Pre-purchase inspection checklist — 2018 Cadillac Ats
The 2018 Cadillac ATS is generally reliable, but check for potential steering and fuel pump issues due to recalls. Buyer attention is necessary for recurring issues, including the powertrain and electrical system. Confirm any recall repairs have been completed before purchase to ensure safety and performance reliability.
Known issues to inspect
Power steering assist failure
How to check: Test steering at low speeds and tight turns.
Fuel pump may detach
How to check: Inspect for recall repairs, listen for unusual sounds.
Occasional transmission issues
How to check: Test drive, listen for shifts and response.
Electrical system malfunctions
How to check: Test all electronics, including lights and dashboard.
Airbag system concerns
How to check: Ensure airbags are operational, check dash lights.
Test-drive walkthrough
- 01
Cold start
What to check: Listen for unusual noises from engine.
Red flag: Loud clanking or rattling sounds
- 02
First minute idling
What to check: Check dashboard for warning lights.
Red flag: Persistent warning lights on
- 03
Low-speed maneuvers
What to check: Test steering ease and feel.
Red flag: Heavy or no assist in steering
- 04
City driving
What to check: Monitor transmission shifts for smoothness.
Red flag: Hard or delayed shifts
- 05
Highway acceleration
What to check: Evaluate power and response on demand.
Red flag: Poor acceleration or hesitation
- 06
Braking test
What to check: Check for firm pedal feel and response.
Red flag: Spongy pedal or delayed braking
- 07
Parking
What to check: Listen for suspension noises over bumps.
Red flag: Clunking or knocking sounds
Questions for the seller
Use this exact phrasing.
- Has the steering recall been addressed?
- Were any fuel pump repairs completed?
- Have there been any transmission issues?
- What electrical problems have you faced?
- Have the airbags ever deployed?
Documents to request
Don't sign anything until you have these.
- Proof of recall repairs
- Full service history
- Accident and repair reports
- Ownership history
- Title and registration
Generated by gpt-4o on 8/20/2026. Grounded in the NHTSA recall corpus and owner-complaint patterns for the 2018 Cadillac Ats.