Analysts said they saw "limited scope for further earnings growth from North America" and challenges for other parts of the business.
In addition, they said their own earnings estimates are 5% below the current consensus on Wall Street.
After the market closes on July 31, the company is expected to report adjusted net income of $1.1 billion, or 64 cents a share, on sales of $31.1 billion based on a FactSet survey of nine analysts.
Fiat Chrysler shares fell 55 cents, or 4%, to end at $13.63.
The stock has fallen 10.6% since the company last reported earnings on May 3.
Shares of Tata Motors (TTM) rose 52 cents, or 4.5%, to end at $12.18. The company's chief operating officer, Satish Borwankar, left the board Monday after completing his two-year appointment.
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