replaceable module) |
| Fog Light (Halogen) | H16 (Type 2) | Halogen |
| Fog Light (LED) | - | LED (Non-replaceable module) |
| DRL (Halogen) | 7443 or 7440 | Halogen |
| DRL (LED) | - | LED (Integrated) |
| Front Turn Signal | 7440 | Halogen |
| Rear Turn Signal | 7440 | Halogen |
| Brake Light | 7443 | Halogen |
| Tail Light | 7443 | Halogen |
| Reverse Light | 921 | Halogen |
| License Plate Light | 194 | Halogen |
| Front Side Marker | 194 | Halogen |
| Dome Light | 31mm Festoon | Halogen |
| Map Lights | 194 | Halogen |
The 2020 Toyota Corolla, part of the twelfth generation, offers a mixture of lighting technologies, primarily depending on the trim level. Many lower and mid-tier trims come equipped with traditional halogen bulbs, providing a straightforward and cost-effective lighting solution. However, higher trim levels and certain option packages feature advanced LED lighting for headlights, daytime running lights (DRLs), and sometimes even fog lights. It's crucial to identify your specific trim level and factory lighting configuration before purchasing replacement bulbs.
For models with factory LED headlights and fog lights, the LED components are often integrated into the housing and are not designed for individual bulb replacement. In such cases, if an LED fails, the entire headlight or fog light assembly typically needs to be replaced. Conversely, halogen-equipped models allow for simple bulb swaps.
LED vs Halogen Upgrade Considerations
Upgrading your 2020 Toyota Corolla from halogen to LED bulbs can significantly enhance visibility and modernize your vehicle's appearance. However, there are several key points to consider to ensure a successful and trouble-free conversion.
CANBUS Errors
The 2020 Toyota Corolla's electrical system, like many modern vehicles, utilizes a Controller Area Network Bus (CANBUS) to monitor various electrical components, including lighting. When you replace a halogen bulb with an LED, the lower power draw of the LED bulb can sometimes trick the CANBUS system into thinking there's a bulb out. This can trigger a
More specs for the 2020 Toyota Corolla
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2020 Toyota Corolla Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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