Cadillac Lyriq Problems: 2 Issues Every Owner Should Know
2023-2025 model years · Based on 0+ owner reports · Last updated March 2026
According to Au7o's analysis of 0+ owner reports, the 2023-2025 Cadillac Lyriq has 2 documented known issues. No issues are rated critical, indicating generally reliable ownership. Across all issues, repair costs range from $0 to $500. Full technical analysis and DIY maintenance guides at au7o.io.
All 2 Known Issues
The Cadillac Lyriq, like many modern EVs, can experience 12V auxiliary battery drain issues. The 12V battery powers the vehicle's computers, locks, and startup systems (the main Ultium battery pack provides drive power). Parasitic drain from always-on systems (connected features, OTA update monitoring, security) can kill the 12V battery if the vehicle sits for extended periods. Some early Lyriq owners have reported dead 12V batteries after just 1-2 weeks of sitting. Software updates have addressed some drain issues but the fundamental concern remains for vehicles parked for extended periods.
Common Symptoms
- Vehicle will not unlock or respond to key fob
- Touchscreen and infotainment won't turn on
- Vehicle won't enter Ready mode
- "Service Battery Charging System" warning
- Random electrical resets or glitches
- Vehicle dead after sitting 1-2 weeks
How to Fix
GM has released multiple software updates (OTA) that reduce parasitic drain. Ensure the vehicle is on the latest software version. For vehicles parked for extended periods, plug in the Level 1 or Level 2 charger which keeps the 12V battery maintained. A 12V battery maintainer/trickle charger connected to the underhood jump-start terminals can help for long-term storage. If the 12V battery is already degraded from deep discharges, it should be replaced.
What Owners Are Using
Parts and tips from 0+ owners who fixed this issue
- TipGM TSB 23-NA-124 addresses Serial Data Gateway Module software causing 12V drain. Customer Satisfaction Program N232416980 covers free dealer reprogramming per PIT6065C. This fix resolves the majority of Lyriq 12V drain complaints - request it specifically at your dealer visit
- TipIf battery needs replacement, use Group H5/LN2/47 AGM. Ohmmu lithium 12V battery confirmed compatible by CadillacForums members and offers significant weight savings. Keep Lyriq plugged in via Level 1/2 charger when parked to maintain 12V system health
- NoteFor storage beyond 10 days, use NOCO Genius 10 on underhood jump terminals (NOT direct battery terminals). Do NOT use conventional charger - can damage BMS. A dead 12V on Lyriq means no access to vehicle including doors, frunk, and charge port
Some Lyriq owners report intermittent charging issues including the charge port door not opening or closing properly, charging sessions stopping unexpectedly, and difficulty with certain DC fast chargers. The motorized charge port door can stick or fail to actuate in cold weather. Some Level 2 and DC fast charging stations have compatibility issues with the Lyriq's charging module. GM has addressed many of these with software updates.
Common Symptoms
- Charge port door won't open when pressed
- Charging session stops unexpectedly before completion
- Error message when attempting to charge at certain stations
- Charge port door stuck open or closed
- Slow charging speed on DC fast charger
How to Fix
Install latest OTA software updates which address many charging compatibility issues. For stuck charge port doors, the manual release inside the cargo area allows manual opening. GM dealers can recalibrate the charge port motor. For DC fast charging issues, try different charging networks - the Lyriq works best with EVgo and ChargePoint stations. Cold weather can cause the door to stick - a silicone spray on the door seal helps.
What Owners Are Using
Parts and tips from 0+ owners who fixed this issue
- TipGM Service Campaign N232409680 covers free charge port housing replacement (part 86812523, revised design) for affected Lyriqs. Contact dealer with VIN to check eligibility. The revised design addresses the latch mechanism that fails to release the charging plug
- TipPrevent cold-weather charge port freezing by applying dielectric grease on door seal before winter. Manual emergency release cord located in cargo floor under left panel - familiarize yourself with its location before you need it. Some owners pre-heat cabin before unplugging in freezing temperatures
- NoteIf charging session stops unexpectedly, check for pending OTA updates first - several charging software updates have been released. Try a different charging network to rule out station compatibility. Pre-condition battery in cold weather before attempting DCFC - cold battery will either refuse fast charge or charge very slowly
Frequently Asked Questions
What are the most common Cadillac Lyriq problems?
According to Au7o's analysis of 0+ owner reports, the 2023-2025 Cadillac Lyriq has 2 documented issues. The most frequently reported are: 12V Battery Drain and Electrical Gremlins, Charge Port Door and Charging Session Issues. None are rated critical, but regular maintenance is recommended.
Is the Cadillac Lyriq reliable?
The 2023-2025 Cadillac Lyriq has 2 known issues documented across 0+ owner reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Cadillac Lyriq problems?
Repair costs for known Cadillac Lyriq issues range from $0 to $500, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
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