2013–2014 Cadillac XTS: Burning smell or melted connector near the brake booster pump (recall 14V116)
Likely causes, ranked
- Corroded booster pump relay connector$0–$0Shop
Real-owner fix counts will appear here as reports come in.
DIY or shop: See DIY or shop section
Parts to check
As an Amazon Associate I earn from qualifying purchases.
These are search links; confirm fitment for your exact engine and trim. Affiliate disclosure
Symptom: A burning smell from under the hood or brake booster pump warnings.
Likely causes
- Corroded booster pump relay connector. GM seals the connector and replaces wiring as needed.
DIY or shop?
Dealer. Recall repairs are free.
Useful steps
- Check your VIN for 14V116.
- Get any burning smell checked right away.
Vehicle focus: 2013–2014 Cadillac XTS.
Safety / mechanic note
A melting connector can start a fire. Verify with a mechanic or dealer.
Recalls & service bulletins
Recalls
- 14V116000 2013–2014 XTS: a cavity plug on the brake booster pump connector can come loose, letting the relay connector corrode, short and melt. Dealers seal the plugs, re-route a vent hose and replace wiring harnesses as needed. Details
NHTSA complaints: Count unavailable: too few NHTSA complaints matched this issue under the model names we could query to give a reliable number (checked 2026-10-15).
Always check your VIN for open recalls at nhtsa.gov/recalls.
Sources
What actually fixed it?
Had this problem? Tell other owners what the real fix was. Reports are counted above; we never show made-up numbers.