the brakes failed to function while I drove. I almost hit the car in front of me. the brake booster was not functioning. the engine check light appeared suddenly, but with that other messages too, and also that was safe to continue to drive with caution. Just to mention two more messages that appeared on the display were: Stability control not available and Hill descent Control not available. I had to press extremely hard to break the car and of course I had to drive very slowly. I was cough of guard and almost hit a car in front of me at the traffic light. afterwards I just drove very slowly to my house. I checked the errors on my car and did research (I did not go to the dealership because they just extort money from you). I found out that the auxiliary battery failed. I replaced the battery and reset the system and the new battery information and that fixed the issue. I read on the Land Rover forums similar experience from many owners of this car. I believe there is a serious design flow because the low voltage of the auxiliary battery should not have caused the brake booster to malfunction while I drove. Just to mention that this auxiliary battery is an additional battery, (it looks like a motorcycle battery) and the main one is still healthy. And this is a hybrid (PHEV) car. Lots of source of energy to power important modules in the car which should not depend on the small auxiliary battery. Plus, the engine was running, meaning the alternator should be enough to power the modules that failed. I was very scared and happy that it was not my wife who drove the car. I have a report that was generated by the diagnostic tool that I use. A lot of errors popped up during that scary drive home. I attached the report I recorded from my diagnostic tool.

- Clarksburg, MD, USA

In June 2023, I started my car and I got 2 error messages "Hill Descent Control not available" and "OK to drive with caution stability control not available", then when pressing the brake, it was very difficult to press the brake and stop the car. I took to the dealer and they replaced the secondary auxillary battery. In July 2024, I started my car and received the same 2 error messages and had trouble using my brakes again (same issue as in 2023). My car is again at the dealer, and I am told that the secondary auxiliary battery has failed again, and they can't figure out why. This seems to be a serious and dangerous situation, and I read online that there have been other complaints from other owners. My 4-year/50k mile warranty expires in October 2024, and I would like Land Rover to cover any future issues (at the very least) following the warranty period since this seems to be a recurring issue.

- Manhattan Beach, CA, USA

On December 17, 2022 I got back in my car from an earlier outing and had no brakes whatsoever. There was no warning, only a warning light afterwards that read something along the lines of "*** brake problem. Still safe to drive." The car is under warranty so I had it towed to Tacoma Land Rover. The brake situation was so dire that I sealed the key in an envelope, warning people there were no brakes. Long story but they determined that the brake failure was caused by a "dead auxiliary battery." I believe they said they replaced the battery but they might have recharged it since I wasn't asked to pay for a new one. If this had happened on the highway, I and others could have easily died. I'm afraid my safety is still at risk because there simply was no warning. I was fortunate that I was downtown late in the evening so there weren't many cars or pedestrians. I don't know if Land Rover had anyone inspect anything. There is no mention of it in the paperwork. I have asked them several times to change that "discharge" paperwork to reflect a "complete brake failure" but they do not reply. Paperwork currently reads something along the lines of, "...customer reports brake pedal is hard to depress..." and that's not the case at all.

- Lacey, WA, USA