Jaguar F Type Brake Warning & Infotainment Failures Fix

Having dealt with a similar issue on my 2015 F Pace, I can share my experience with this brake light situation. The symptoms you describe match exactly what I encountered. After seeing the brake light failure warning and system messages, I initially worried about a major brake system problem. However, it turned out to be much simpler. The automotive switch that detects brake pedal movement was just not properly calibrated. The fix was actually quite straightforward. The brake pedal position needed a minor adjustment to properly engage the brake light switch. This is a common vehicle safety issue that can happen over time with normal wear. I fixed this myself by: 1. Locating the brake light switch near the brake pedal 2. checking if the pedal made proper contact with the switch 3. Making a small adjustment to restore proper contact To help troubleshoot your specific case, could you share: Has there been any recent brake system work done? Does the brake pedal feel different than usual? Are all other brake lights functioning normally? This common issue often requires no parts replacement, just a simple adjustment. However, your specific case might be different, so these details would help provide more targeted advice.

Latest service was completed 1200 km ago, around 135200 km. The brake light warning keeps appearing intermittently. The switch itself seems to be working inconsistently, sometimes the tail lights activate properly, other times they dont respond at all when pressing the brake pedal. After checking the electrical connections, they appear clean and properly seated. The fuses are also intact. This suggests the brake light switch itself might be failing internally rather than just needing adjustment. Worth noting the infotainment electrical issues only started after the brake light problems began, which seems more than coincidental. The repair costs and diagnosis time are my main concerns before booking a service appointment. Would appreciate input from others who have dealt with similar electrical issues, especially regarding diagnostic steps and replacement parts pricing.

Thanks for those additional details about your F Type situation. The intermittent nature of the tail light activation strongly points toward an internal brake light switch failure rather than just a calibration issue. On my F Pace, the electrical issue in the infotainment system was indeed connected to the faulty brake light switch. The vehicle safety system detected the inconsistent signals from the switch, triggering multiple warnings. The good news is replacing the brake light switch resolved both problems completely. The repair involved: 1. Switch replacement: About 85€ for the part 2. Labor: Around 120€ (1 hour shop time) 3. System reset: Included in labor cost The diagnostic process was quick since the automotive switch is a common failure point. My advice would be to go ahead with the service appointment. Driving with unreliable brake lights is a serious vehicle safety concern, and the problem will likely worsen over time. Since you mentioned checking the electrical connections already, and given the correlation with the infotainment warnings, a switch replacement is likely the most cost-effective solution rather than spending time on further diagnostic steps. Have you noticed if the issue occurs more frequently when the brake pedal is pressed at a particular angle or depth?

Based on the brake pedal behavior, yes, the issue seems most noticeable when applying light pressure. The warning messages appear more frequently during gentle braking, like when coming to a slow stop at intersections. During harder braking, the lights usually work normally. Your repair cost breakdown is helpful. Those amounts seem reasonable compared to what I expected. The correlation between brake light functionality and infotainment warnings in your case matches my situation perfectly. Given the symptoms and your experience, I will book the service appointment. The intermittent electrical issues are concerning, and I agree about not wanting to risk driving with unreliable brake lights. Having both problems fixed with a single brake switch replacement would be ideal. Will update the forum once I get the official diagnosis and repair completed. Thanks for sharing the detailed information about your similar experience, it helps confirm my suspicions about the switch being the root cause rather than a more complex brake system problem.