The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2019 RX 350 Infotainment Freezing & CarPlay Issues - Any TSBs?

0

Mike T. · rep 0 · May 25, 3:30 AM · 1 replies · solved · Question

Vehicle: 2019 Lexus RX 350 F Sport

My 2019 Lexus RX 350 F Sport has been having intermittent issues with its infotainment system. Sometimes it freezes completely, requiring a restart of the car. More frustratingly, Apple CarPlay frequently disconnects or just won't connect at all. I've tried multiple cables and different iPhones, but the problem persists.

It's really annoying, especially on longer drives when I rely on navigation and music. I'm wondering if there's a known software bug or a Technical Service Bulletin (TSB) out there for this specific model year. Has anyone else experienced similar problems with their 2019 RX 350?

Any advice on troubleshooting before I take it to the dealer? I'd prefer to try a DIY fix if possible, but I'm open to professional help if it's a known complex issue.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 3:30 AM

0

ClearTheCode admin answer:

Infotainment system issues like freezing and connectivity problems, especially with Apple CarPlay/Android Auto, are not uncommon across various vehicle brands, including Lexus. Here's a breakdown of potential causes and steps:

  1. Software Glitches: The most frequent cause for these symptoms is a software bug. Lexus often releases over-the-air updates or updates installed by dealerships to address these. Your 2019 RX 350 likely uses a system that can benefit from such updates.
  2. Cable Quality: While you mentioned trying multiple cables, ensure they are high-quality, MFi-certified (for Apple CarPlay), and not excessively long. Cheap or damaged cables are a common culprit for intermittent connections.
  3. Phone Compatibility/Software: Ensure your iPhone is running the latest iOS version. Sometimes, an outdated phone OS can cause communication issues with the car's system.
  4. System Reset: You can try performing a soft reset of the infotainment system. Consult your owner's manual for the exact procedure, but it often involves holding down certain buttons (e.g., power button) for several seconds.
  5. Check for TSBs and Recalls: Dealerships have access to a database of TSBs. There might be a specific TSB related to infotainment software stability or CarPlay connectivity for the 2019 RX 350. These TSBs often outline specific diagnostic steps and software updates.

When to See a Shop:

  • If software resets and cable changes don't resolve the issue.
  • If the problem is persistent and impacts safety features or critical navigation.
  • If you suspect a hardware fault within the head unit or USB port.

While OBD codes are generally not triggered by infotainment issues, a dealer can check for communication errors within the vehicle's network that might point to a specific module. A visit to a Lexus dealership is recommended if basic troubleshooting fails, as they can perform a diagnostic scan and apply any relevant software updates.

Menu

Help & account