2025 Chevrolet Blazer Problems: 1 Issues Every Owner Should Know
2025 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated May 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2025 Chevrolet Blazer has 1 documented known issues. No issues are rated critical, indicating generally reliable ownership. Across all issues, repair costs range from $200 to $400. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2019-2025 Chevrolet Blazer, the AGM battery required for the auto start-stop system degrades prematurely, often failing within 2-3 years. When the battery weakens, the start-stop system disables itself and various electrical warnings appear. The auxiliary battery (on equipped models) can also fail, compounding the issues.
Common Symptoms
- Start-stop system not functioning
- Battery warning messages
- Multiple warning lights on startup
- Slow cranking
- Electrical accessories resetting
How to Fix
Replace the AGM battery with a genuine ACDelco AGM battery — standard flooded batteries are not compatible with the start-stop system. After replacement, a battery sensor reset via a scan tool is required. Some owners permanently disable start-stop with aftermarket modules if they find the feature annoying.
What Owners Are Using
Parts and tips from 0+ owners who fixed this issue
- UpgradeHigh-performance AGM battery with excellent cold cranking amps and deep cycle capability (Optima RedTop AGM Battery)
- UpgradeOEM-quality replacement battery with reliable performance (ACDelco Professional AGM Battery)
- UpgradeAutomatic battery maintainer to prevent parasitic drain issues during storage (Battery Tender Junior 12V Battery Charger Maintainer)
- UpgradeOEM-quality replacement sensor for accurate readings and proper system function (Bosch Replacement Sensor)