2021 Suzuki Across Problems: 1 Issue Every Owner Should Know
2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated June 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Suzuki Across has 1 documented known issues. No issues are rated critical, indicating generally reliable ownership. Across all issues, repair costs range from $ to $350. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2020-2025 Suzuki Across 2.5 PHEV, the Suzuki Across is a Toyota RAV4 PHEV rebadge and inherits Toyota PHEV 12V auxiliary battery issues — slow drain from telematics + various BCM modules can leave a 12V dead after 7-14 days parked. Toyota issued specific TSBs: T-SB-0021-20 (covers 2020 RAV4 hybrid/PHEV), TSB 0095-20 (firmware update fixing repeat drain after replacement), T-SB-0007-21 (poor DC-DC ground connection). Toyota covers these under their TSB program even though the car sold as Suzuki.
Common Symptoms
- will not wake
- dead 12V
- will not charge
How to Fix
Request a Toyota or Suzuki dealer to apply TSB 0095-20 firmware update and verify DC-DC ground connection (T-SB-0007-21). Use a 12V battery maintainer for parked stretches over 1 week. AGM 12V replacement around £200-£300 at independent. Symptoms typically appear at 10,000-30,000 miles per Toyota field data.