On the 2021+ Chevrolet Tahoe, Autel MaxiCOM MK808S is verified for 5 jobs and XTOOL D8 for 5. Both are verified for epb service / reset, abs bleed, injector coding, steering angle calibration, throttle / idle relearn.
From maker coverage lists only. "Unknown" means not yet verified, not unsupported.
| Job | Autel MaxiCOM MK808S | XTOOL D8 |
|---|---|---|
| EPB service / reset | ✓ Supported “Parking brake calibration; Activate/Deactivate rear park brake service position” · Above GM_V19.00 | ✓ Supported “Park Brake Calibration (BSCM); Activate Rear Park Brake Service Position (actuation test, BSCM); Deactivate Rear Park Brake Service Position (actuation test, BSCM)” · GM V15.90, function EPB v6.30 |
| ABS bleed | ✓ Supported “Automated brake bleed” · Above GM_V19.00 | ✓ Supported “Automated Brake Bleed (actuation test, BSCM)” · GM V15.90, function ABS BLEEDING v6.90 |
| Injector coding | ✓ Supported “Cylinder 1–6 fuel injector flow identifier” · Above GM_V19.00 | ✓ Supported “Display ECM Injector Flow Identifiers (ECM); Cylinder 1 Fuel Injector Flow Identifier (ECM); Cylinder 2 Fuel Injector Flow Identifier (ECM)” · GM V15.90, function INJECTOR CODING v6.60 |
| FCA Secure Gateway access | ? Unknown | ? Unknown |
| TPMS relearn | ? Unknown | ? Unknown |
| Steering angle calibration | ✓ Supported “Steering wheel angle sensor learn; Steering wheel angle sensor centering” · Above GM_V19.00 | ✓ Supported “Steering Wheel Angle Sensor Offset Calibration (BSCM); Steering Wheel Angle Sensor Centering (PSCM)” · GM V15.90, function EPS v6.60 |
| Battery registration (BMS) | ? Unknown | ? Unknown |
| Throttle / idle relearn | ✓ Supported “Throttle body idle air flow compensation reset” · Above GM_V19.00 | ✓ Supported “Throttle Body Idle Air Flow Compensation Reset (ECM)” · GM V15.90, function TPS v6.40 |
At cited prices, XTOOL D8 costs $60 less (Autel MaxiCOM MK808S: $479, XTOOL D8: $419, checked 2026-10-16). Across every vehicle we track, Autel MaxiCOM MK808S has 177 verified results on 44 vehicles and XTOOL D8 has 122 on 36. Partial entries on this vehicle: Autel MaxiCOM MK808S 0, XTOOL D8 0.
Autel MaxiCOM MK808S full coverage · XTOOL D8 full coverage · All tools for the 2021+ Chevrolet Tahoe
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