NHTSA Complaint #11663564 — 2024 CADILLAC LYRIQ

POWER TRAIN issue reported to NHTSA

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Crash

Complaint Details

ODI Number	11663564
Vehicle	2024 CADILLAC LYRIQ
Component	POWER TRAIN
Date of Incident	May 28, 2025
Date Filed	May 28, 2025
Mileage	N/A miles
Crash	Yes
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MI

Consumer Description

While driving my 2024 Cadillac Lyriq in rolling traffic, the vehicle abruptly engaged the brakes without warning or cause. The braking was so forceful I initially thought I had been rear-ended. Once the braking event ended, I began to accelerate—only to discover the vehicle had shifted into reverse without any input from me. This resulted in a rear-end collision. There were no alerts or dashboard warnings to indicate the gear change. I believe this may be related to a malfunction in the automatic emergency braking system or the shift-by-wire controller. This behavior presents a serious safety hazard and must be investigated. I have filed a report with Cadillac and will be taking the vehicle to a dealership for diagnostics and data log review.

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