* Burnt-out brake light bulbs: This is the most common and easiest to fix. Check all three brake light bulbs (one in the center high-mounted stop lamp (CHMSL) and one in each taillight). Replace any that are burnt out.
* Blown fuse: Your Stratus has a fuse box (or possibly multiple fuse boxes) that protects the brake light circuit. Check your owner's manual to locate the fuse box and identify the fuse(s) responsible for the brake lights. Replace any blown fuses. Important: If a fuse blows again immediately after replacement, there's a short circuit somewhere in the system – do *not* keep replacing the fuse until you find the short.
* Brake light switch: This switch, located near the brake pedal, activates the brake lights when you press the pedal. It's a common point of failure. The switch may be worn out, broken, or have a poor connection. This requires replacing the brake light switch, which is relatively inexpensive and can often be done without specialized tools, although jacking the vehicle up might be necessary for access.
* Wiring problems: A broken, frayed, or corroded wire in the brake light circuit can interrupt the connection. This could be anywhere between the brake light switch and the brake lights themselves. You'll need to visually inspect the wiring harness for damage, paying close attention to areas where the wires are exposed or bend frequently. This is more challenging to diagnose and fix.
* Brake Pedal Position Sensor (if applicable): Some vehicles use a sensor to detect brake pedal position, and a malfunction here could impact brake light function. This is less likely but possible.
* Body Control Module (BCM) issue: In more sophisticated systems, the BCM might be responsible for controlling the brake lights. A malfunctioning BCM is a less frequent cause but would require professional diagnosis and potentially replacement. This is the most expensive option.
Troubleshooting Steps:
1. Check the bulbs: This is the easiest first step.
2. Check the fuses: This is quick and eliminates a simple electrical problem.
3. Inspect the brake light switch: Look for obvious damage or loose connections.
4. Visually inspect the wiring: Trace the wiring harness from the brake light switch to each brake light for any signs of damage.
5. If none of the above work: Take your vehicle to a qualified mechanic for a professional diagnosis.
Remember safety first. If you're uncomfortable working with car electrical systems, it's best to seek professional help. Driving with non-functional brake lights is extremely dangerous.
