Pre-purchase inspection checklist — 2021 Cadillac Xt4
The 2021 Cadillac XT4 generally presents as a reliable used purchase with minimal recalls and a low number of complaints, primarily related to rear seat belt fasteners. Buyers should focus attention on checking the seat belt assemblies and addressing any related concerns with the seller.
Known issues to inspect
Loose rear seat belt fasteners
How to check: Inspect rear seat belts for secure fastening.
Test-drive walkthrough
- 01
Cold start
What to check: Listen for unusual engine noises.
Red flag: Loud knocking or ticking sounds
- 02
First minute idling
What to check: Stable idle without fluctuation.
Red flag: Engine idling is rough
- 03
City acceleration
What to check: Smooth power delivery without hesitation.
Red flag: Stuttering or power loss
- 04
Braking test
What to check: Responsive brakes with no noise or vibration.
Red flag: Braking causes vibration or noise
- 05
Highway cruising
What to check: Smooth ride and stable steering feel.
Red flag: Vibration or steering pull
- 06
Highway acceleration
What to check: Quick acceleration response without delays.
Red flag: Delayed acceleration or jerking
Questions for the seller
Use this exact phrasing.
- Has the seat belt recall been addressed?
- Any unresolved mechanical or electrical issues?
- Have any major services been performed recently?
- Why are you selling the vehicle?
Documents to request
Don't sign anything until you have these.
- Vehicle maintenance records
- Recall repair receipts
- Accident history report
- Title and registration papers
Generated by gpt-4o on 6/7/2026. Grounded in the NHTSA recall corpus and owner-complaint patterns for the 2021 Cadillac Xt4.