Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Exterior Lighting
The exterior lighting consists of the following:
- Headlamps
- Front park/turn signal lamps
- Rear lamps
- High-mounted stoplamp
- Fog lamps
- Parking lamps
- License plate lamps
- Reversing lamps
- Side marker lamps
- Side turn signal lamps
- Stoplamp switch
- Fog lamp switch
- Multifunction switch
- Light sensor
The headlamp switch is integrated into the multifunction switch. For additional information, refer to STEERING COLUMN SWITCHES article.
The DRL system operates the low beam headlamps at a reduced intensity. The smart junction box (SJB) supplies pulse width modulated (PWM) voltage to the low beam headlamps when the following conditions are met:
- The headlamp switch is not in the HEADLAMPS ON position.
- The ignition switch is in the RUN position.
- The parking brake control is released.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.